1,2-Propanediol(CAS#57-55-6)

Chemical Property:

Molecular Formula	C3H8O2
Molar Mass	76.09
Density	1.036 g/mL at 25 °C (lit.)
Melting Point	-60 °C (lit.)
Boling Point	187 °C (lit.)
Specific Rotation(α)	n20/D 1.432 (lit.)
Flash Point	225°F
JECFA Number	925
Water Solubility	miscible
Solubility	Miscible in water, acetone, ethyl acetate and chloroform, soluble in ether. It can be dissolved in many essential oils, but cannot be miscible with petroleum ether, paraffin and grease.
Vapor Presure	0.08 mm Hg ( 20 °C)
Vapor Density	2.62 (vs air)
Appearance	Viscous Liquid
Specific Gravity	1.038 (20/20℃)1.036～1.040
Color	APHA: ≤10
Merck	14,7855
BRN	1340498
pKa	14.49±0.20(Predicted)
PH	6-8 (100g/l, H2O, 20℃)
Storage Condition	Store at +5°C to +30°C.
Sensitive	Hygroscopic
Explosive Limit	2.4-17.4%(V)
Refractive Index	n20/D 1.432(lit.)
MDL	MFCD00064272
Physical and Chemical Properties	Colorless, viscous and stable water-absorbing liquid, almost tasteless and odorless. melting point -60 ℃ boiling point 187.3 ℃ relative density 1.0381 refractive index 1.4326 flash point 99 ℃ solubility, ethanol and a variety of organic solvents miscible.
Use	Used as resin, plasticizer, surfactant, emulsifier and demulsifier of raw materials, can also be used as antifreeze and heat carrier

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Product Detail

Product Tags

Safety Description	24/25 – Avoid contact with skin and eyes.
WGK Germany	1
RTECS	TY2000000
TSCA	Yes
HS Code	29053200
Toxicity	LD50 orally in Rabbit: 19400 – 36000 mg/kg LD50 dermal Rabbit 20800 mg/kg

Introduction

Slightly spicy. It is easy to absorb moisture and is stable under normal conditions, but it is easy to produce propionaldehyde, lactic acid, pyruvate and acetic acid at high temperatures. It is miscible with water, acetone and chloroform, and soluble in ether. The median lethal dose (rat, oral) is 25ml/kg.

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57-55-6