Short Description:


Product Detail

Product Tags

Related Video

Feedback (2)

Our improvement depends on the superior equipment, excellent talents and continuously strengthened technology forces for Cas 115-10-6 Supply , Cas 6422-86-2 , China Isopropyl Alcohol , We acquire high-quality as the foundation of our results. Thus, we focus over the manufacture on the finest top quality goods. A strict quality management system has been created to guarantee the caliber of the merchandise.
Methylene Diphenyl Diisocyanate Distributors Propylene Glycol CAS 57-55-6 China Best Price – Chemwin Detail:

Product NamePropylene glycol

Molecular format:C3H8O2

CAS No:57-55-6

Product molecular structure:

Propylene glycol

Specification:

Item

Unit

Value

Purity

%

99.5 min

Color

APHA

10max

Water Content

%

0.05max

Appearance

-

Colorless transparent liquid,less smell

 

Chemical Properties

Propylene glycol is scientifically named as “1,2-propanediol”, and has a chemical formula of CH3CHOHCH2OH and a molecular weight of 76.10. There is a chiral carbon atom in the molecule. Its racemate is a hygroscopic viscous liquid and is slightly spicy. It has a specific gravity of 1.036 (25/4 °C), a freezing point of-59 °C, and a boiling point of 188.2 °C, respectively 83.2 °C (1,333 Pa). It is miscible with water, acetone, ethyl acetate and chloroform, and is soluble in ether. It is soluble in many essential oils, but is not miscible with petroleum ether and paraffin oil. It is relatively stable to heat and light, and is more stable at low temperatures. Its L-isomer has a boiling point of 187 to 189 °C and a specific optical rotation [α] of D20-15.0°. It can be oxidized at high temperatures to propionaldehyde, lactic acid, pyruvic acid and acetic acid.

Propylene glycol is a diol having the general nature of the alcohol. It can react with inorganic and organic acids to generate mono-or di-esters. It reacts with propylene oxide to generate ether, with hydrogen halide to generate halohydrin, and with acetaldehyde to generate methyl dioxolane.

 

Application:

Propylene glycol is used for similar applications as other glycols.
Propylene glycol is an important raw material for unsaturated polyester, epoxy resin, and polyurethane resin. The use amount in this area accounts for about 45% of the total consumption of propylene glycol. Such unsaturated polyester is used extensively for reinforced plastics and surface coatings. Propylene glycol is excellent in viscosity and hygroscopicity and is non-toxic, and thus is widely used as hygroscopic agent, antifreeze, lubricants and solvents in the food, pharmaceutical and cosmetic industry. In the food industry, propylene glycol reacts with fatty acid to give propylene ester of fatty acids, and is mainly used as food emulsifier; Propylene glycol is a good solvent for flavorings and pigments. Propylene glycol is commonly used as solvents, softeners and excipients, etc. in the pharmaceutical industry for the manufacture of various types of ointments and salves. Propylene glycol is also used as a solvent and a softener for cosmetic since it has good mutual solubility with various spices. Propylene glycol is also used as tobacco moisturizing agents, antifungal agents, food processing equipment lubricants and solvents for food marking ink. Aqueous solution of propylene glycol is an effective anti-freeze agent.


Product detail pictures:

Methylene Diphenyl Diisocyanate Distributors Propylene Glycol CAS 57-55-6 China Best Price – Chemwin detail pictures


Related Product Guide:

As for competitive charges, we believe that you will be searching far and wide for anything that can beat us. We will state with absolute certainty that for such excellent at such charges we have been the lowest around for Methylene Diphenyl Diisocyanate Distributors Propylene Glycol CAS 57-55-6 China Best Price – Chemwin , The product will supply to all over the world, such as: South Korea, Netherlands, Canberra, Now the competition in this field is very fierce; but we will still offer best quality, reasonable price and most considerate service in an endeavor to achieve win-win goal. Change for the better! is our slogan, which means A better world is before us, so let's enjoy it! Change for the better! Are you ready?
  • Good quality, reasonable prices, rich variety and perfect after-sales service, it's nice!
    5 Stars By Ruby from Chicago - 2018.12.11 14:13
    The company has rich resources, advanced machinery, experienced workers and excellent services, hope you keep improving and perfecting your products and service, wish you better!
    5 Stars By Christina from Sweden - 2017.08.21 14:13
    Write your message here and send it to us