1,2-Propanediol , ACS,≥99.5% , 57-55-6

Synonym(s):
Propylene glycol;1,2-Propanediol;1,2-Propylene glycol;1,2-PDO;Propylene Glycol, 1

CAS NO.：57-55-6

Empirical Formula: C3H8O2

Molecular Weight: 76.09

MDL number: MFCD00064272

EINECS: 200-338-0

PRODUCT 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
• Flash point: 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
• explosive limit: 2.4-17.4%(V)
• Water Solubility: miscible
• Sensitive: Hygroscopic
• Merck: 14,7855
• JECFA Number: 925
• BRN: 1340498
• Dielectric constant: 32.0
• InChIKey: DNIAPMSPPWPWGF-UHFFFAOYSA-N
• LogP: -0.92
• 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)

Description and Uses

Propylene glycol is used as antifreeze in breweries and diaries, in the manufacture of resins, as a solvent, and as an emulsifier in food. It was present as an occupational sensitizer in the color-film developer Flexicolor.

Used as a solvent.

Safety

• Symbol(GHS): GHS08
• Signal word: Danger
• Hazard statements: H370-H372
• Precautionary statements: P501-P260-P270-P264-P308+P311-P405
• Safety Statements: 24/25
• WGK Germany: 1
• RTECS: TY2000000
• Autoignition Temperature: 779 °F
• TSCA: Yes
• HS Code: 29053200
• Hazardous Substances Data: 57-55-6(Hazardous Substances Data)
• Toxicity: LD50 orally in Rabbit: 19400 - 36000 mg/kg LD50 dermal Rabbit 20800 mg/kg