Anhui Eapearl Chemical Co., Ltd
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99.5% Purity USP Grade Industrial Grade Propylene Glycol

— Propylene Glycol, Mono Propylene Glycol, Propylene Glycol Methyl Ether
Product Category: Chemical Alcohol
Sales Method: Export, Manufacture, Wholesale, OEM/ODM, Service
Payment Term: T/T, L/C, M/T, D/D, Check, D/P sight, Western Union
Trade Term (Incoterms): EXW, FCA, FAS, FOB, CFR, CIF, CPT, CIP, DAT, DAP, DDP
Min. Order Unit Price
1 Ton USD 1265 / Ton
Contact Info

Mr.Xu Yingqun

Address: China (mainland) Anhui Tongling,358 South Huaihe Road, Tongling City, Anhui Province, P. R. C

Product Detail

Product Attribute:

  • China (mainland) More >
  • Eapearl
  • 08/01/2017
  • 08/02/2017

Product Content Description:

Anhui Eapearl Chemical Co., Ltd is located in the beautiful ~Ancient Bronze Capital of China in anhui province, China.
It is a comprehensive enterprise that Integrates research, manufacturing, and trade. It is specialized in production
and research and development of fine chemical, pharmaceutical intermedi-ates, API ect. It has there chemical bases,
one research institute and owns self-management import and export, the headquarters is located in Hong Kong
China. Anhui eapearl chemical Co., Ltd has the close relationship with many strong chemical companies at home
and at abroad, and always maintain favorable business cooperation and good development space with them. 
Anhui Eapearl Chemical Co., Ltd has rich technical competence, advanced production techniques, perfect Inspection
test and strict Quality control system. 1t has built cooperative relationships with many colleges and research institutes
for researching and developing new products to meet various needs o f customers. With satisfying service,
Eapearl lays the great emphasis on customer' S benefits and company' S credit. 
Anhui Eapearl Chemical Co., Ltd will carry on the creed of "credible and enterprising, all win in harmony" to cooperate
with old and new clients globally with high quality products, reasonable price and pure-hearted service to go forward.
Hand in hand for win-win!

 

 

 

 

 

Physical and 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. 

Figure 1 the molecular structure of propylene glycol.
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.

 

Medicinal property and application Propylene glycol has good solubility and less toxicity and irritation, and is widely used as solvents, extraction solvents and preservatives for injections (eg. intramuscular injections, intravenous injections) and non-injectable pharmaceutical preparations (such as oral liquid, ophthalmic preparations, otic preparations, dental preparations, rectovaginal preparations, transdermal preparations, etc.). It is better than glycerol solvent and can dissolve many substances such as corticosteroids (sex hormone), chloramphenicol, sulfonamides, reserpine, quinidine, corticosterone acetate, tetrahydropalmatine sulfate, mechlorethamine hydrochloride, vitamin A, vitamin D, many volatile oils, most of the alkaloids and many local anesthetics. 
Propylene glycol is similar to ethanol when used as a bacteriostatic agent, and its efficacy to inhibit mold is similar to glycerin and is slightly lower than that of ethanol. Propylene glycol is commonly used as a plasticizer for the aqueous film coating materials. Its mixture with equal amounts of water can delay the hydrolysis of certain drugs, and increase the stability of the preparation product. It is used as an antimicrobial preservative in 15% to 30% propylene glycol solution and semi-solid formulation, as humectants in about 15% propylene glycol topical formulation, and as solvent and co-solvent in 10% to 30% propylene glycol aerosol solvent, 10% to 25 % propylene glycol oral solution, 10% to 60% injectable formulation and 5% to 80% topical formulation.
[Stability and storage condition] It is very stable at room temperature, but is oxidized when left open at high temperatures (above 280 °C); has a chemical stability after mixing with 95% ethanol or water; can be sterilized by autoclaving or sterile filtration. Propylene glycol has hygroscopicity, and should be positioned at cool and dry place and stored in dark airtight container.
[Incompatibility] It has incompatibility with some oxidants (such as potassium permanganate).

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