Tag 2-Methylbutane

Dimethyl Disulfide (DMDS): Catalyst Sulfiding and Advantages

Isopentane is a pentane isomer. Isopentane, C5H12, also called methylbutane or 2-methylbutane, is a branched-chain alkane with five carbon atoms. Isopentane is an extremely volatile and flammable liquid at room temperature and pressure. The normal boiling point is just a few degrees above room temperature. It is a colorless and odorless liquid. Isopentane can be mixed with n-pentane to make EPS and it also can be mixed with cyclopentane as a foaming agent for rigid urethane foam. It is also used to produce toothpastes and cosmetics. As an anesthetic, isopentane is less potent than the shorter-chain alkanes; however, it appears more active metabolically.

Chemical name: iso-Pentane Chemical synonyms: Isopentane Product Brand: Chromasolv Material form: Solvent Density (g/cm3): 0.62 Flash Point (°C): -51 °C Molecular weight: 72.15 Molecular formula: C5H12 Chemical purity: =99.5% UN Number: UN 1265

• Isopentane Liquid Density: 27.5 scf/ Gallon
• Isopentane Vapor Pressure:
• Isopentane Packaging:
• Isopentane Fill Density: 56%

Key Specification Table

CAS #	EC Number	Hill Formula	Chemical Formula	Molar Mass
78-78-4	201-142-8	C₅H₁₂	C5H12	72.15 g/mol

Pricing & Availability

Catalogue Number	Availability	Packaging	Qty/Pack	Incoterms	Payment Terms	Remarks
JPG65980	Limited Availability	ISO Tank	14.7 MT	EXW, FOB, CFR, CIF, FCA	T/T, LC

Description
Catalogue Number	JPG65980
Synonyms	iso-Pentane, Isopentane
Description	2-Methylbutane
Overview	PHYSICAL PROPERTIES OF ISO-PENTANE EPS Grade Pentane blowing agent ( Thermacol General Grade  PU Grade(sandwich panel) Polymer Grade(LLDPE & HDPE) Pharma Grade LAB Grade(Linear Alkayl Benzene) Super Dry with moisture less than 10ppm for special application

PHYSICAL PROPERTIES OF ISO-PENTANE

PARAMETER	UNIT	TYPICAL VALUES
HSN Code		2901000
CAS Number		78-78-4
Molar Mass	g/mol	72.15
Physical Appearance		liquid, colorless
Odour		Odourless
Density at 15 °C	g/cm3	0.625
Melting Point	°C	-160
Boiling Point	°C	28
Flash Point	°C	-51
Vapour Pressure at 20 °C	kPa	76.1
Refractive Index		1.3575

Iso-Pentane is the first branched, liquid hydrocarbon or paraffin. This group of substances is also called alkanes. The iso-Pentane has a chemical formula of C5H12
Iso-Pentane is almost insoluble in water, but shows very good solubility or unlimited miscibility with many organic solvents such as other paraffins, ethers, esters, aromatics or chlorinated hydrocarbons.

    Cosmetics & Personal care
    Insulation Industry
    Polymer Industry
    Cooling Industry
    Chemicals Industry
    Fine Chemistry
    Appliance Industry

Physicochemical Information
Boiling point	28 °C (1013 hPa)
Density	0.62 g/cm3 (20 °C)
Explosion limit	1.3 – 7.6 %(V)
Flash point	-51 °C
Ignition temperature	420 °C
Melting Point	-159.77 °C
Vapor pressure	769.92 hPa (20 °C)
Solubility	0.048 g/l

Application
Like all alkanes (paraffins, saturated hydrocarbons), iso-Pentane is a very good solvent for non-polar substances such
as lubricating greases. However, its boiling point of 29 °C is very close to room temperature, so it is usually used
elsewhere.
Very pure, aromatics-free iso-Pentane is used in shaving gel or shower gel, as it already evaporates due to body
temperature, making the products foam up very finely and creamily.
Due to increasingly strict rules to protect the ozone layer and stop global warming, iso-Pentane is an ideal substitute
for chlorinated and fluorinated hydrocarbons for foaming polystyrene or polyurethane.
Cyclopentane is very often used in combination with different proportions of iso-Pentane to produce Polyurethane
(PU) foam. The Cyclopentane has a better insulating effect, the iso-Pentane evaporates more easily and contributes to
the optimal formation of the cell structure.
Geothermal plants are a significant contribution to renewable energy supply. In this process, heat is extracted from
the ground and converted into heating energy for buildings in a heat pump. iso-Pentane can be used as the process
medium in such heat pumps.
Shaving foam and shower gel
Non-polar solvent with very high volatility
Working medium in geothermal plants
Blowing agent for polystyrene and polyurethane foam
Building insulation
Process medium for polyethylene (PE, LLDPE) and polypropylene (PP)
The most widely produced plastic in the world is Polyethylene (PE). Modern plants polymerize the ethylene in the
gas phase. This must be cooled after the reaction so that the dust-fine plastic beads become solid and do not stick
to the equipment. iso-Pentane is injected in liquid form into the gas stream. It evaporates and thus cools the
reaction. The iso-Pentane can then be condensed and reused. It can also be used as a process medium for
Polypropylene (PP), which is produced in the same way in the gas phase
Polystyrene is a synthetic polymer made from monomers of the aromatic hydrocarbon styrene. Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard, and brittle. It is an inexpensive resin per unit weight. It is a poor barrier to oxygen and water vapour and has a relatively low melting point. Polystyrene is one of the most widely used plastics, the scale of its production being several million tonnes per year. Polystyrene can be naturally transparent, but can be colored with colorants. Uses include protective packaging, containers, lids, bottles, trays, tumblers, disposable cutlery, in the making of models, and as an alternative material for phonograph records..

In the recent month, the price of n-Pentane in the Chinese market generally showed an upward trend. From July 28 to August 3, the price remained at about 6,900 yuan, and on August 5, it rose to about 7,000 yuan. Until August 17, the product price remained at this level. In late August, the price continued to rise, and until August 26, the price remained at about 7,100 yuan.

n-Pentane is an organic compound with the chemical formula of C5H12. It is mainly used as a solvent, a reference liquid for gas chromatography, and an anesthetic. It can also be used to make artificial ice, anesthetics, and synthesize pentanol and Isopentane.

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Product	Purity Grade (% wt)	CAS No.	Applications
n-Pentane	EPS Grade (≥95%)	109-66-0	Pentane blowing agent
	General Grade (≥95%)	109-66-0	Thermacol
	General Grade (≥95%)	109-66-0	Rigid foams for thermal insulation panels in the construction sector
	PU Grade (≥95%)	109-66-0	Sandwich Panel
	Polymer Grade (≥95%)	109-66-0	LLDPE & HDPE
	Pharma Grade (≥99%)	109-66-0	Linear Alkayl Benzene
	LAB Grade (≥99%)	109-66-0	Surfactant

The company carried out the “August 1st” Army Day activities to comfort veteransOn the afternoon of August 1, the group company held the “August 1st” Army Day veterans’ condolences activity in the West conference room on the first floor. Yu Rui, deputy general manager of Junyuan Group of Companies, Qiao Huijie, deputy general manager and director of safety and environmental protection, Chen Huimin, general office manager, and all veterans of the company participated in this activity.

At the beginning of the activity, Chen Huimin conveyed the concern letter from Chairman Miao Guangfa, in which he expressed his high praise and gratitude to all veterans, thanked them for their positive contributions to army building and national defense, and hoped that they would continue to carry forward the fine traditions of the army. Yu Rui and Qiao Huijie respectively expressed their high respect for the contributions and sacrifices made by the veterans to protect the country and the people through their speeches, and hoped that they would work hard and consistently in the future, display their demeanour as veterans, and contribute to the company’s career to a new level. At the end of the event, the leaders sent condolences to all veterans and took a group photo.

This year marks the 95th anniversary of the founding of the Chinese people’s Liberation Army. This condolence activity has further carried forward the fine tradition of supporting the army and giving preferential treatment to family members, effectively sent the company’s care and warmth to the veterans, and enhanced the Veterans’ sense of honor, belonging and happiness. The company’s veterans said that in the future, they will continue to uphold and carry forward the glorious tradition, always maintain the military’s vigorous and vigorous work style, achieve “no fading after retirement, no desire to retire after retirement”, and make due contributions to the company’s development based on their posts and dedication.

Introduction to Malaysia ASEAN Free Trade Certificate of Origin (FORM E)

Malaysia certificate of origin, also known as China’s certificate of origin for export to Malaysia, can also be called Malaysia ASEAN certificate of origin Form E. Malaysia ASEAN certificate of origin Form E is issued by China entry exit inspection and Quarantine Bureau and consists of one original and three copies. The main purpose of applying for ASEAN certificate of origin Form E for export to Malaysia is to obtain the tariff preference of the Malaysian authorities when the goods are imported into Malaysia, so as to enable the smooth customs clearance of this batch of goods.

The Malaysian certificate of origin Form E cannot have double headers. The header of the trader or factory can only be displayed under the description of the goods in the seventh column of the Form E certificate of origin, and cannot be displayed in the exporter column in the first column of the certificate of origin. For export declaration, the header of the trader or factory can be used normally.

The following points shall be noted when exporting Form E certificate of origin to Malaysia:

1. Consignee name and address cannot be bank name.

2. The departure date, ship name, port of departure and port of destination must be correct and consistent with the bill of lading.

3. The amount on the certificate of origin must show FOB amount.

Malaysian import tariff system

As a member of the world trade organization, Malaysia’s tariff level is generally low. Although the tariff rate of most items is lower than 25%, the value range of tariff rate is very wide. The tariff on basic food is very low, no more than 5%. The average tax rate for major goods is about 5%. The average tax rate of intermediate products and transportation equipment is less than 20%. The tax rate of consumer goods is higher, some as high as 60%. The tariff rate for high priced motor vehicles is higher than 100%. In short, of its total of about 600 imported items, only 91 have a tariff rate of more than 50%. As a member of the ASEAN Free Trade Area (AFTA) under construction, Malaysia’s tariff reduction will implement the “generally effective preferential tariff” (CEPT) plan in the AFTA regulations. The main imported products of Malaysia are divided into three categories. The first category is raw materials and means of production, including electronic components, textiles, plastics, machine parts, oil, chemical fertilizers, pesticides and food, accounting for 42.6% of the total import volume; The second category is mechanical equipment, including metal products, mechanical transport equipment, electronic instruments, heavy machinery and telecommunications equipment, accounting for 34.5% of the total import volume; The third category is daily necessities, including motorcycles, bicycles, jewelry and food, accounting for 21.9% of the total imports. All imported goods from Malaysia shall be subject to a 5% surcharge based on CIF value. Some basic goods such as fish, Cereals, salt, petroleum products, rubber, paper and printed products are exempt from additional tax. Excise taxes shall be levied on beer, alcohol and other beverages, cigarettes, gasoline, mineral oil and sugar, tires, cards, air conditioners, batteries, TV receivers, motor vehicles and motorcycles, matches and other commodities at ad valorem or specific volume.

1. Import documents.

(1) Commercial invoice: the original invoice used for tariff calculation shall be filled in and signed in English. The invoice must include the following items: mark, number, quantity and type of package, detailed commodity name, non-technical name or internal label code, gross weight and net weight, FOB, CIF fee and CIF price (if it belongs to different customs tariff items, each commodity must be separately indicated according to CIF price), delivery place and origin. The commodity description on the package must be consistent with that on the invoice. The invoice must be in triplicate.

(2) Certificate of origin certificate of origin is only for goods from federal countries.

(3) Bill of lading and ocean bill of lading need not be notarized. It is allowed to use the instruction bill of lading, but the address of a notified party shall be indicated.

2. Special provisions.

All details about the commodity description, metric weight and origin must be indicated on the label of the packed goods in Bahasa language. English is only allowed to be used in the second language. All packaged products must be printed with the following instructions: name of manufacturer, importer or wholesaler, origin, packaging content and product name. Food, medicine, livestock and meat must also be marked with health and quarantine provisions, including labeling provisions. Mark the following contents in Malaysian: country of origin, commodity description, weight, storage period, name and mailing address of the importer. The packaging of cigarettes must be printed with clear warnings of damage to health in the Mayan language.

3. Handling of unclaimed goods.

The goods that the buyer fails to pick up within the time limit can be kept in the customs warehouse for 21 days. If the consignee is notified after the time limit, the goods must be picked up within 7 days, or the customs will auction them. The auction proceeds will be used to pay the customs declaration fee, storage fee and all other expenses. The air cargo must be collected within 72 hours, or a high storage penalty will be imposed. If the goods are not received after 3 months, they will be returned.
Malaysia’s output of oil chemicals accounts for 20% of the world

From 2006 to 2020, the target of attracting investment in Malaysia’s chemical industry is US $10.6 billion, with an average annual growth rate of 6.9%. Malaysia is rich in oil and gas resources, with natural gas reserves ranking 14th in the world and oil reserves ranking 23rd in the world. Malaysia is also the third largest producer of liquefied natural gas in the world. Long term reliable and stable natural gas supply can ensure the sustainable growth of Malaysia’s petrochemical industry. Malaysia is currently an importer of petrochemical products and an exporter of petrochemical products. Oil chemicals are important chemicals in Malaysia.

Malaysian chemicals mainly include petrochemical products, inorganic and organic chemical raw materials, fertilizers and agricultural chemicals, food and feed additives, pharmaceutical chemicals, water treatment chemicals, papermaking chemicals, daily chemicals, pigments, dyes, inks and adhesives, catalysts, chemical equipment and instruments;

Why is n-Hexane used for edible oil extraction?

The conventional technology used for oil extraction from oilseeds is by solvent extraction. In solvent extraction, n-Hexane is used as a solvent for its attributes such as simple recovery, non-polar nature, low latent heat of vaporization (330 kJ/kg) and high selectivity to solvents. Unlike other solvents, hexane has certain properties that make it the ideal choice for oil extraction processes. Hexane can extract more oil from oilseeds compared to ethyl acetate and ether With its low boiling point, hexane can retain its liquid states even in cold climates.

The distillation range of n-Hexane is short, and the volatilization of harmful substances is relatively clean and thorough, so that the nutritional components of vegetable oil are not destroyed by high temperature, which improves the safety of edible oil, reduces the leaching consumption and residue of edible oil in production, has a high oil production rate, and is convenient for industrial scale production. Hexane is an organic solvent with good viscosity. It is usually used in rubber food, pharmaceutical, perfume, shoe making, adhesive tape, ball making, grinding, leather, textile, furniture, paint industries, or dilution, or cleaning solvent, or viscose.

In addition, it can also be used as a solvent for extracting seed oil (such as soybean oil, cottonseed oil, flax oil, peanut oil, safflower oil, etc.); It can also be used as a raw material for manufacturing polymers; Such as polypropylene and polyethylene.

Solvent extraction technology is a continuous edible oil extraction equipment, which uses the solubility of n-Hexane and oil to improve the oil content through soaking and spray. Solvent extraction technology can be used to extract oil from most oilseeds. The high oil content oilseeds such as rapeseed, peanut, cottonseed and sesame are extracted by pre pressing solvent, and the low oil content oilseeds are extracted by direct solvent.

The main advantage of using n-Hexane as extraction solvent to prepare edible oil is low residual oil. In addition, there are eight advantages:

1. In the detection of the final edible oil products, the sulfur and benzene content in n-Hexane is very low, which is almost impossible to detect, and more in line with the international health detection standards.

2. The distillation range of n-Hexane is 63 ℃ – 71 ℃, and the dissolution rate is small.

3. The recovery temperature of n-Hexane is low and the energy saving effect is obvious. Moreover, it is of great benefit to improve the quality of oil products, and the color will be better. The acid value and peroxide in the oil can be reduced to improve the refining yield.

4. The content of n-Hexane is increased, the extraction capacity is improved, and the processing capacity of the device is also improved.

5. n-Hexane has good compatibility with oil and can reduce the residual oil in the filter cake. Increase the output of oil and improve the efficiency of enterprises.

6. The use of n-Hexane can reduce the drying temperature during the cake recovery process, reduce the direct steam supply, and thus reduce the dust intrusion of the condensation recovery system. Prolong the life cycle of the condenser.

7. Due to the extremely low sulfur content in n-Hexane, the corrosion of the system is reduced and the service life of the equipment is prolonged.

8. Reducing the operating system temperature after using hexane can reduce the reduction crystallization of unstable substances in the plant and improve the utilization rate of the whole system.

It can be seen from the above description that n-Hexane is the best choice in vegetable oil plants, which is also the reason why solvent extraction plants are becoming more and more popular in large vegetable oil production plants.

Hexane and oils work quite well together, which makes hexane an ideal solvent for oil extraction. Oil extraction requires fats to be soluble in a material, and hexane is a great match because it allows the oils to dissolve and separate from the original oilseed plant. The solvent extraction plant is the best solution for the project with a capacity of more than 30 tons / day. Because the residual oil amount is more than 5% for the press method and less than 1% for the solvent extraction method. The crude powder extracted by solvent extraction can be widely used in food raw materials with high protein content and high quality because of its low temperature.

We have the latest equipment and technology for the strict checking of raw material at the initial stage only. We ensure that prior to manufacturing the material is checked on the grounds of quality. As quality is our topmost concern, we give maximum priority to the stringent checking of the entire range of products. Junyuan Petroleum Group provides the food grade hexane for edible oil extraction and for pharma industries.

2-Methylbutane

Extra Pure, ≥99%

Synonym(s): Isopentane

• ≥95% for general laboratory use.

Manufacturer: Junyuan Petroleum Group

CAS Numbers (All): 78-78-4

EC Number: 201-142-8

Linear Formula: CH3CH2CH(CH3)2

Specifications 

Vapor Pressure:	11.17 psi ( 20 °C)
Identity (IR):	complying
Assay (GC)	Min. 99.0 %
Autoignition Temperature:	788 °F
Explosion Limit:	8.3 %
Refractive Index:	n20/D 1.354(lit.)
Vapor Density:	2.6 (vs air)

Applications

2-Methylbutane is used as a chemical intermediate. It acts as a blowing agent for polystyrene and gasoline additive. It is used as a solvent of polyethylene and involved in the preparation of polystyrene foam and polyurethane foam. Further, it is used in a closed loop in geothermal power production to operate turbines. In addition to this, it is used to freeze biological samples like tissues in place of dry ice for cryosectioning in histology.

Isopentane is suggested to maximise the ORC electric efficiency.

Keywords: organic Rankine cycle; geothermal source; transcritical cycle; internal heat exchange; domestic application; electricity production

Notes

Store in a cool place. Incompatible with rubber, plastics and oxidizing agents.

2-Methylbutane, 99%,
– High purity solvents and reagents with low level of impurities, conform to ISO, Pharma, ACS standard
– Suitable for laboratory and special analytical techniques

Synonym: Ethyldimethylmethane, Isoamylhydride, Isopentane, iso-Pentane, 1,1,2-Trimethylethane
Synonyms: iso-Pentane
Formula: CH₃CH₂CH(CH₃)₂
MW: 72.15 g/mol
Boiling Pt: 30 °C (760 mmHg)
Melting Pt: –160 °C
Density: 0.62 g/cm³
Flash Pt: –51 °C
Storage Temperature: Refrigerator
MDL Number: MFCD00009338
CAS Number: 78-78-4
EINECS: 201-142-8
UN: 1265
ADR: 3,I

Compliance & Certification
Our company is certified in several ISO Standards related to Quality, Environment, as well as Health & Safety.
These certifications are part of our commitment to excellence and continuous improvement in quality. They are the foundation for the value we deliver to our customers through every process, program, product and solution we offer. This ensures our management systems, manufacturing processes, services, and documented procedures meet all requirements for global standardization and quality assurance.

Please visit for a full list of all Quality Management System ISO certificates.

ISO 9001
ISO 9001 certification is based on quality management system principles which includes strong customer focus, involvement of top management, standardized approaches and a continual improvement process. This standard is the global standard for quality management systems, ensuring that customers consistently receive quality products and services.

ISO 45001
ISO 45001 specifies requirements for an occupational health and safety (OH&S) management system, and gives guidance for its use, to enable organizations to provide safe and healthy workplaces by preventing work-related injury and ill health, as well as by proactively improving its OH&S performance. Our sites in many countries use this standard as a backbone to support a safe and healthy work environment.

ISO 14001
ISO 14001 specifies the requirements for an environmental management system that an organization can use to enhance its environmental performance. ISO 14001 is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability.

Our company has many initiatives around the world to manage its environmental responsibilities: Examples would be the reduction and recycling of waste or the reduction of water, fuel and energy consumption.

Specification Test Results

Appearance	Clear colorless Liquid
Infrared spectrum	Conforms
Refractive index	1.3520 to 1.3560 (20 °C, 589 nm)
GC	≥99.0 %
Residue after evaporation	≤10 ppm

Junyuan Petroleum Group donated money to help Heze fight epidemic

The epidemic situation is merciless, but people are sentient and work together to tide over the difficulties. In August, the situation of epidemic prevention and control in Heze City was extremely severe. In order to help Heze City win the sniper battle of epidemic prevention and control, on August 2, Junyuan Petroleum Group, the parent company of Dongying Liangxin Petrochemical Technology Development Limited Company actively supported Heze City and donated 50,000 yuan to the Red Cross Society of Heze City for the prevention and control of COVID-19 epidemic in Caoxian county and Mudan District. It practiced the responsibilities and responsibilities of private enterprises with practical actions, and gathered the positive energy of working together to overcome difficulties.

In recent years, Junyuan Petroleum Group, the parent company of Dongying Liangxin Petrochemical Technology Development Limited Company, has made positive contributions to social welfare undertakings while achieving rapid development. Participated in the educational activities organized by Dongying Civil Affairs Bureau, and donated 100,000 yuan at one time; Participated in the targeted poverty alleviation and Charity Day donation activities in Dingzhuang Town, Guangrao County, and donated 130,000 yuan; In response to the targeted poverty alleviation activities of Guangrao County Charity Federation, donated 200,000 yuan; In the year of COVID-19, the company donated 500000 yuan to Dingzhuang sub district Charity Federation and donated prevention and control materials to surrounding villages and epidemic prevention and control points under the condition that its production and operation were seriously affected.

Next, Junyuan Petroleum Group, Dongying Liangxin Petrochemical Technology Development Limited Company’s parent company, will continue to practice the responsibilities and responsibilities of private enterprises and make positive contributions to social development.