1. Basic information

Chemical formula (molecular formula): HO(CH₂CH₂O)_nH

Boiling point: >250℃

Flash point: 270℃

Density: 1.125

Solubility: H2O: 50 mg/mL

2. Stability

(1) If used and stored in accordance with specifications, it will not decompose and avoid contact with oxides. Appearance (20℃) Clear liquid, white paste, smell almost odorless, Solubility (20℃)

It is miscible with water, ethanol and acetone, but insoluble in alkanes. Density (40℃)/(g/cm3) is about 1.108～1.115 Viscosity/cSt, lower than PEG800, about 30～100 (40℃)PEG1500, about 60(70) °C)

(2) After skin contact or splashing, rinse with plenty of water; if the product accidentally gets into the eyes, rinse with plenty of water, and ask a doctor if necessary; you can wear protective equipment, such as protective gloves, glasses, etc.; if you accidentally inhale or If swallowed by mistake, move the patient to a well-ventilated place and seek help from a doctor.

3. Chemical properties: 

It has the chemical properties of alcohol and can undergo esterification reaction with fatty acids to form esters. Oxidation occurs when heated in air. The ether bond breaks above 300°C. It is gradually oxidized by air at room temperature, and the larger the molecular weight, the greater the tendency to be oxidized. Antioxidants such as hydroquinone and hydroxyanisole can be added to stabilize it.

4. Application recommendation

PEG-200 can be used as a medium for organic synthesis and a heat carrier with higher requirements. It can be used as a humectant, inorganic salt solubilizer, and viscosity regulator in the daily chemical industry; it can be used as a softener and antistatic agent in the textile industry. ; Used as a wetting agent in the papermaking and pesticide industries.

PEG-400 and PEG-600 are used as bases for medicines and cosmetics, lubricants and wetting agents in the rubber industry and textile industry.

PEG-1000, used as a matrix or lubricant and softener in the pharmaceutical, textile and cosmetic industries; used as a dispersant in the coating industry to improve the water dispersibility and flexibility of the resin; used as a dispersant in the rubber industry to promote Vulcanization, used as a dispersant for carbon black fillers.

PEG-2000 is used as a metal processing mold agent, a lubricant and cutting fluid for metal wire drawing, stamping or forming, grinding and cooling lubricating polishing agent, welding agent, etc.

PEG-4000 and PEG-6000 are used as substrates in the production of pharmaceuticals and cosmetics industries to adjust viscosity and melting point; used as a finishing agent in the paper industry to increase the gloss and smoothness of paper; as an additive in the rubber industry to increase Lubricity and plasticity of rubber products; used as antistatic agent and lubricant in textile industry.

PEG8000 is used as a matrix in the production of pharmaceuticals and cosmetics industries to adjust viscosity and melting point; as a lubricant and coolant in the rubber and metal processing industries, as a dispersant and emulsifier in the industrial production of pesticides and pigments; Used as antistatic agent and lubricant in textile industry.