Propylethylene гликоль/пропиленгликоль CAS

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Purity 99.6% min propylene glycol / CAS: 57-55-6


Introduction of Propylene Glycol


CAS: 57-55-6


Category standard: Technical quality and pharmaceutical quality


PG Content: 99.7% Min


Appearance: Colorless, viscous and transparent liquid


Specification of Propylene Glycol





































































































ArticlesUnitSpecificationResults
DosageGLC%99.5 mins99.9
Humidity% In weight0.2max0.065
Specific severity(25/25 ℃)1.0360-1.03701.0365
Refractive index25 ℃1.4307-1.43171,431
Distillation range(L), ℃184.0-189.0184
Distillation range(U), ℃184.0-189.0189
Volume distillationFlight %95 mins97.2
AcidityPpm50max40
Weight Chloride0.007max<0.007
Sulfate0.006max0.006max<0.006
Heavy metalsWeight ppm5max<5
Residue on ignition% In weight0.07max0.05
Volatile organic chloroform impurities (μg / g)----60maxNot detected
Organic impurity Volatile 1.4 dioxane (μg / g)----380maxNot detected
Methylene chloride (μg / g)----600maxNot detected

Application of propylene Glycol:


Propylene glycol (PG C3H8O2) is a colorless liquid with constant viscosity and good water absorption. it is almost odorless, non-flammable and almost non-toxic. It can be mixed and resolved with alcohol, water and various organic agents.


Propylene glycol is the raw material for unsaturated polyester resin, plasticizer, surface active agent, emulsifier and demulsifier. it can also be used as a mold inhibitor, an antiseptic for fruit, an ice inhibitor and a moisture preservative for tobacco.


 


 


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