Archives March 2023

The price of EPS products in the Chinese market today is CNY10,122.8/MT, down -0.29% from the previous trading day

Pentane is the most common expansion agent in EPS production. Low concentration of pentane can be trapped during production, inside the closed cells of EPS. By the end of the production cycle, EPS products may still contain 1-2% of Pentane by weight.

What is EPS foam made of?
WHAT IS EPS? Expanded Polystyrene (EPS) is a rigid, closed cell, thermoplastic foam material produced from solid beads of polystyrene, which is polymerised from styrene monomer and contains an expansion gas (pentane) dissolved within the polystyrene bead.

type of foam is EPS?
expanded polystyrene foam
The foam that you formerly knew as styrofoam is actually expanded polystyrene foam or EPS. This material is made from polystyrene, a plastic that’s often used to make clear products like food packaging or lab equipment.

What are the different types of polystyrene?

What Are The Different Types of Polystyrene? Three major types of polystyrene include polystyrene foam, regular polystyrene plastic, and polystyrene film. Amongst the different types of foam are expanded polystyrene (EPS) and extruded polystyrene (XPS).

Polyurethane foam is widely used in construction, refrigeration, piping and other fields due to its low density, good thermal insulation, low water absorption, low toxicity, and good processability. The blowing agent is an important auxiliary agent for the production of polyurethane foam plastics. Since the second-generation blowing agent HCFC-141b has an ODP value of 0.11 and a GWP value of 725, it has a great impact on the ozone layer and the greenhouse effect, so it can only be used as a transitional agent. use of sex substitutes. According to China’s polyurethane foam industry HCFC-141b phase-out plan (second phase), the polyurethane foam industry will gradually reduce HCFC-141b consumption based on the results achieved in the first phase, and will achieve industry-wide phase-out by the end of 2025. At present, the commonly used substitutes for HCFC-141b blowing agent mainly include pentane, water, hydrofluorocarbon (HFC), liquid carbon dioxide, hydrofluoroolefin (HFO) and methyl formate. Among them, pentane is widely used due to its advantages of environmental protection, low price, and easy availability. However, pentane is flammable and explosive, and is a dangerous chemical. The use of this kind of blowing agent requires safety renovation of production equipment and workshops. Although the initial investment of pentane foaming replacement technology is relatively high, in the long run, the comprehensive economic benefits are obvious, and it is an ideal substitute for HCFC-141b.

◎Overview of China’s LNG market
As of March 8, the average price of LNG received nationwide was 5,877 yuan/ton, a decrease of 9.4% from last week and a year-on-year decrease of 36.41%. The price of consumer land fell. Due to the weak intention of receiving goods from downstream, traders lowered the price to ship goods, which drove the price of consumer land to fall. On that day, the total inventory of domestic LNG plants was 330,100 tons, an increase of 5.3% from the previous period. Competition in the upstream market continues, receiving stations continue to cut prices to seize the market, and domestic LNG factories have increased inventories.

US Dollar to Chinese Yuan Exchange Rate

US Dollar to Chinese Yuan Exchange Rate is at a current level of 6.970, up from 6.865 the previous market day and up from 6.317 one year ago.

Liquefied Natural Gas LNG (Liquefied Natural Gas) LNG is liquefied natural gas, most of which is methane, and contains a small amount of ethane. LNG is actually the end product of natural gas processing, because natural gas is mainly pressurized and fractionated in the process of processing. The component with the lowest boiling point in natural gas is methane (-161.5°C). LNG is just the product of cooling natural gas to -162°C. It is almost pure methane, and the methane has become liquid at this time. LNG is currently the main form of international natural gas transactions in the world. Natural gas giants Qatar, Australia, Malaysia, and the United States all export natural gas to target markets in the form of LNG. The major consumers of LNG are the three major economies in Asia, China, Japan and South Korea. These three countries account for 55.7% of the global LNG consumption market, of which Japan accounts for 25.4%, China accounts for 16.7%, and South Korea accounts for 13.6% (2018 data ), compared with 316 million tons of LNG global trading volume in the same year, the highest in history.

Types of Pentane and Pentane Blowing Agents

Pentanes include n-pentane, isopentane and cyclopentane. The molecular formula is C5H12 and the molecular weight is 72.15. Cyclopentane, also known as “pentamethylene”, is a cycloalkane with the molecular formula C5H10. Molecular weight 70.13. flammable liquid.

The high-purity n-pentane produced by Junyuan Petroleum Group has a purity of up to 99.5%, a n-butane content of less than 0.01%, an isopentane content of less than 0.2%, and a C6 content of less than 0.3%.

N-pentane and isopentane are separated from oilfield light hydrocarbons through high-efficiency rectification. N-pentane can be used as a desorbing agent in the dewaxing process of molecular sieves, and it can be used as a high-efficiency blowing agent for expandable polystyrene after blending with isopentane in different proportions to meet the requirements of different foaming degrees. It can be mixed with cyclopentane, etc. as a polyurethane foaming agent. Isopentane can be used as blowing agent for expandable polystyrene, foaming agent for polyurethane foam system, deasphalting solvent, solvent for catalyst in polyethylene production, etc. Generally blended with cyclopentane. Used as rigid polyurethane foam blowing agent. Cyclopentane (molecular formula C5H10) is a saturated hydrocarbon with a melting point of -94.4°C and a boiling point of 49.3°C. It is stable and insoluble in water, but soluble in most organic solvents such as ethanol, ether, benzene, carbon tetrachloride, and acetone. It is used as a solvent, as a foaming agent (instead of Freon) in the preparation of polyurethane foam, and as a standard substance for chromatographic analysis.

CAS: 287-92-3
Molecular formula: C5H10
Molecular weight: 70.13
Boiling point: 50℃
Melting point: -94-49℃
Chinese name: cyclopentane, pentamethylene, cyclopentamethylene
English name: ,Cyclopentane, pentamethylene, Cyclopentane,HPLC Grade, Cyclopentan, Cyclopcntan
Nature description:
Colorless liquid, melting point -93.9°C, boiling point 49.26°C, relative density 0.7460 (20/4°C), refractive index 1.4068, flash point -37°C. It can be miscible with organic solvents such as alcohol and ether, but insoluble in water.
production method:
Cyclopentane is a component of petroleum ether with a boiling point range of 30-60°C, the content is generally 5%-10%, and it is distilled at atmospheric pressure with a reflux ratio of 60:1 in a tower with a height of 8m. Isopentane and n-pentane can be further fractionated to obtain cyclopentane with a purity of more than 98%. Cyclopentane can also be prepared by reduction of cyclopentanone or catalytic hydrogenation of cyclopentadiene.
Uses:
It is used as a solvent for solution polymerization of polyisoprene rubber and a solvent for cellulose ether, as a substitute for freon for insulation materials in refrigerators and freezers and as a foaming agent for other hard PU foams, and as a reference material for chromatographic analysis.
The pentane foaming agent series products produced by Junyuan Petroleum Group are mainly composed of n-pentane, isopentane and cyclopentane. The total content of pentane is over 98%. It can be blended with cyclopentane into about 30 different types of products, which are mainly used as plastic foaming agents, and can also be used as industrial solvents, extractants and chemical raw materials.

CAS: 73513-42-5
Molecular Formula: C6H14
Molecular Weight (g/mol): 86.18
MDL Number: MFCD00009406
InChI Key: AFABGHUZZDYHJO-UHFFFAOYSA-NShow Less
Synonym: isohexane, pentane, 2-methyl, 2-methylpentan, 2-methyl pentane, dimethylpropylmethane, 1,1-dimethylbutane, iso-hexane, methyl pentane, unii-49ib0u6mld, 2-methyl-pentaneShow Less
IUPAC Name: 2-methylpentane
SMILES: CCCC(C)C

Specifications
Color: Colorless
UN Number: 1208
Formula Weight: 86.18
Percent Purity: ≥98.0% (GC) and
Quantity: 16MT/ISO Tank container
Physical Form: Clear Liquid at 20°C
Chemical Name or Material: Isohexane (mixture of isomeric branched chain Hexanes)

Chemical News reported on March 08: The price of Isopentane (CAS# 78-78-4, purity>95, water<20ppm, sulfur<1ppm, acid value<2ppm) in the Chinese market is stable, with a price of CNY10,000/MT, mainly used in polyethylene plants and LNG field.

polyethylene plant, polyethylene manufacturing, polymer plant, HDPE plant, polyethylene production, Pentane, Isopentane, methylbutane, 2-methylbutane, ethyldimethylethane, isoamylhydride

The Price of n-Hexane in the Chinese Market Today- March 07, 2023
Market Price: CNY/MT
n-Hexane Purity: 60%
Currency: CNY
Mainstream Price: 9,400
Highest Price: 9,500
Lowest Price 9,300
Average Price This Week: ▼9,400
Change Value : ▼-300
Change: ▼-3.09%
Average Price This Month: ▼9,625
Change Value: ▼-25%
Change: ▼-0.26%
Data Date: 03/07/2023

US Dollar to Chinese Yuan Exchange Rate
US Dollar to Chinese Yuan Exchange Rate is at a current level of 6.910, up from 6.865 the previous market day and up from 6.317 one year ago.

Chemistry Table
CAS Number: 110-54-3
Molecular Formula: C6H14
Formula Weight: 86.18
Synonyms: n-Hexane, Hexyl hydride, Skellysolve B, Gettysolve-B, Hexan, Hexanes, Dipropyl, Normal hexane, n-Hexan
Grade: High Purity Grade
Percent Purity: 60-99%
Chemical Name or Material: Hexane
UN Number: 1208
Solubility Information: Miscible with alcohol,chloroform,acetone and ether.
Formula Weight: 86.18
Density: 0.659
Boiling Point: 69°C
Quantity: 50 mL
Flash Point: −23°C (−9°F)
Odor: Weak, Characteristic
Packaging Type: ISO Tank/Steel Drum
Payment Terms: T/T, L/C
Manufacturer: Junyuan Petroleum Group
Description
n-Hexane is used as a solvent to extract edible oils from seed and vegetable crops. Commercial grades of hexane are used as solvents for glues, varnishes, and inks, cleaning agent (degreaser) in the printing industry, liquid in low temperature thermometers. Other uses are as fuels and fuel additives, intermediates and laboratory chemicals.
Applications
n-Hexane is used as a solvent to extract edible oils from seed and vegetable crops. Commercial grades of hexane are used as solvents for glues, varnishes, and inks, cleaning agent (degreaser) in the printing industry, liquid in low temperature thermometers. Other uses are as fuels and fuel additives, intermediates and laboratory chemicals.
Solubility
Miscible with alcohol, chloroform, acetone and ether.
Notes
Incompatible with dinitrogen tetraoxide. Store in a cool and dry environment.

As the one of the largest manufacturer of specialty solvents, Junyuan Petroleum Group is equipped to handle chemicals shipping in any required form, including bulk, steel drums, containers, ISO tank containers. With exclusive rates from many of the worlds major shipping lines and ISO tank owners, we are able to provide competitive and reliable deliveries of solvents and chemicals on CFR and CIF terms.

Junyuan Petroleum Group is committed to being a premier solvent manufacturer of pentanes, hexanes, heptanes and butanes to our customers. If you would like to know more about a product or technology, or how we can help you be more successful, please contact us. Your inquiry is important to us, email us at info@junyuanpetroleumgroup.com to request technical information and documentation about particular products, ask questions, or receive a catalog.

The market price of dichloromethane in the Chinese market today 03.07.2023 is CNY 2,800/MT, which is an increase of CNY 30/MT from the previous day yesterday 03.06.2023, and the price has increased by 1.08%.

Dichloromethane
Synonym(s): Methylene chloride
Empirical Formula (Hill Notation): CH2Cl2
CAS Number: 75-09-2
Molecular Weight: 84.93
Beilstein: 1730800
EC Number: 200-838-9
MDL number: MFCD00000881

General Description
In the solid-phase synthesis of oligonucleotides, liquid reagents are used in each step of the synthesis cycle. Overall synthesis performance, and therefore total product yield and purity of the crude oligonucleotide, is highly dependent on the chemical purity of the monomers and the supporting liquid reagents and other solvents like ethylacetate, dichloromethane, and dimethylformadine.Dichloromethane is an ordinary organic solvent frequently utilized in peptide synthesis. Under normal circumstances, DCM maintains highly stable and will not cause significant side reactions in peptide synthesis. It is a chlorinated organic solvent that is susceptible to degradation with time. This can be suppressed by adding amylene as a stabilizer.Dichloromethane has been tested as a solvent medium for the dipyridine-chromium(VI) oxide. Solubility was reported to be 12.5g/100ml. The role of the quantity of TiO2 loading on activated carbon support employed in the photodecomposition of dichloromethane has been investigated.

Application
Dichloromethane may be used as a solvent for the preparation of stock solutions of carotenoids. It may be employed as a solvent in the synthesis of polylactide-based (PLA) thin films. IT is also suitable as a solvent for the oxidation of primary and secondary alcohols using dipyridine-chromium(VI) oxide.

The price of Isohexane in the Chinese market today 03.06.2023 is CNY 9,000/MT, and the price remains unchanged from the previous day 03.05.2023.

US Dollar to Chinese Yuan Exchange Rate
US Dollar to Chinese Yuan Exchange Rate is at a current level of 6.910, up from 6.865 the previous market day and up from 6.317 one year ago.

CAS: 73513-42-5
Molecular Formula: C6H14
Molecular Weight (g/mol): 86.18
MDL Number: MFCD00009406
InChI Key: AFABGHUZZDYHJO-UHFFFAOYSA-NShow Less
Synonym: isohexane, pentane, 2-methyl, 2-methylpentan, 2-methyl pentane, dimethylpropylmethane, 1,1-dimethylbutane, iso-hexane, methyl pentane, unii-49ib0u6mld, 2-methyl-pentaneShow Less
IUPAC Name: 2-methylpentane
SMILES: CCCC(C)C

Specifications
Color: Colorless
UN Number: 1208
Formula Weight: 86.18
Percent Purity: ≥99.0% (GC)
Quantity: 16MT/ISO Tank container
Physical Form: Clear Liquid at 20°C
Chemical Name or Material: Isohexane (mixture of isomeric branched chain Hexanes)

China Market Trends: As of press time March 06, 2023, the mainstream transaction price of straight run naphtha in Shandong area is CNY 8,188/MT, -28, and the mainstream transaction price of hydrogenated naphtha is CNY 8,268/MT, -82. The international crude oil is fluctuating and finishing, the profit of the reforming unit of the refinery has dropped significantly compared with the previous day 03.05.2023, the market demand is limited, the related gasoline, diesel and gasoline components are operating weakly, and some refineries have cut prices for shipments. Today, the naphtha market in Shandong fell slightly.
March 06, 2023 USD TO CNY TODAY
https://longforecast.com/chinese-yuan-forecast-2017-2018-2019-2020-2021-usd-to-rmb-and-rmb-to-usd
Naphtha is an important raw material for the production of pentane, hexane and heptane series products. If you need to purchase these hydrocarbon end products, please feel free to contact Junyuan Petroleum Group.