Propylene glycol CAS 57-55-6

Propylene glycol is a colourless, odourless, slightly sweet viscous liquid with good hygroscopicity and solubility.It is widely used in food, medicine, cosmetics and other fields as humectant, solvent or stabiliser; it is used in industry for synthetic resin, antifreeze and so on.Its safety is high, but it should be noted that high concentration contact may cause slight irritation.

Availability:



Inquire

Model:
57-55-6
Brand:
Futurechemical
Code:
57-55-6

Product Description

Propylene glycol Basic information
Product Name:	Propylene glycol
CAS:	57-55-6
MF:	C3H8O2
MW:	76.09
EINECS:	200-338-0
Product Categories:	Medicine grade;INORGANIC & ORGANIC CHEMICALS;57-55-6
Mol File:	57-55-6.mol
Propylene glycol Chemical Properties
Melting point	-60 °C (lit.)
Boiling point	187 °C (lit.)
density	1.036 g/mL at 25 °C (lit.)
vapor density	2.62 (vs air)
vapor pressure	0.08 mm Hg ( 20 °C)
refractive index	n20/D 1.432(lit.)
FEMA	2940 \| PROPYLENE GLYCOL
Fp	225 °F
storage temp.	Store at +5°C to +30°C.
solubility	Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
pka	14.49±0.20(Predicted)
form	Viscous Liquid
color	APHA: ≤10
Specific Gravity	1.038 (20/20℃)1.036～1.040
PH	6-8 (100g/l, H2O, 20℃)
Odor	at 100.00 %. odorless very slight alcoholic
Odor Type	odorless
biological source	synthetic
explosive limit	2.4-17.4%(V)
Water Solubility	miscible
Sensitive	Hygroscopic
Merck	147,855
JECFA Number	925
BRN	1340498
Dielectric constant	32
InChIKey	DNIAPMSPPWPWGF-UHFFFAOYSA-N
LogP	-0.92
Surface tension	35.44mN/m at 298.15K
CAS DataBase Reference	57-55-6(CAS DataBase Reference)
NIST Chemistry Reference	Propylene glycol(57-55-6)
EPA Substance Registry System	Propylene glycol (57-55-6)

Propylene glycol CAS 57-55-6 Food humectant Cosmetic moisturizer Cosmetic penetrant Automotive coolant

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.