TECHNICAL DATA SHEET
1,2-PROPANEDIOL AR

1,2-Propanediol

Biochem Chemopharma
Article No. 516180500 Molecular Formula C3H8O2
H.S. Code 2905.3200 Molecular Weight 76.10
CAS No. 57-55-6
 

Physical Properties

Physical state at 20 °C Liquid
Colour Clear colorless
Odour Odorless
Melting point/ Freezing point [°C] -60 °C
Auto-ignition temperature [°C] 371°C
Flash point [°C] 103 °C
Boiling point [°C] 187 °C
Vapour pressure [20°C] 0.11 hPa at 20 °C
Vapour density 2.63
Density [g/cm3] 1.036
Solubility in water [% weight] Soluble in water
Partition coefficient Log Pow octanol / water at 20°C -0.9
Explosion limits - upper [%] 12.50%
Explosion limits -lower [%] 2.60%
 

Specifications

Assay (GC) % Min 99.5
Wt. Per ml at 20°C 1.035 - 1.037 g
Refractive index Ë 1.431 - 1.433
Boiling range (95%) °C 186 - 189
Free acid (CH3COOh) % Max 0.002
Free alkali (as NaOh) % Max 0.002
Chloride (Cl) % Max 0.005
Lead (Pb) % Max 0.0005
Water % Max 0.1
Sulfate (SO4) % Max 0.002
Iron (Fe) % Max 0.0001