Best China Cas 115-10-6 Propylene Glycol CAS 57-55-6 China Best Price – Chemwin Manufacturer and Factory

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China Cas 115-10-6 Propylene Glycol CAS 57-55-6 China Best Price – Chemwin Detail:

Product Name：Propylene 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.

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With our loaded practical experience and thoughtful solutions, we now have been identified for a trusted provider for numerous intercontinental consumers for China Cas 115-10-6 Propylene Glycol CAS 57-55-6 China Best Price – Chemwin , The product will supply to all over the world, such as: New York, Iran, Latvia, With the development and enlargement of mass clients abroad, now we've set up cooperative relationships with many major brands. We've our own factory and also have many reliable and well-cooperated factories in the field. Adhering to the quality first, customer first, We are provideing high-quality, low-cost items and first-class service to customers. We sincerely hope to establish business relationship with customers from all over the world on the basis of quality, mutually benefit. We welcome OEM projects and designs.

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