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Propylene glycol

PROPYLENE GLYCOL USP GRADE
CAS No.:57-55-6
Appearance:Colorless,Colorless,Viscous,transparent liquid

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Introduction Parameters

Item Unit Specification Result

PG content	Wt %	99.80 min	99.886
Moisture	%	0.15max	0.049
Colourity(Pt-Co)	APHA	10	5
Acidity	%	0.5 max	0.27
IBP	DegC	186 min	186.8
DP	DegC	189 max	188.6
Iron	ppm	0.5 max	<0.5
Sulfate	%	0.006max	<0.006
Chloride	%	0.007max	<0.007
Heavy Metals(Pb)	%	0.0005 max	<0.0005
Residue on Ignition	mg	2.5 max	0.3
Density (20℃)	20/20degC	1.035-1.038	1.0355
Index of refraction	nD20	1.431-1.435	1.4327
Appearance		Colorless, Colorless,Viscous, transparent liquid	Colorless, Colorless,Viscous, transparent liquid

Conclusion: The product of this batch can match the specification by analysis.

Product Name:PROPYLENE GLYCOL USP GRADE

Batch Number: CG20210120 Manufacturing

Date: JAN 20, 2021

Expiry Date: JAN 19, 2022