Propylene glycol

Detailed Product Description

Product name: Propylene glycol

Molecular formula: C₃H₈O₂

CAS No.: 57-55-6

Propylene Glycol Pharma Grade

Item	Index
Color Tone (APHA)	10 max
Water,%	0.2 max
Specific gravity (20/25 °C)	1.0350~1.4010
Refractive index(25°C)	1.4307~1.4317
Distillation range (L), °C	184.0~189.0
Distillation range (U),°C	184.0~189.0
Distillation volume, Vol%	95 min
Identification	passed
Acidity, ml	0.20 max
Chloride, %	0.007 max
Sulfate, %	0.006 max
Heavy metals, ppm	5 max
Residue on ignition, %	0.007 max
Organic Volatile impurity Chloroform, μg/g	60 max
Organic Volatile impurity 1.4 dioxane, μg/g	380 max
Organic Voltile impurity methylene chloride,μg/g	600 max
Organic Voltile impurity trichloroethylene, μg/g	80max
Assay, GLC%	99.5 min