Propylene glycol

Propylene glycol

CAS No.: 57-55-6
Molecular Formula: C3H8O2
Molecular Weight: 76.09
Phone :+8617860115079
WhatsApp :+8617860115079
Email :hualuliam@sdhualuchem.com
90c07ac899b1500ecead6a1c8c56591c
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
Qualification Certificate
  • 微信图片_2026-04-22_130717_131
  • 微信图片_2026-04-22_130720_178
  • 微信图片_2026-04-22_130722_820
  • 微信图片_2026-04-22_130725_370
  • 微信图片_2026-04-22_130728_434
  • 微信图片_2026-04-22_130730_803
  • 微信图片_2026-04-22_130733_947
FAQ

Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.


Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.


Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.


Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

Contact Us
Submit
Recommendation