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Certificate of Analysis Report

n-Heptane,99%

Lab Assistant	Sun Jiangfeng	Analyst	Ge Lianlian
Source of the Sample	Tank V207A	Quality Reviewer	Wu Yanling
Date Taken	14-08-2020	Lab Supervisor	Zhu Guorui
Project Analysis	Quality Controlling Index	Test Results	Test Methods
Colour and Status	Colorless, Transparent and Clear Liquid		Eye-measurement
Content of n-Heptane, w%	≥99	99.89	SH/T 0714
Distillation range, primary	≥94
distillation point, dry point	≤99	96-98	GB/T 6536
(℃)
Density (20 ℃), kg / m3	650-690	683	GB/T 1885
Bromine index, MGBR /	≤100	0.17	GB/T 11136
100g
Saybolt Colour	≥+28	+30	GB/T 3555
Sulfur content, mg/kg	≤2	0.11	SH/T 0689
Micro aromatic	≤10	Not Found	GB/T 17474
hydrocarbon, ppm
Water w/v%	≤0.1	0.0057	SH/T 0409
Nonvolatile content, w/v%	≤0.005	0.0002	GB/T 3209

Judgment of Product Quality : The quality of this product is up to standard.

Main Applications:
It can be used as solvent for hydrocarbon polymerization, solvent for extraction of various oils and essential oils, diluent for essential oil, cleaning agent for precision instruments (Freon substitute), and mixing binder, paint, coating and printing oil.

^{Market Research Center – Junyuan Petroleum Group}
In the past two years, n-Heptane has been performing well. Although the overall market demand is not good, most of the demand for n-Heptane comes from the pharmaceutical industry, especially the API (Active Pharmaceutical Ingredients ) industry. On the contrary, with the adjustment of national policies in China, the pharmaceutical industry is developing vigorously, so the market demand of n-Heptane is commendable.
In addition, because the relative stability of H-heptane is slightly better than that of n-Hexane, many enterprises have replaced n-Hexane with n-Heptane in the past two years, which is also a fundamental reason for the rise of n-Heptane market and the decline of n-Hexane.
In 2020, the market of n-Heptane is still developing steadily, and the demand is increasing slowly. Export is the development direction of n-Heptane. In fact, the export of n-Heptane is increasing greatly in recent years. In the future, the annual demand of n-Heptane is expected to reach 50,000 tons / year.
In 2020, with the gradual shrinkage of the market of general solvent oil and aromatic solvent oil, special oils such as n-Hexane, n-Heptane, Isoalkanes, D-series solvent oils gradually stepped onto the stage of the new year. From raw materials to downstream, from technology to policy, due to the second dip in the global economy, new pattern and changes have taken place in the solvent oil market, and Sinopec’s refineries have adjusted their product structure to withdraw from the solvent oil market.
As said above, the market of n-Heptane in China is not large, which is about 30,000-40,000 tons but not more than 50,000 tons per year.
Then why is n-Heptane always mentioned in the industry? Because n-Heptane plays an irreplaceable role in the field of pharmaceutical intermediates. At least, no effective substitutes for n-Heptane have been found.
In the past, n-Heptane was mainly relied on imports, most of which were Korean SK products. Now, Korean SK also accounts for a large sales share in the domestic market. In the past two years, due to the development of coal to liquid, the bottleneck of domestic n-Heptane manufacturers like Junyuan Petroleum Group has been greatly broken through, and today’s domestic n-Heptane has a foothold in the market.
Before, the domestic production of n-Heptane was based on petroleum basis 120 solvent oil. Due to the limited raw material conditions, the content of n-Heptane produced was just close to 97%, which was difficult to reach 98%. Even if the content reached 98%, the yield of the product could not come up, resulting in increased production costs.
With the advent of normal stable light hydrocarbon in coal chemical industry, the production of n-Heptane content can reach more than 98% effortlessly. Last year, China industry only took one year to make the content of n-Heptane more than 98%, which popularized the market. This year, it will take one year to popularize the 99% content of n-Heptane. In the future, the market will be content of n-Heptane 99%, and the quality will be more and more better. The quality is getting better, the price is getting cheaper.
Coal to n-Heptane has high yield and low production cost, which is the development trend of n-Heptane in the future. In the future, the market will become more and more difficult. Therefore, we can only work hard on the product technology to make the quality standard of products reach another higher level, which is also the inevitable law of the development of things.
Last year, it is estimated that several manufacturers failed to put into production successfully for some reason, so n-Heptane is still in a tight market stage. As more and more terminal enterprises replace n-Hexane with n-Heptane, more than 97% of the n-Hexane market will gradually shrink.

Hexane is an organic compound made of carbon and hydrogen that is most commonly isolated as a byproduct of petroleum and crude oil refinement. At room temperature it is an odorless, colorless liquid, and it has many uses in industry. It is a very popular solvent, for instance, and is often used in industrial cleaners; it is also frequently used to extract oils from vegetables, particularly soybeans. Most vehicle-grade gasoline contains it, too. Though most experts say the compound is non-toxic and presents only low risks to humans and animals, there is still a great deal of controversy in many places when it comes to how often it is included, sometimes without full disclosure, in foods and consumer products.
Molecular Breakdown
It is usually considered to be a relatively simple molecule. As the hex- prefix indicates, it has six carbon atoms, which are accompanied by 14 hydrogen atoms giving it the molecular formula C6H14. The carbons are chained in a row, one following the next. Each carbon has at least two hydrogen atoms attached to it except for the first and last carbon, which have three. Due to its exclusive carbon-hydrogen makeup and the fact that it only has single molecular bonds, it can be classified as a straight-chain alkane.
Hexane is usually a colorless liquid, best known for being a solvent.
The compound is also easily represented visually. When drawn as a Kekulé structure, it is a line of six carbons, each of which has four line-bonds. Hydrogens surround the central carbon chain so that the condensed structure is written as CH₃CH₂CH₂CH₂CH₂CH₃. It is a simple line with five segments.
Some people who are exposed to hexane experience dizziness and nausea that worsens over time.

Benefits of Hexane

• Low boiling point.
• Low surface tension.
• Low flash point.
• Low solubility.

Physical Properties

This compound is stable at room temperature, and most commonly occurs as a colorless liquid. It has a melting point of roughly -139.54°F (-95.3°C), a boiling point of 154.04°F (67.8°C), and it’s molar mass is 86.18 grams per mole (g/mol). Hexane is also a non-polar molecule, which means that it is not soluble in water.

How It’s Extracted

Hexane occurs in a couple of different places in nature, but is usually most readily available in petroleum deposits. This is often why gasoline contains it in high concentrations. When petroleum and petroleum-containing oils are mined and refined, chemists are often able to isolate the compound, which can then be purified and sold commercially.

Popularity as a Solvent

One of the most popular uses is as an industrial cleaner or degreaser. It is very effective breaking molecules down and separating fats and lipids from other substances. From time to time it may be found in household cleaning products, too, but it is usually most common in solvents designed for use on heavy machinery or in places where a lot of space needs to be cleaned somewhat quickly. The solution isn’t normally very expensive, either, which is often a factor.

In Oil Processing

Many types of plants and vegetables are treated with this chemical in order to extract their oils and proteins for use in other products. Soybeans, peanuts, and corn are some of the most common. The compound is often able to break these foodstuffs down very efficiently, and the oils that result are typically ready to be repackaged and either sold or used in manufactured foods with very little additional treatment.

Common Applications

Hexane is commonly utilized as an industrial solvent used to manufacture products like paint thinner.

Industrial Applications

Hexane is often utilized to manufacture adhesives and similar products in which it acts as a strong cleaning agent. Hexane is also used as a cleaning agent during the manufacturing of the printing, textiles, and shoemaking industries. Hexane is present in glues used in shoemaking and roofing. It is also utilized for vegetable oil extraction from soybeans and other plants. This process is more environmentally friendly and more cost efficient than the traditional mechanical press method. Pure Hexane is not commonly used for vegetable oil extraction, but rather a mixture of isomers that comprise commercial Hexane. Hexane is utilized as a solvent and cleaning agent by the military and aerospace industries.

Consumer Applications

Consumer products containing Hexane include rubber cement, quick drying glues, gasoline, and paint remover.

Laboratory Applications

Hexane is often utilized as a solvent and reagent in laboratories. Sometimes solvents would need to be removed from lab reagents for the experiment being conducted. Rotary Evaporators or rotavapors are machines that are used to remove solvents like Hexane and Heptane from reaction mixtures. Rotary evaporators are common in most organic laboratories since they allow the removal to be performed swiftly and efficiently.

Hexane and Rotary Evaporators

Hexane and similar solvents like Heptane, Ethanol, Ethyl Acetate, Methanol, and Diethyl Ether, are removed from reaction mixtures by tools called Rotary Evaporators.

Other Common Uses

As good as it is at breaking compounds down, hexane can also be good at helping things stick together, particularly when used in conjunction with other non-water soluble compounds. It is often found listed as an ingredient in leather and shoe glue, for instance, and is sometimes used in roofing or tiling adhesives, too.

Controversy and Risks

Hexane is generally believed to be toxic or at least harmful when inhaled, and there have been instances of workplace injury and even death when people have spent long hours each day exposed to its fumes. This is most common in factories where oil extractions, industrial cleaning, or certain manufacturing operations take place. High exposure can cause skin irritation, dizziness, and nausea that progressively worsen over time.

There have also been questions about hexane residues that linger in vegetable oils, particularly when these show up in food products available in the general marketplace. Some health advocates argue that the presence of this chemical is unacceptable and dangerous, while others say that it is benign and shouldn’t be a cause for alarm. In most cases the amounts that actually end up in food are very, very small — but still, not a lot is known about how the compound behaves once ingested. Most of the toxicity studies that have been conducted have focused on inhalation and topical skin exposure.
Junyuan Petroleum Group reminds you that exposure to hexane without the right safety equipment can cause lasting damage and even death.

Industries where hexane is found

Several hundred million pounds of hexane are produced in the United States each year in the form of solvents. It is used as a cleaning agent in printing, shoe making, textiles, automotive brake repair, and furniture making. It is also used in the food industry.
Products where hexane is found
HexaneCommon household products, such as spray adhesives, contact cement, arts and craft paints, and stain removers contain hexane. The U.S. Department of Health and Human Services (HHS) Household Products Database lists 54 consumer products that contain hexane. Half of these products also contain solvents that increase the severity of hexane nerve damage. Although the majority of hexane containing products found on this list are used in the home, specifically for home maintenance, arts and crafts, and automotive products also contain it.
COA for n-Hexane, 99%
n-Hexane produced by Junyuan Petroleum Group is a liquid solvent used in industrial, professional, and consumer products such as adhesives
and coatings. It can also be used in food contact applications such as a solvent for oil seed extraction.

To furnish the ever rising and varying requisites of our honored patrons in the most effectual manner, we have been engrossed in the arena of offering to our patrons a wide plethora of N-Hexane. This Product is Processed with exceptionality, this array is widely acclaimed and treasured in the industry owing to its reliability, effectiveness and elevated shelf life. Besides this, we guarantee shipping N-Hexane to our patrons on time. In industry, N-Hexane is used in the formulation of glues for shoes, leather products, and roofing. It is also used to extract cooking oils (such as canola oil or soy oil) from seeds, for cleansing, degreasing a variety of items and in textile manufacturing. Since N-hexane cannot be easily deprotonated, it is used in the laboratory for reactions that involve very strong bases, such as the preparation of organolithiums e.g. Butyllithiums are typically supplied as a solution. In many applications (especially pharmaceutical), the use of n-hexane is being phased out due to its long term toxicity and often replaced by n-heptane, which will not form the toxic (hexane-2,5-dione) metabolite. A typical laboratory use of this product is to extract oil and grease contaminants from water and soil for analysis.

3. Physical / Chemical Properties
Hexane produced by Junyuan Petroleum Group is a highly flammable material primarily used in industrial settings. It has a high vapor
pressure, and should be handled only with adequate ventilation and in areas without any ignition source present (e.g. no open flames, static electricity sources, or unprotected light switches).
The flash point for Junyuan Petroleum Group Hexane is approximately 0ºF /-18ºC.

If you would like to purchase n–Hexane,99%, n–Hexane, 95%, n–Hexane, 60%, please call +86 178 1030 0898 or email us at info@junyuanpetroleumgroup.com.

References:

1. Agency for Toxic Substances and Disease Registry. Toxicological Profile for n-Hexane. U.S. Department of Health and Human Services. Public Health Service. July 1999. Available at: www.atsdr.cdc.gov/toxprofiles/tp113.pdf.
2. Hazard Evaluation System and Information Service.California Department of Public Health.n-Hexane use in vehicle repair (June 2001).n-Hexane medical guidelines (July 2000).Available: www.cdph.ca.gov/programs/hesis/Pages/ Publications.aspx#hazard.
3. The Institute for Research and Technical Assistance (IRTA), Glendale, CA.2009.Available at: www.irta.us/reports.htm.
4. Office of Environmental Health Hazard Assessment.California Environmental Protection Agency.1999.n-Hexane chronic reference exposure level.Available: www.oehha.ca.gov/air/allrels.html.
5. Scorecard. 2009.Chemical profiles by chemical.Total environmental releases in U.S.Available: www.scorecard.org
6. Linkedin.com https://www.linkedin.com/pulse/what-hexane-its-applications-david-zhang

^{©2020 Junyuan Petroleum Group. The information and recommendations contained herein are, to the best of Junyuan Petroleum Group’s knowledge and belief, accurate and reliable as of the date issued. You can contact Junyuan Petroleum Group to insure that this document is the most current available from Junyuan Petroleum Group. Users of chemical products should refer to the product labels and applicable Material Safety Data Sheets for information and recommendations as to the safe handling and use of this product. Alteration of this document is strictly prohibited. Except to the extent required by law, re-publication or retransmission of this document, in whole or in part, is not permitted. The term, “Junyuan Petroleum Group” is used for convenience, and may include any one or more of Junyuan Petroleum Group Company, Junyuan Corporation, or any affiliates in which they directly or indirectly hold any interest. Junyuan Petroleum Group, the Junyuan Petroleum Group Logo and the “J&Y” Device, and product names used herein are trademarks or registered trademarks of Junyuan Petroleum Group Corporation and/or its affiliates, unless otherwise noted.}

Product Zones | CPhI China

CPhI China 2020 is your gateway to successfully grow your business at the 2nd largest pharma market in the world. Together with P-MEC China which focuses on pharmaceutical machinery and equipment, CPhI China is your ONE-STOP SHOP pharmaceutical platform in Asia.

Hall E1-8

• E1 & E2 & E6: Integrated Pharm
• E2 & E3: CMO & CRO
• E3: Finished Dosage Formulation
• E3: Excipients Formulation
• E4 & E5: Natural Extracts
• E7: Intermediates & Fine Chemicals
• E7: Animal Health
• E8: Integrated Pharm & Packaging Materials 

Hall W1-5

• W1-W3: Integrated Pharm
• W4: bioLIVE
• W4: Intermediates & Fine Chemicals
• W5 & W9: Laboratory Equipment
• W6 – W8: Integrated Pharm
• W6: Onsite Activity Area

Hall N1-5

• N1 – N4: Pharmaceutical Machinery
• N1: Automation and Informatization Products
• N4: EP & Clean Technology
• N5: Packaging Materials

CPhI China showcase APIs (CPhI China zone), life science & technology and innovative drugs (bioLIVE China zone), outsourcing services in CRO & CMO areas (ICSE China zone), natural extracts (NEX China zone), finished dosage formulation (FDF China zone), veterinary medicines and feed additives (Animal Health and Feed zone), and pharmaceutical excipients (PharmaExcipients China zone)

Exhibitors’ profile are as below.

APIs and Intermediates

• Amino Acid & Derivatives
• Steroids
• Vitamins
• Analgesic-Antipyretic
• Anesthetics

• Pharma Intermediates
• Pesticide Intermediates
• Animal Drug Intermediates
• Fine Chemicals

Life Science & Technology and Innovative DrugsBiologics and New Therapies

• Recombinant Protein
• Polypeptide
• Nucleic Acid
• Vaccines
• Plasma
• Antibodies
• Cell and Gene Therapy
• Tumor Immunotherapy
• Stem Cell & iPS

Bioprocessing, Manufacturing and Solutions

• Cell Culture Media
• Biological Reagents
• Laboratory Consumables
• Bioreactors
• Bioseparation
• Protein Purification
• Bioprocessing
• Software and Service

Biotechnology and R&D services

• Molecular Biology
• Cell Biology
• Proteomics and Metabolomics
• Biotechnology Service Platform
• Detection Services
• Biology Information Services
• Drug R&D and Manufacturing
• Clinical Research

CRO and CMO Services

• Custom Synthesis
• Biotechnology
• Clinical Research
• Medicinal Chemistry
• Regulatory Services

• Other Related Services
• Process R&D
• Process Scale-up/ Optimization
• API Synthesis

• Intermediate Synthesis
• Preparation Production

Natural Extracts

• Plant Extracts
• Animal Extracts
• Food & Beverage Raw Materials

• TCM Raw Materials
• Dietary Supplement
• Functional Food Raw Materials

• Cosmetics Raw Materials
• Nutrition & Health Product Raw Materials

Finished Dosage Formulation

• Chemical Drugs
• Biopharmaceuticals
• Biological Products

• OEMs
• Chinese Herbal Medicine
• Health Care Products

Pharmaceutical Excipients

• Excipient
• Disintegrants
• Surfactant
• Essence
• Stabilizing agent
• Lubricants
• Enteric-coated material
• Menstruum

• Colorant
• PH control agents
• Glidant
• Antioxidant
• Sweetening agents
• Transdermal enhancers
• Modified Release
• Coating material

• Opacifier
• Filtering aid
• Preservative
• Plasticizer
• Correctives
• Fining agent
• Others

Veterinary Medicines and Feed Additives

• Feed raw materials and additives
• Veterinary biological
• Veterinary diagnostic reagent

• Veterinary API
• Veterinary preparation
• Animal health product

Check Full Exhibitor List

Junyuan Petroleum Group fully understands the needs of customers and strives to innovate to meet the continuous development needs of customers. We will grow with our customers and become the best provider of excellent products (n–Hexane, 99%, n–Heptane, 99%, n–Pentane, 99%, Isohexane, 99%, D20 Solvent, n–Octane, 99%, Pentane blends) and services in the field of biotechnology.

Introduction: according to the ranking data of reagent companies, the ranking of reagent companies is Sigma.

According to the ranking data of reagent companies, the ranking of reagent companies is Sigma, Merck, Afaisa, Sinopharm Group, Dow, Tishia, Cofik, Merrill, Adamas and Nanjing Chemical. The following is a detailed list of reagent companies.
Under the background of China’s huge consumer market, the demographic dividend of fully liberating the two child policy and stable economic growth, reagent industry will become one of the most potential industries. According to the analysis of reagent industry, the market scale of China’s reagent industry will reach 105 billion yuan by 2020.
Reagent company ranking: sigma (Sigma Aldrich)
Sigma Aldrich (Shanghai) Trading Co., Ltd. (sigma Aldrich) is a leading company in the field of life science with high-tech products.
Ranking of reagent companies: Merck
Merck syrano Co., Ltd. was registered in Beijing Administration for Industry and Commerce on April 27, 2010. ）Registered. The company’s business scope includes warehousing service, distribution and subcontracting, import and export of goods, import and export of technology, etc.
Ranking of reagent companies: Alfaesa (China) Chemical Co., Ltd
Alfa aesar– The manufacturer and supplier of scientific research chemicals, metals and materials, which is a part of Thermo Fisher technology, is a manufacturer and supplier of scientific research chemicals, metals and materials. The company’s products play an important role in the research and development of various application fields. With years of production experience, the company’s chemists have mastered a lot of skills and experience, and use the From laboratory scale to pilot plant and then to commercial mass production process, we deliver high quality chemical products to customers.
Ranking of reagent companies: Sinopharm group (Sinopharm Holdings Co., Ltd.)
Sinopharm Holdings Co., Ltd. was established in January 2003. It was listed in Hong Kong on September 23, 2009. As China’s largest drug and healthcare product distributor and leading supply chain service provider, the company owns and operates the largest drug distribution network in China. Since 2005, it has ranked first in the annual sales, profits and taxes of Chinese pharmaceutical business for four consecutive years.
Reagent company ranking: Dow (Dow Chemical)
Dow is a diversified chemical company, using the power of science, technology and “human element” to constantly improve. In 2010, Dow’s annual sales volume was 53.7 billion US dollars, with about 50000 employees worldwide, 188 production bases in 35 countries, and more than 5000 products. Dow provides a wide range of products and services to customers in 160 countries and regions around the world, and implements the principle of sustainable development in chemistry and innovation, providing more quality products for various consumer markets, including pure water, food, medicine, paint, packaging, personal care products, construction, home furnishings and automobiles.
Ranking of reagent companies: Ti Xiai (Shanghai) Huacheng Industrial Development Co., Ltd
Ti Xi AI (Shanghai) Huacheng Industrial Development Co., Ltd. Founded in 1894, the company has a long history of 120 years. Its head office is located in Japan. At present, it has many branches in China, India, Britain, the United States and Europe. The company provides more than 22000 kinds of special organic chemical reagents manufactured by TCI for Chinese chemists, and also accepts the Commission synthesis of new organic chemicals and various intermediates.
Reagent company ranking: cofik (Hangzhou cofik Chemical Co., Ltd.)
Hangzhou cofik Chemical Co., Ltd. was registered and established in Hangzhou Xihu District market supervision and Administration Bureau on March 22, 2004. The legal representative is Wu Jian. The business scope of the company includes wholesale (without storage): sodium selenite, 2-pyrrolidone (for details, please refer to the content of the business license of the people’s Republic of China for dangerous chemicals), etc.
Ranking of reagent companies: Merrill (Shanghai meiruier Chemical Technology Co., Ltd.)
Shanghai meiruier Chemical Technology Co., Ltd. was established in 2002, headquartered in Shanghai, China. It is a company specialized in chemical business integrating R & D, production, sales and customized synthesis.
Ranking of reagent companies: adamas (Shanghai adamas Reagent Co., Ltd.)
Shanghai adamas Reagent Co., Ltd. was registered and established in Songjiang Municipal Supervision Bureau on June 23, 2010. The legal representative is Zhang Hua. The business scope of the company includes technology development and technical consultation in the fields of medicine and chemical industry.
Ranking of reagent companies: Nanjing Chemical (Nanjing Chemical Reagent Co., Ltd.)
Nanjing Chemical Reagent Co., Ltd., founded in 1958, is a high-tech enterprise specializing in the R & D, production, sales and technical services of various chemical reagents, pharmaceutical excipients, catalysts and electronic chemicals. It is also the vice president of China Chemical Reagent Industry Association and the chairman unit of Jiangsu chemical reagent Committee.
Chemical reagents are developing towards diversification, high efficiency, green and safety. According to the trend analysis of reagent industry, the unique advantages of prefabricated reagents, such as good reproducibility, high test precision, simple operation process, can shorten the analysis time to the maximum extent and improve the work efficiency; the reaction vessel is miniaturized, and the operator is not required to prepare separately, so as to reduce the contact with dangerous chemicals. These unique advantages meet the needs of the development of chemical reagents.

The company carried out the “August 1st” Army Day activities to comfort veterans

n-Heptane is mainly used as solvent to replace n-hexane in the synthesis of pharmaceutical intermediates.

Junyuan Petroleum Group can find the latest standard prices and wholesale prices of n-Heptane for you. You can also find the price information of industrial market price and wholesale price of n-Heptane. Junyuan Petroleum Group also provides a full range of information, such as the introduction of relevant n-Heptane standard suppliers, main products, pictures, sales volume, etc., so as to provide a comprehensive price reference for your ordering products of n-Heptane.

N-heptane-n-hexane is commonly used in chromatographic analysis, including the purity used in various chromatographic instruments and methods. Purity has no mandatory purity or some data value requirements, such as gas chromatography – stationary liquid, thin layer chromatography, boiling point, polarity, density, etc. When ethanol should have purity, the purity should be upgraded to “pure” requirements and requirements. Or some kind of octane skill data and numerical requirements. N-heptane chromatograph is an ideal chromatograph that connects headspace sampler with various types of gas chromatographs to collect volatile components in liquid or solid samples and directly introduce them into gas chromatograph for separation and detection.

Compared with liquid-liquid extraction and solid phase extraction, n-heptane-n-hexane can not only avoid the loss of volatile compounds in the process of solvent removal, but also reduce the noise caused by CO extraction. It has higher sensitivity and analysis speed, less harm to analysts and environment, and easy to operate. It is a kind of green analytical chemistry ”Analysis means required.
N-heptane-hexane headspace chromatograph can be divided into static headspace analysis, dynamic headspace analysis and headspace solid phase microextraction. The use of n-heptane chromatographic purity can avoid the tedious sample pretreatment process, avoid the interference of impurities brought by organic solvents, and reduce the pollution of chromatographic column and injection port; Headspace chromatography has been widely used in environmental detection (such as volatile halogenated hydrocarbons in drinking water and volatile organic compounds in industrial wastewater), detection of residual organic solvents in drugs, food, forensic science, petrochemical industry, packaging materials, coatings and wine industry analysis.

Analysts generally estimated that US crude oil inventories fell for two consecutive weeks, investors made up for short positions, and international oil prices closed moderately higher. However, Libya’s crude oil production will increase, concerns about uncertain demand remain, and the rise in international oil prices is limited. However, after the European and American crude oil futures closed, American Petroleum Institute data showed that US crude oil inventories increased last week, and international oil prices fell again in the after hours electronic trading system. On Tuesday (September 22), the settlement price of West Texas light oil in October 2020 on the New York Mercantile futures exchange was $39.6, up $0.29, or 0.7%, from the previous trading day, with a trading range of 39-40.02; the settlement price of Brent crude oil in November 2020 on the London intercontinental exchange was $41.72 per barrel, up $0.28, or 0.7%, with a trading range of 41.21-42.2 Yuan.

On Tuesday, West Texas light oil futures on the New York Mercantile Futures Exchange (NYMEX) closed in October 2020. The settlement price of November futures, the main active contract, was $39.80 a barrel, up $0.26 or 0.7% from the previous trading day, with a trading range of 39.19-40.27.
The market is waiting for us oil inventory data. Most analysts estimate that U.S. crude oil inventories will continue to decline, but analysts are divided on their estimates of changes in U.S. crude oil inventories last week. On average, 10 analysts surveyed by the Wall Street Journal estimated that U.S. crude oil inventories would decrease by 1.4 million barrels in the week ending September 18. Seven of the 10 analysts estimated that U.S. crude oil inventories would decrease and 3 million barrels would increase. On average, 10 analysts surveyed by the Wall Street Journal estimated that U.S. gasoline inventories fell by 600000 barrels last week, ranging from a decrease of 3 million barrels to an increase of 2 million barrels; a 1 million barrels increase in distillate stocks, including diesel and heating oil, between a decrease of 2.2 million barrels and an increase of 4.1 million barrels; and the operating rate of US refineries is expected to be 76.4%, up 0.6%. Analysts surveyed by standard & Poor’s group estimated that U.S. crude oil inventories fell by 4 million barrels last week, US gasoline inventories fell by 1.9 million barrels, and distillate oil stocks, including diesel and heating oil, increased by 1.2 million barrels. U.S. crude oil inventories are likely to fall by 2.3 million barrels last week, gasoline inventories may fall by 600000 barrels, distillate oil inventories may increase by 1 million barrels and refinery operating rate may increase by 0.4%, according to a Reuters survey.
After the close of the European and American crude oil futures, the data released by American Petroleum Institute showed that, as of September 18, the US crude oil inventory was 495.2 million barrels, increased by 691000 barrels compared with the previous week, gasoline inventory decreased by 7.735 million barrels, distillate oil inventory decreased by 2.104 million barrels, and crude oil inventory in Cushing area of Oklahoma, which attracted much attention from the market, increased by 298 thousand barrels, and the daily import volume of American crude oil was increased in the same period 88000 barrels less.
The U.S. energy information administration will release weekly oil inventory and demand data at 10:30 a.m. EST on Wednesday, or 10:30 p.m. Beijing time on Wednesday.
Concerns about uncertain demand caused by public health events are an important factor in the fall in oil prices this year, and some European countries are once again taking measures to limit travel to curb the growth of new cases. “Measures to curb the growth of new cases have had a direct and significant impact on oil demand,” said Barbara Lambrecht, an analyst at Commerzbank
Lambrecht believes supply concerns remain and Libya is expected to produce 300000 barrels a day, nearly twice as much as current production. “The recovery in Libya’s crude oil exports will force OPEC and its reduced production allies to offset the increase in Libya’s production by cutting production elsewhere,” Lambrecht said. After all, OPEC’s goal of rebalancing the market and its production reduction allies may be affected by concerns about cooling oil demand. So far, the oil market seems to believe that the allies are willing and able to take action to balance the market. “
Libya’s state oil company said Tuesday that Libya’s tankers will begin shipping crude oil within 72 hours, with crude oil production expected to reach about 260000 barrels a day next week, media sources said.
The market continues to focus on the impact of the Gulf storm on oil production. About 7.12% of U.S. offshore oil production in the Gulf has been shut down, according to the U.S. Department of the interior’s safety and environmental enforcement agency. Tropical storm beta made landfall along the Texas coast late Monday, after oil and gas production in the U.S. Gulf region had been affected by hurricanes Laura and Sally.
The commodity research department of barkle, an investment bank, raised its oil price forecast for 2020. It is estimated that the average price of Brent crude oil and WTI in 2020 will be $43 and $39 per barrel, respectively, up $2 from the previous forecast. It is estimated that the average price of Brent crude oil and WTI in 2021 will be US $53 and US $50 per barrel respectively. Balkley said in the report that we continue to maintain a positive evaluation of oil price forecast for next year, and there is limited space for demand decline because countries’ ability to respond to the threat of the epidemic situation has been strengthened, and OPEC and its allies in production reduction have continued to limit production.