PHARMACEUTICAL & COSMETIC INGREDIENT > Propylene Glycol >

Propylene Glycol

Molecular Formula:C3H8O2
CAS NO.: 57-55-6
INQUIRY

Propylene glycol,Other name1,2-propanediol, is an organic compound with the chemical formula of C3H8O2. It is miscible with water, ethanol and various organic solvents. Under normal conditions, it is colorless viscous liquid, almost tasteless and slightly sweet. Propylene glycol can be used as raw material of unsaturated polyester resin, and can be used as wetting agent with glycerol or sorbitol in cosmetics, toothpaste and soap. In hair dyes, it is used as moisture control, hair conditioner, antifreeze, cellophane, plasticizer and pharmaceutical industry.

Items	Standard	Result
Appearance	Colorless clear viscous liquid	Conformed
Assay as PG on a dry basis,%	99.8min	99.91
EG, ppm	50max	0
DEG,ppm	50max	0
Residue on ignition,mg	2.5max	0.8
Chloride,%	0.007max	<0.007
Sulfate,%	0.006max	<0.006
Heavy metals, ppm	5max	<5
Specific Gravity, 25℃	1.035-1.037	1.036
Acidity (0.1N NaOH),ml	5 max	<1
Residue on Ignition, %	0.05max	0.03
Moisture,%	0.1max	0.056
Fe, ppm	0.1max	0
Color,Pt-Po	10max	<10
IBP,℃	184	184
DP,℃	189	189