1.Propylene Glycol 2.Pharma Grade & Tech Grade 3.CAS No 57-55-6 4.Molecular Formula C3H8O2 5.Molecular Weight 76.10

Propylene Glycol, Pharma Grade & Tech Grade

CAS No 57-55-6Molecular Formula C3H8O2Molecular Weight 76.10

Colorless, transparent liquid

Item	Standard	Unit	Index
Color(APHA)	10		Max
PG Content	99.5	%	Min
Moisture	0.2	%	Max
Specific gravity(25)	1.0350-1.0410	%
Refractive index(25)	1.4307-1.4317
Distillation rang(L) ,	184.0-189.0
Distillation rang(U) ,	184.0-189.0
Distillation volume, Vol	95	%	Min
Identification	passed
Acidity	0.2	ml	Max
Chloride	0.007	%	Max
Sulfate	0.006	%	Max
Heavy metals	5	ppm	Max
Residue on ignition	0.007	%	Max
Organic Volatile impurity chloroform	60	ug /g	Max
Organic Volatile impurity 1.4 dioxane	380	ug /g	Max
Organic Volatile impurity methylene chloride	600	ug /g	Max
Organic Volatile impurity trichloroethylene	80	ug /g 3	Max

Its most important end use is in the production of unsaturated polyester resins that, in turn, go into items that effect our daily lives, like water tanks, or our leisure time, like sailing boat. It can also be used as plasticizer, surface active agent, emulsifying agent and demulsifying agent, mould inhibitor, antiseptic for fruit, ice inhibitor and moisture preserving agent for tobacco.  

Propylene Glycol