Archives October 2020

There are two isomers of n-pentane, isopentane (boiling point 28 ° C) and neopentane (boiling point 10 ° C). Pentane is aliphatic saturated hydrocarbon with stable chemical properties and does not react with acids and bases at normal temperature and pressure. The mixture of propylene, butene, isobutene, butane and isopropane is produced by pyrolysis at high temperature above 600 ℃ or in the presence of appropriate catalyst.

Extended data
The simple formula, the chemical name, is a simple expression after omitting the single bond in the structural formula, which is usually only applicable to pure substances existing in the form of molecules. It should show the functional groups in the substance: as long as the single bond of hydrocarbon is omitted, most single bonds such as carbon carbon single bond, carbon chlorine single bond, carbon and hydroxyl group single bond can be omitted or not omitted.
For example, the structural formula of propane is ch3ch2ch3, ethylene is CH2 = CH2, tetrachloromethane CCl4, ethanol CH3CH2OH, etc. But the double bond, triple bond and most of the rings must not be omitted. Carbon oxygen double bond can be omitted, such as formaldehyde HCHO. Multiple repeats can be combined with the same class, such as n-butane CH3 (CH2) 2ch3. The branched chain can pull out another chemical bond or bracket to connect to the connected carbon.

Pentane is an alkane with five carbon atoms. Its chemical formula is C5H12. It has three isomers: straight chain n-pentane and branched chain neopentane and isopentane
Neopentane: C (CH3) 4
Isopentane: ch3ch2ch (CH3) 2

What is the difference between n-pentane and isopentane and neopentane?

The physical properties of n-pentane, isopentane and neopentane are not different, but the chemical properties are different due to their different structures.
There are two isomers of n-pentane: isopentane and neopentane. The word “pentane” usually refers to n-pentane, that is, its straight chain isomer.
N-pentane (n-pentane), with the chemical formula of C5H12, is the fifth member of alkane. The boiling point of n-1653 pentane is 36.1 ℃.
Isopentane (isopentane, 2-methylbutane), also known as 2-methylbutane, the chemical formula is C5H12. Colorless, transparent, volatile liquid with pleasant aroma and boiling point of 28 ° C. It is mainly used in organic synthesis and also as solvent.
Neopentane, also known as 2,2-dimethylpropane and pentane, has a chemical formula of C5H12. It is a toxic chemical product with a boiling point of 10 ° C.
Pentane can be obtained by catalytic cracking and thermal decomposition of natural gas or petroleum. Due to different refining degrees, it often contains isomers of C5 Hydrocarbons, hydrocarbons with similar boiling points such as METHYLCYCLOPENTANE, unsaturated compounds, water, sulfur compounds and other impurities. In refining, the unsaturated compounds are removed by washing with sulfuric acid, and dehydrated by calcium chloride, anhydrous sodium sulfate, phosphorus pentoxide or sodium metal, and then distilled. Molecular sieves can also be used for dehydration.

Pentane/hexane isomerization increases the octane number of the light gasoline components n-pentane and n-hexane, which are found in abundance in straight-run gasoline. In a typical C 5 /C 6 isomerization process, dried and desulfurized feedstock is mixed with a small amount of organic chloride and recycled hydrogen, and then heated to reactor temperature. n-Pentane is unique among hydrocarbon solvents in that it has a high concentration of a single component. Our n-Pentane has a consistent composition and very high purity, containing a minimum of 95% of n-Pentane isomer. Carefully controlled production conditions also results in very low levels of aromatics and other impurities.

What is pentane used for?
Constituent in motor and aviation fuel; in solvent extraction processes, as a general laboratory solvent, and as a medium solvent for polymerization reactions; as raw material for production of olefins and other industrial chemicals like amyl chloride. Pentane is used in the manufacture of ice and low-temperature thermometers.

Pharmaceutical Chemicals – Normal Pentane You Can Trust Junyuan Petroleum Group – one of renowned suppliers, manufactures, exporters distributes a complete inventory of pharmaceutical chemicals, including n-Pentane, 99%, n-Pentane, 95%, HPLC solvents, research grade active ingredients, buffer solutions, and more.

What is a n-Pentane distributor partner?
We’re a full-service manufacturer, supplier, exporter and chemical distributor partner helping our customers meet manufacturing and distribution requirements at all levels of the supply chain. As a leading n-Pentane supplier, we supply fine and specialty pentanes throuh our extensive n-Pentane distributor network of global strategy business partners.

What is Junyuan Petroleum Group?
For over 10 years, the Junyuan Petroleum Group has served as a bulk pentane manufacturer, supplier, chemical distributor, blender and re-packager of quality chemicals and ingredients, and a trusted industrial, and lab chemical supplier. Junyuan Petroleum Group has been recognized as a Distinguished Manufacturer, Supplier and Distributor by several companies including China’s big three oil giants PetroChina, Sinopec and CNOOC, a world leading pentane manufacturer, an international diversified chemicals manufacturer.

n-Pentane, CAS:109-66-0, in 130kg drums and Isotank,160 drums/40″GP, 80 drums/20″ GP, 15MT/Isotank

Pentane is an alkane with the formula C 5 H 12. As a hydrocarbon, it can undergo hydrocarbon combustion which gives off heat. Traces of pentane can be found in raw natural gas, which is a type of fossil fuel. This pentane is usually removed before being shipped to customers as an energy currency.

• Molar mass: 72.15 grams/mole
• Formula: C₅H₁₂

• Boiling Point: 36oC
• Melting Point: -130oC

N-PENTANE is incompatible with strong oxidizers. It is also incompatible with strong acids, alkalis, and oxygen. Mixtures with chlorine gas have produced explosions. It will attack some forms of plastics, rubber, and coatings. (NTP, 1992)

General pentane (hereafter, pentane) is a colorless, volatile and flammable liquid with a sweet or gasoline-like odor. Pentane consists of three isomers: n-pentane (the most important isomer), isopentane, and neopentane. n-Pentane is a constituent of crude oil and a component of the condensate from natural gas production.

Junyuan Petroleum Group is a pentane manufacturer, supplier and distributor doing business for over 10 years. Our customers depend on Junyuan for a consistent and cost-effective supply of pentanes. Junyuan Petroleum Group has a team dedicated to ensuring the quality of the oil field chemicals we supply.

Give us a call at +8617810300898, or send us a message using the form below and we’ll follow-up with you shortly.

What is a MSDS Document?

QUESTION/PROBLEM

What is a MSDS Document?
Does Junyuan Petroleum Group provide a MSDS for scanning products?

APPLIES TO

• n-Pentane, CAS 109-66-0, EC Number 203-692-4, chemical formula CH₃ (CH₂)₃CH₃
• Isopentane, Synonyms: iso-Pentane, Isopentane EC Number: 201-142-8 CAS #: 78-78-4 Hill Formula: C₅H₁₂ Molar Mass: 72.15 g/mol Chemical Formula: C₅H₁₂
• Pentane Blends, n-Pentane/Isopentane blend, e.g. Pentane blend 60/40 Pentane 60/40 is a blend of 60% n-pentane and 40% isopentane.
• n-Hexane, CAS 110-54-3, EC Number 203-777-6, chemical formula CH₃ (CH₂)₄CH₃, Synonyms and Trade Names Hexane, normal-Hexane, Hexyl hydride
• Isohexane, CAS Number 92112-69-1 (Hexane, branched and linear). Empirical Formula (Hill Notation) C6H14. Molecular Weight 86.18 . EC Index Number 295-570-2
• Isohexane, Synonym: Hexanes, Isohexane CAS Number 107-83-5. Empirical Formula (Hill Notation) C6H14. Molecular Weight 86.18 . Beilstein/REAXYS Number 1730733 . MDL number MFCD02179311. PubChem Substance ID 24853608. NACRES NA.21
• n-Heptane, CAS 142-82-5, EC Number 205-563-8, chemical formula CH₃ (CH₂)₅CH₃, name: heptane: 2: synonyms: Dipropylmethane; Heptyl hydride; Normal heptane; Heptane; n-Heptane ;Isotopologues: Heptane-1,2,3,4,5,6-d13; Heptane-1,2,3,4-d9; Heptane-1,2,3,-d7; Heptane-1-d3; Heptane-d16
• n-Octane, CAS Number: 111-65-9; Synonym: n-Octane; Linear Formula: C8H18, EC Number 203-892-1. MDL number MFCD00009556. PubChem Substance ID 57648395. NACRES NA.21
• D Solvent, IDENTIFICATION CAS number: 64742-47-8 EC number: 926-141-6 (prov.)

Do the same chemical have two different CAS numbers?
It is the registration number of Chemical Abstracts Service (CAS) for the preparation of chemical substances. This number is an important tool to retrieve the information of chemical substances with multiple names. It is the unique digital identification number of a substance (compound, polymer material, biological sequence, mixture or alloy). CAS, a subsidiary organization of the American Chemical Society, is responsible for assigning a CAS number to each substance appearing in the literature, isomers, enzymes and mixtures: different isomer molecules have different CAS numbers.

RESOLUTION
A Material Safety Data Sheet (MSDS) User-added image is a document that contains information on the potential hazards (health, fire, reactivity and environmental) and how to work safely with the chemical product.
Junyuan Petroleum Group provides MSDS for all the specialty solvent products.
More information about MSDS can be found in the web e.g. on the page from Wikipedia.
The document Junyuan Petroleum Group Compliance – MSDS Position Statement can be downloaded from here.

What does MSDS stand for in chemistry?
MSDS stands for Material Safety Data Sheet. Each chemical has a material safety data sheet (MSDS) that lists its hazards. A material safety data sheet (MSDS), safety data sheet (SDS), or product safety data sheet (PSDS) is an important component of product stewardship and occupational safety and health.

What does MSDS(s) stand for?

What does MSDS stand for?

What is the purpose of MSDs data sheets?More information. The purpose of a Safety Data Sheet (SDS), formerly known as Material Safety Data Sheets (MSDS), is to provide information on the hazards of working with a chemical and procedures that should be used to ensure safety.

What are some of things you might find on MSDS?An MSDS sheet would get to include different information for chemicals which is known as their physical data, the physical data would include information like melting point, boiling point and also the flashpoint of chemicals.

What must be included on MSDS?MSDS‘s include information such as physical data (melting point freezing point, boiling point, flash point, toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and spill/leak procedures. This information will be needed if a spill or other accident occurs.

What’s the difference between a SDS and a MSDS?MSDS is Material Safety Data Sheets, whereas SDS just Safety Data Sheets. MSDS could be in different formats for the information, so nothing was regulated. SDS is similar to MSDS, the difference is that it is presented in a standardized, user-friendly, 16 section format.

What is a safety data sheet, what is its purpose?A Safety Data Sheet (formerly called Material Safety Data Sheet) is a detailed informational document prepared by the manufacturer or importer of a hazardous chemical . It describes the physical and chemical properties of the product.

What is MSDS and why is it important?The Importance of the MSDS. The MSDS, or material safety data sheet, is a standard publication issued to inform workers of potential hazards when dealing with industrial chemicals, solutions and materials. Among other things, the MSDS gives information about the proper storage, handling and disposal of a product.

What products need SDS sheets?Safety Data Sheets should be obtained for each hazardous chemical that is produced, imported, or used in the workplace. Some examples of products that you would need an SDS for would typically include paints, cleaners, solvents, sealants, lubricants, compressed gasses, fuels, etc.

How long must you keep safety data sheets (SDS)?When a chemical or product is no longer in use, the SDS is removed from the binder and thrown away. You share with the Human Resources Manager that SDS’s for chemicals no longer used you still must keep safety data sheets and they must be retained for at least 30 years.

How To Read a Safety Data Sheet (SDS)

• Section 1 identifies the chemical on the SDS as well as its intended use.
• Section 2 outlines the hazards of the chemical and appropriate warning information.
• Section 3 identifies the ingredient(s) of the chemical product identified on the SDS, including impurities and stabilizing additives.

When do I need a safety data sheet?A company is required to have a Material Safety Data Sheet for a product on hand when its employees are exposed over long term to the product in a potantially hazardous manner . In other words, if you are purchasing 5 gallons of shea butter, you are not in any harm and therefore do not need to have an MSDS sheet.

What do you know about safety data sheets?More About Safety Data Sheets (SDSs) They should be created by chemical manufacturers Employers should make sure they have a safety data sheet at the workplace for all hazardous chemicals Employers must allow employees to access those safety data sheets at any time during their work shift Safety data sheets must be accessible to workers “in the work area” .

Who uses MSDS database and why?You will find that an MSDS (material safety data sheet) database is used by various organizations in the world that use chemicals in a big way. Such organizations include chemical laboratories, and various research organizations engaged in chemical engineering research.

Why should you use MSDS?The general purpose of a MSDS is to provide the necessary information for the safe usage of chemicals in the workplace. Each MSDS provides information about a certain substance in terms of general use; it is still important that employers teach their workers about hazards in certain situations that may arise.

When do you need SDS?Employers are required to have an SDS available for each hazardous chemical they have on site, and the information contained on them is the basis for training their employees on the hazards of the chemicals to which they are exposed, according to 29 CFR 1910.1200 (h)(3)(iv).

What organization requires Material Safety data sheets?A Material Safety Data Sheet (MSDS) is a document required by the Occupational Safety and Health Administration (OSHA) that contains data about the physical properties of a particular hazardous substance.

Who is responsible to provide the MSDS?Producers, importers, and distributers are responsible for providing accurate MSDS information; downstream recipients of an MSDS are not generally responsible for its content.

What materials require SDS?Safety Data Sheets should be obtained for each hazardous chemical that is produced, imported, or used in the workplace. Some examples of products that you would need an SDS for would typically include paints, cleaners, solvents, sealants, lubricants, compressed gasses, fuels, etc.

What does SDS tell you?A safety data sheet (SDS), material safety data sheet (MSDS), or product safety data sheet (PSDS) are documents that list information relating to occupational safety and health for the use of various substances and products. SDSs are a widely used system for cataloging information on chemicals, chemical compounds, and chemical mixtures.

Certificate of Origin for the n-Pentane, Isopentane Pentane Blends, n-Hexane, Isohexane, n-Heptane, n-Octane and D Solvent products

We often see C / O, form a, form e, form F, Asia Pacific agreement, China Pakistan certificate of origin, Peru certificate of origin and so on.

1. Full name of General Certificate of origin
   The general certificate of origin is a document proving that the goods originated from a specific country or region and enjoy the normal tariff (most favored nation) treatment of the importing country,
   Its scope of application is: tariff collection, trade statistics, discriminatory quantitative restrictions, anti-dumping and countervailing, origin marking, government procurement and so on. Any country can do Co.
2. Form a is an official document with legal effect for China’s export products of the n-Pentane, Isopentane Pentane Blends, n-Hexane, Isohexane, n-Heptane, n-Octane and D Solvent to further reduce the import tariff on the basis of the tariff rate of the beneficiary country. Full name: generalized system of preferences
   There are 38 countries in the world that give preferential treatment to China (that is to say, f / a will only be done if exported to these countries)
   EU 27 (Belgium, Denmark, UK, Germany, France, Ireland, Italy, Luxembourg, Netherlands, Greece, Portugal, Spain, Austria, Finland, Sweden, Poland, Czech Republic, Slovakia, Latvian, Estonia, Lithuania, Hungary, Maltese, Cyprus, Slovenia, Bulgaria, Romania)
   Norway, Switzerland, Turkey, Russia, Belarus, Ukraine, Kazakhstan, Japan, Canada, Australia and New Zealand.
3. Form e is a preferential certificate of origin used in China ASEAN Free Trade Area.
   At present, China’s foreign countries issuing form e certificates include Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Vietnam.
   Form D is the certificate of origin of ASEAN Free Trade Area. (form D is equal to form e, generally called form d in foreign countries)
4. China Chile Free Trade Area certificate of origin (form f) free trade agreement between the government of the people’s Republic of China and the government of the Republic of Chile, single China Chile Free Trade Area form f certificate of origin!
5. The certificate of preferential origin of China Pakistan Free Trade Area (form P / FTA) can be issued to Pakistan,
   Since January 1, 2006, the two sides have implemented zero tariff and preferential tariff respectively for more than 3000 products including the n-Pentane, Isopentane Pentane Blends, n-Hexane, Isohexane, n-Heptane, n-Octane and D Solvent under tariff reduction. The tariff of 486 8-digit zero tariff products originating in China will be gradually reduced three times in two years,
   On January 1, 2008, all products were reduced to zero, and 486 8-digit zero tariff products originated in China were subject to preferential tariff, with an average preferential rate of 22%. The preferential tariff ranges of commodities granted with tariff preferences ranged from 1% to 10%.
   Certificate of Origin China- Pakistan FTA: CERTIFICATE OF ORIGIN CHINA- PAKISTAN FTA (FORM P) China and Pakistan signed the China-Pakistan Free Trade Agreement, China exports to Pakistan as long as the products accord with the “China-Pakistan Free Trade Agreement rules of origin”, exporters can apply for the CERTIFICATE OF ORIGIN CHINA- PAKISTAN FTA (that is, certificate of origin China-Pakistan FTA (FORM P), the importer of Pakistan can enjoy certain preferential treatment such as tariff deduction as long as it has obtained the Certificate of Origin (form P) issued by China entry-exit inspection and Quarantine agency. In the same way, Chinese importers can enjoy certain preferential treatment such as tariff deduction as long as they have obtained the certificate of origin issued by the government agency in Pakistan (FORM P).
6. Asia Pacific agreement preferential certificate of origin (form) can be issued
   Preferential certificate of origin countries are: South Korea, Sri Lanka, India and other three countries, the preferential tariff range of goods from 0% to 30%.
7. Certificate of origin form n (China New Zealand)
   Certificate of origin form for the free trade agreement between the government of the people’s Republic of China and the government of New Zealand for short. The issuance of certificate of origin of tariff preference in China New Zealand Free Trade Agreement is limited to the products that have been granted tariff preference by New Zealand under the published agreement. These products must comply with the rules of origin of the China New Zealand Free Trade Agreement, and those listed in the list of product specific origin standards must comply with the corresponding specific origin standards.
8. China-Peru FTA, China Peru free trade agreement.
9. The full name of certificate of origin (textile products) exported to EU is certificate of origin (textile products), also referred to as C / O. in order to distinguish it from general C / O, you can say C / O for textile products
   The certificate of origin of textiles exported to EU is a certificate of origin issued for textiles exported to EU countries, which is applied for by the trade and Industry Bureau.
   Textiles exported to EU need to apply for textile origin certificate:
   ① 8 categories are restricted by EU: 4, 5, 6, 7, 20, 26, 31, 115, from the original license to the certificate of origin, including other categories that need to apply for textile origin certificate.
   ② The former 15 EU countries: Germany, Britain, France, Italy, the Netherlands, Belgium, Luxemburg, Denmark, Ireland, Spain, Portugal, Greece, Sweden, Finland and Austria. New 10 countries: Poland, Hungary, Czech Republic, Slovenia, Cyprus, Estonia, Latvian, Lithuanian, Slovak and Maltese. Two new countries were added: Romania and Bulgaria.
10. Taiwan ECFA preferential certificate of origin
    The Cross Strait Economic Cooperation Framework Agreement (ECFA) is an economic cooperation agreement signed by both sides of the Taiwan Strait in accordance with the rules of the world trade organization, combined with the current situation and characteristics of cross-strait economic development, and in accordance with the principle of equality and reciprocity. The agreement came into effect on September 12, 2010. According to the ECFA agreement, the early harvest plan for trade in goods and services was fully implemented between the two sides of the Taiwan Straits from January 1, 2011. The mainland reduced tax on 539 products, including agricultural products, chemical products, mechanical products, electronic products, auto parts, textile products, light industrial products, metallurgical products, instrumentation and medical products. 267 kinds of goods exported from the mainland to Taiwan can also enjoy tariff reduction and exemption to enter the Taiwan market. It mainly involves mineral products, chemical products, plastics, rubber and its products, textile raw materials, glass products, mechanical products and other products. 267 items of goods exported from the mainland to Taiwan can enter the Taiwan market with the certificate of origin of the Cross Strait Economic Cooperation Framework Agreement (hereinafter referred to as “ECFA certificate”) issued by the entry-exit inspection and quarantine authorities. All products on the list will be gradually reduced tariff, and all will be reduced to zero within three years.
    These words should be registered in the system of the commodity inspection bureau or the online registration of the China Council for the promotion of international trade (CCPIT). Moreover, they can only be done by going to the CCPIT and the Commodity Inspection Bureau for registration and filing. Moreover, they have to take examinations and have manual signers.
    If it is not registered in the record, it is necessary to purchase the registration, authorization and professional business of certificate of origin (C.O) and preferential certificate (F.A), commodity inspection and plant inspection of export goods from the agent.

Certificate of origin has the following functions

1. Determine the main basis for enjoying tax rate treatment.
2. Important basis for trade statistics.
3. Control the import of goods from a specific country and determine the basis for the approval of release.
4. To prove the quality of the imported goods or the basis for the settlement .
5. Implement quantity control of import product .
6. Certificate of origin is one of the customs clearance documents.

What certificate of origin should be made for the n-Pentane, Isopentane Pentane Blends, n-Hexane, Isohexane, n-Heptane, n-Octane and D Solvent products exported to Taiwan?

Taiwan Certificate of Origin ECFA. It can also be used as general certificate of origin Co. When exporting goods of the n-Pentane, Isopentane Pentane Blends, n-Hexane, Isohexane, n-Heptane, n-Octane and D Solvent to Taiwan, mainland exporters need to provide Taiwan Customs with a certificate issued by China Council for the promotion of international trade to prove that the origin of the goods is made or produced in China. This certificate is called “Taiwan certificate of origin”.

Is it necessary to apply for ECFA certificate for each shipment to Taiwan?
ECFA preferential certificate of origin should be applied for each time. As long as the Taiwan customers need to import and do customs clearance, they should apply for one original every time.

Do you have any requirements on the application time for ECFA certificate of origin for export to Taiwan?
ECFA can be handled before and after sailing. If it is handled after one day, the words of reissue will be displayed. The reissued certificate does not affect the use of customs clearance. We will issue the certificate on the same day when we handle the ECFA certificate of origin. Please contact us for details: info@junyuanpetroleumgroup.com.

ECFA Preferential Certificate of Origin
The Cross Strait Economic Cooperation Framework Agreement (ECFA) is an economic cooperation agreement signed by both sides of the Taiwan Strait in accordance with the rules of the world trade organization, combined with the current situation and characteristics of cross-strait economic development, and in accordance with the principle of equality and reciprocity. The agreement came into effect on September 12, 2010.
According to the ECFA agreement, the early harvest plan for trade in goods and services was fully implemented between the two sides of the Taiwan Straits from January 1, 2011. The mainland reduced tax on 539 products, including agricultural products, chemical products, mechanical products, electronic products, auto parts, textile products, light industrial products, metallurgical products, instrumentation and medical products. 267 kinds of goods exported from the mainland to Taiwan can also enjoy tariff reduction and exemption to enter the Taiwan market.
It mainly involves mineral products, chemical products, plastics, rubber and its products, textile raw materials, glass products, mechanical products and other products. 267 items of goods exported from the mainland to Taiwan can enter the Taiwan market with the certificate of origin of the Cross Strait Economic Cooperation Framework Agreement (hereinafter referred to as “ECFA certificate”) issued by the entry-exit inspection and quarantine authorities. All products on the list will be gradually reduced tariff, and all will be reduced to zero within three years.

Brief Introduction
（1） Visa area
Taiwan
（2） Certificate name
Certificate of origin of Cross Strait Economic Cooperation Framework Agreement
（3） Visa products
The issuance of the certificate of origin of the cross strait economic cooperation framework agreement is limited to 267 products with preferential tariff under the published list of early harvest products in goods trade and tax reduction arrangement. These products must comply with the provisional rules of origin applicable to early harvest products in goods trade.
（4） Certificate text
The content of the certificate shall be filled in Chinese. If necessary, it should be supplemented with English, but not only in English.
2、 Application
The written application for ECFA certificate is based on form a application. The items in the application form shall be filled in truthfully, and the same column as the certificate shall be consistent with the content of the certificate. The application form shall be signed by the applicant and sealed by the applicant.
3、 Certificate number
The number of ECFA certificate must be filled with the letter “H” for the type identification of the certificate, and the arrangement of the certificate number of form a can be referred to for the rest. For example, h11470zc60390038 [1]
Filling instructions
edit
Column 1:
The detailed name, address, telephone, fax and e-mail of the exporter registered in our bureau shall be filled in. If there is no fax or email, please fill in “None”.
Column 2:
The detailed name, address, telephone, fax and email of the manufacturer shall be filled in. If there is no fax or email, please fill in “None”. If the certificate contains more than one manufacturer, the name and address of all manufacturers shall be listed in detail. If the certificate cannot be filled in, a list of manufacturers can be attached. If the producer and exporter are the same, please fill in “ditto”. If the information in this column is confidential, please fill in “when required by the visa authority or relevant authority”.
Column 3:
The detailed name, address, telephone, fax and e-mail of the importer should be filled in. If there is no fax or e-mail, please fill in “None”.
Column 4:
The mode and route of transportation shall be filled in, and the date of departure, the number of means of transport (ship, aircraft, etc.), the port of loading and the port of arrival shall be specified. If the date of departure has not been finalized, the expected date of departure can be filled in with the word “expected”.
Column 5:
Whether or not preferential tariff treatment is given, the customs of the importing party may mark (√) in this column. If preferential tariff treatment is not given, the import customs shall indicate the reasons in this column. This column shall be signed by the authorized signature of the customs of the importing party.
Column 6:
If necessary, please fill in the order number, L / C number, etc.
Column 7:
Item number should be filled in, but no more than 20 items.
Column 8:
The HS Code shall be filled in for each item in column 9, and the 8-digit code of the importer shall prevail.
Column 9:
The name of the goods, the number and types of packages shall be specified in detail for inspection by customs officers. The name of the goods may be in English in addition to the Chinese name, but not only in English. The name of the goods should be consistent with the description of the goods on the exporter’s invoice and the harmonized system. If it is in bulk, it should be marked “bulk”. When the cargo information in this column is completed, add “*” (three stars) or “\” (end slash symbol).
Column 10:
The quantity of each kind of goods can be filled in according to the unit of measurement commonly adopted by both sides of the Taiwan Strait, but the quantity measured in international units of measurement should be filled in at the same time, such as gross weight (in kilograms), volume (in liters), volume (in cubic meters), etc., so as to accurately reflect the quantity of goods.
Column 11:
The shipping mark or package number should be filled in for inspection by customs officers.
Column 12:
If the goods comply with the provisional rules of origin, the exporter must indicate in column 12 of this certificate the criteria of origin on which the goods are declared for preferential tariff treatment in the form specified in the following table:
Details of the production or manufacture of the goods listed in column 9
Fill in column 12
(1) Goods fully acquired by the exporter
“WO”
(2) It is produced entirely in one or both parties and is produced only from originating materials that comply with the provisional rules of origin of this Annex
“WP”
(3) Goods that meet the specific origin standards of the product
“PSR”
In addition, “ACU”, “DMI” or “FG” should also be filled in this column if the applicable origin standard of the goods is based on the “cumulative rule” clause, “minor content” clause or “interchangeable material” clause.
Column 13:
The actual transaction price, invoice number and invoice date of the goods specified in the commercial invoice issued by the exporter shall be filled in.
Column 14:
It should be completed and signed by the exporter or authorized person, and the place and date of signature should be filled in.
Column 15:
The place and date of the visa shall be filled in by the authorized personnel of the visa agency and signed and sealed. At the same time, the telephone number, fax number and address of the visa agency should be provided.
The certificate should be completed in Chinese, supplemented by English if necessary, but not only in English. All columns must be filled in. If there is a continuation page of the certificate, it should also be filled in according to the instructions, and the same certificate code should be filled in the continuation page. Please also fill in “page X of X” below the certificate. If the certificate has only one page, please also fill in “page 1 of 1”.
matters needing attention
edit
1、 The application date and issuing date of the certificate should be marked with the actual application date and the issuing date.
2、 Issuance of later issued (including alteration and reissue) Certificate
Within 90 days from the date of customs declaration of goods for export, the certificate of origin can be issued later (including alteration and reissue). The visa requirements for later issued (including modification and reissue) certificates shall be implemented according to the visa requirements of GSP reissued (including modification and reissue) certificates. The certificate of origin issued later (including alteration and reissue) shall be valid within 12 months from the date of customs declaration for export of goods, and the word “reissue” shall be noted.
3、 Validity of certificate
Valid for 12 months from the date of issue of the certificate.
4、 Direct shipping rules
Products must be transported in accordance with the direct transport rules of the ECFA provisional rules of origin. The stay time of the goods in the temporary storage of the third party shall not exceed 60 days from the date of arrival of the third party, and the goods must be under the supervision of the third party’s customs during the stay. When the goods are declared for import, the certificate issued by the customs of the transit party and other supporting documents approved by the customs of the importing party shall be submitted.
5、 Other visa requirements
（1） The declaration of the exporter in column 14 is only signed and not sealed;
（2） The goods covered by one certificate of origin shall be delivered in the same batch, and the number of items shall not exceed 20. Certificate of origin can only be issued in one original.
（3） Other visa requirements shall be implemented according to the visa requirements of GSP certificate.
reference material

1. Instructions for handling preferential certificate of origin of ECFA [cited on May 22, 2014]

N-pentane (C5H12) is the fifth member of alkane. There are two isomers of n-pentane: Isopentane (boiling point 28 ° C) and neopentane (boiling point 10 ° C). The term “pentane” usually refers to n-Pentane, that is, its straight chain isomer.

There are two isomers of n-pentane, isopentane (boiling point 28 ° C) and neopentane (boiling point 10 ° C). Pentane is aliphatic saturated hydrocarbon with stable chemical properties and does not react with acids and bases at normal temperature and pressure. The mixture of propylene, butene, isobutene, butane and isopropane is produced by pyrolysis at high temperature above 600 ℃ or in the presence of appropriate catalyst.

The term “pentane” usually refers to n-Pentane, that is, its straight chain isomer. The boiling point of n-pentane is 36.1 ℃. Isopentane (isopentane, 2-methylbutane) is also known as 2-methylbutane, the chemical formula is C5H12.

The configurations of n-pentane molecular bond rotation include: total intersection, ortho dislocation, partial intersection and para dislocation. In the configuration of n-butane, the distance between the two methyl groups is the farthest, the interaction is the weakest and the internal energy is the lowest. The distance between the two methyl groups of ortho dislocation is closer, so the stability is slightly poor.

n-Pentane can be cracked to produce olefins, can be oxidized to anhydride, isopentane can be dehydrogenated to isoprene, and so on. Many excellent process routes can be designed.

Applications: n-Pentane can be used as foaming agent of EPS expandable polystyrene and desorbent agent of molecular sieve dewaxing wax process. Product features: using high quality light hydrocarbon raw materials, high purity and stable quality.

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Isohexanes CAS 73513-42-5 SDS including Hazard identification, Composition/information on ingredients, First-aid measures, Fire-fighting measures, Accidental release measures, Handling and storage, Exposure controls/personal protection, Physical and chemical properties etc.

n-Heptane | ACS Reagent Grade | 99.9% | Clear Colorless Liquid | Non-Polar Solvent | For Botanical, Herbal & Medicinal Plant Solvent Extraction, Cleaning, Gas Chromatography (GC), Liquid Chromatography, HPLC | Formula C7H16 | CAS # 142-82-5

n-Heptane, ACS Reagent, 99.9% Features:

• DESCRIPTION

Heptane is metabolized to its parent alcohols (mainly 2-heptanol and 3 heptanol, and to a minor extent 1-heptanol and 4- heptanol).The heptanol metabolites are conjugated by glucuronates or sulfates, and subsequently excreted in urine. Heptane is further metabolized at relatively high rates by hydroxylation before being converted to the corresponding keto forms.

 Junyuan Petroleum Group offers Heptane(CAS#:142-82-5) MSDS, COA, density, melting point, boiling point, structure, formula, molecular weight etc.