Products

Propylene glycol

Propylene glycol

CAS No.: 57-55-6
Molecular Formula: C3H8O2
Molecular Weight: 76.09
Promotion Season Now in Store and Free Sample for Testing with Factory Price.

product description

Propylene Glycol USP/EP/FCC (CAS 57-55-6) is a high-purity (>99.5%) multi-functional liquid solvent and humectant compliant with global pharmacopeia standards. As a USP-grade pharmaceutical excipient, it serves as low-endotoxin (≤0.5EU/ml) injection solvent; in cosmetics, it acts as OECD 439-certified low-irritant humectant; for food processing, FCC-grade PG functions as antifreeze carrier (21 CFR 184.1666); while industrial applications leverage its low-toxicity antifreeze properties (-59°C, ASTM D1384). Technical documentation available.


Chemical Properties

PropertyValue
Melting point-60 °C (lit.)
Boiling point187 °C (lit.)
Density1.036 g/mL at 25 °C (lit.)
Vapor density2.62 (vs air)
Vapor pressure0.08 mm Hg ( 20 °C)
Refractive indexn20/D1.432(lit.)
FEMA2940 | PROPYLENE GLYCOL
Fp225 °F
Storage temp.Store at +5°C to +30°C.
SolubilityChloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
Pka14.49±0.20(Predicted)
FormViscous Liquid
ColorAPHA: ≤10
Specific Gravity1.038 (20/20℃)1.036~1.040
PH6-8 (100g/l, H2O, 20℃)
Odorat 100.00 %. odorless very slight alcoholic
Odor Typeodorless
Optical Rotation-0.11° (C=1.00g/100ml, CHCL3)
biological sourcesynthetic
explosive limit2.4-17.4%(V)
Water Solubilitymiscible
SensitiveHygroscopic
Merck14,7855
JECFA Number925
BRN1340498
Dielectric constant32.0
InChIKeyDNIAPMSPPWPWGF-UHFFFAOYSA-N
LogP-0.92
Surface tension35.44mN/m at 298.15K
CAS DataBase Reference57-55-6(CAS DataBase Reference)
NIST Chemistry ReferencePropylene glycol(57-55-6)
EPA Substance Registry SystemPropylene glycol (57-55-6)


Safety Information

PropertyValue
Safety Statements24/25
WGK Germany1
RTECSTY2000000
Autoignition Temperature779 °F
TSCAYes
HS Code29053200
Hazardous Substances Data57-55-6(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 19400 - 36000 mg/kg LD50 dermal Rabbit 20800 mg/kg


Product Usage

Propylene glycol is a versatile, colorless, and odorless liquid widely utilized for its excellent solvent, humectant, and preservative properties. In the food and beverage industry, it serves as a safe carrier for flavors and colors, and as a humectant to maintain moisture in baked goods and dairy products. Its role in cosmetics and personal care is equally vital, acting as a moisture-retaining agent in lotions, shampoos, and toothpastes to ensure smooth application and skin hydration. In the pharmaceutical sector, it is used as a solvent for injectable and oral medications to enhance stability and absorption. Additionally, it has significant industrial applications, notably as a non-toxic antifreeze and heat-transfer fluid in HVAC systems, as well as a key raw material for manufacturing high-performance unsaturated polyester resins.

Factory Showcase

拼图_美图设计室-(1)

Quality Control Lab

实验室

Shipping And Transportation

Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

拼图_美图设计室

FAQ

Q:What about your price? 
A:Our price is very competitive because we are a factory. Feel free to contact us if you are interested in our products. 

 

Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.

 

Q:How about the delivery time? 
A:Within 3-15 days after we confirm you requirement. 

 

Q:What is your terms of payment ?
A:T/T, Cash, Western Union are all accepted if you have other payment,please contact me. 

 

Q: Do you provide samples? 
A:Yes,we could offer the sample for you to test but please pay freight fee.

Contact Us

Submit