Oxidized polyethylene polyethylene-glycol
- EASTCHEM
- China
- 15~20 days
- 25322-68-3
Polyethylene glycol (PEG) has strong water absorption and can absorb moisture from the air under normal temperature conditions. The liquid can be miscible with water in any proportion. When the temperature rises, any fraction of solid polyethylene glycol will be It can be miscible with water in any proportion. When the temperature reaches the boiling point of water, the polymer will precipitate. The precipitation temperature depends on the molecular weight and concentration of the polymer. Polyethylene glycol (PEG) is a nonionic polymer that is stable under normal conditions and can oxidize with oxygen in the air at temperatures of 120°C or higher. It is protected by inert gases such as carbon dioxide or nitrogen. There is no change at 200~240℃. When it rises to about 300℃, the molecular links break and degrade.
Product introduction
Polyethylene glycol (PEG), also known as polyethylene glycol ether, CAS No. 25322-68-3, has a chemical structural formula of HO (CH2CH2O)nH. It is made from ethylene oxide and water or ethylene glycol as raw materials through a step-by-step process. It is prepared by addition reaction, and its raw materials are mainly derived from petroleum products.
Product specification
Test items | Analyticalmethods | Standard | Result |
Appearance（25℃） | Current EP | Clear,viscous,colourless oralmost colourless,hyg | Conforms |
Identification | Current EP | A | Conforms |
Current EP | B | Conforms | |
Current EP | C | Conforms | |
Appearance of solution | Current EP | Meet requirements | Conforms |
Completeness and Color ofSolution | Current USP | Meet requirements | Conforms |
Acidity or alkalinity | Current EP | Meet requirements | Conforms |
pH(5% in water) | Current USP | 4.5~7.5 | 6.1 |
Average Molecular Weight | Current USP | 380~420 | 419 |
Viscosity(20℃,m Pa·S) | Current EP | 105~130 | 124 |
Viscosity(98.9℃,cst) | Current USP | 6.8~8.0 | 7.6 |
Hydroxyl value | Current EP | 264~300 | 268 |
Reducing substance | Current EP | Meet requirements | Conforms |
Ethylene Glycol andDiethylene Glycol(%) | Current USP | ≤0.25 | 0.05 |
Ethylene Glycol andDiethylene Glycol(%) | Current EP | ≤0.4 | 0.05 |
Formaldehyde(ppm) | Current EP | ≤15 | Conforms |
Ethylene oxide(ppm) | Current EP | ≤1 | ＜0.04 |
Dioxan(ppm) | Current EP | ≤10 | ＜ 2 . 5 9 |
Free Ethylene Oxide(μg/g) | Current USP | ≤10 | ＜0.04 |
1,4-Dioxane(μg/g) | Current USP | ≤10 | ＜ 2 . 5 9 |
Water(%) | Current EP | ≤2.0 | 0.05 |
Sulfated ash(%) | Current EP | ≤0.2 | ≤0.2 |
Residue on Ignition(%) | Current USP | ≤0.1 | ≤0.1 |
Heavy Metals(ppm) | Current USP | ≤5 | Conforms |
Grade | Pharmaceutical grade | ||
Conclusion | According to Current EP、Current USP standard，the results meet therequirements. | ||
Product application
Polyethylene glycol has a compatibilizing effect and is suitable for the manufacture of various high-quality cosmetics. Polyethylene glycol stearic acid synthesizes polyethylene glycol distearate series products, which are widely used in the daily chemical industry.
In the cosmetics industry, polyethylene glycol can be used in oil-free cosmetics, shampoos and hair conditioners, sunscreens, foot odor removal aerosols, skin creams, antiseptic ointments, beard removal creams, acne creams, and medicinal skin lotions. , facial cleanser, facial cleanser and soap, hand lotion, lip balm, etc. In cosmetic formulas, adding polyethylene glycol can improve the skin's ability to absorb additives.
Polyethylene glycol (4000~8000) is used as a neutral ingredient in cosmetic formulas. It has excellent water solubility, non-volatility, and non-greasy properties, and can produce light-colored products. The consistency of PEG (polyethylene glycol) increases as the relative molecular weight increases. Applicable products can be formulated according to different requirements. Polyethylene glycol can be added to creams, baths, and hand creams to lubricate the skin without causing irritation. Nature of bonding.
Skin care creams that are compounded of polyethylene glycol and loofah have dual functions of curative effect and beauty. Adding polyethylene glycol to all cosmetic formulas has the advantages of good stability and not destroying organic microbial nutrients.
Polyethylene glycol can also be used as a non-volatile carrier for flavoring agents, a neutral fixing agent for flavors, an evaporation retardant for nail polish removers, and a solubilizing agent in cosmetic formulations.
PEG is used in toothpaste formulations to adjust consistency and extend shelf life. In addition, PEG can also be used as a consistency adjuster for shampoos, shaving agents and hair removers, non-greasy lubricants and antistatic agents for shaving agents, bathroom cleaners, denture cleaners, etc. Polyethylene glycol can also be used as an emulsifying aid and plasticizer in soap making, so that it can retain the fragrance of the soap, prevent it from drying into blocks, have a smooth surface, and improve foaming properties.
Packaging & Storage
1. Polyethylene glycol substances should be avoided from being mixed with flammable, explosive and other dangerous goods during transportation;
2. The packaging box must be marked with the name, concentration, molecular weight and other information of polyethylene glycol;
3. Hazard signs and labels should be placed on the exterior and interior of the vehicle so that safety personnel can handle them promptly when needed.
About us
Shenyang East Chemical Science-Tech Co., Ltd. was established in 2012, focusing on the development and sales of fine material chemicals.BDO and its derivatives, including GBL, NMP, THF; Lithium ion battery material; Fine chemical intermediate; Hydrocarbon environmental organic solvent and additive in concrete (surfactant) for electronic industry, pharmaceutical industry, building industry, chemical industry, pesticide, paint, printing ink, paint and other industries in the integrated circuit (IC)/liquid crystal display (LCD)/lithium ion battery/insulation materials in areas such as providing differentiated products and solutions based on science and technology.
Company with rich professional knowledge, serving lithium ion battery, integrated circuit (IC), liquid crystal display (LCD), insulation materials, medicine, construction, industrial cleaning, pesticide and other industries, the products are sold to China, East Asia, South America, Eastern Europe, the Middle East, North America, Southeast Asia and dozens of other countries.
East chemical to global layout combined with a professional and leading business positioning, designed to be customer oriented, professional and efficient material chemical company, through our material chemistry specialty, deep cooperation with customers, provide differentiated products and solutions based on science and technology, to create a better world a sustainable future.