Propylene Glycol(PG)

It is a colorless liquid with steady viscosity and good water absorption. It is nearly odorless, uninflammable and minutely toxic. Its molecular mass is *6.*9.  Its viscosity (*0oC), specific heat capacity (*0oC) and latent heat of vaporization (**1.3kpa) are respectively *0.5mpa.s, 2.*9KJ/(kg. oC) and **1KJ/kg. It can be mixed and solved with alcohol, water and various organic agents.

PG is the raw material for preparing unsaturated polyester resin, plasticizer, surface active agent, emulsifying agent and demulsifying agent. It can also be used as mould inhibitor, antiseptic for fruit, ice inhibitor and moisture preserving agent for tobacco.

 

Specifications (It conforms to the Quality System Standard: ISO***1: ***0):

 

 

Index High Grade

 Technical Grade

 

PG content % min

 *9.5

 *9.0 

 

Moisture %  max

 0.*0

 0.*0

 

Color  (Pt-Co) No. max

 *0

 *6

 

Relative density d***0 g/cm3

 1.**5~1.**8

 1.**5~1.**0

 

Index of refraction(nd*0)

 1.****1.**5

 1.****1.**5

 

Acidity(as acetic acid), % max

 0.*1

 0.*2

 

Distillation range(IBP-DP) oC

 **4~**0

 **3~**0

 

Appearance

Colorless, viscous and transparent liquid, no mechanical impurity

Packing, Storage and Transportation:

It can be packed by ISO tank, galvanized iron drum, plastic drum, IBC or flexitank, etc.

This product should be stored in cool and windy special warehouse far from fire and transported as a general chemical.