• Propylene Glycol

•  

  57-55-6 Glycol Monopropylene 99.5%min 1,2-propylen glycol 

  
  It is a colorless liquid with steady viscosity and good water absorption. It is nearly odorless, uninflammable and minutely toxic. Its molecular mass is 76.09.  Its viscosity (20oC), specific heat capacity (20oC) and latent heat of vaporization (101.3kpa) are respectively 60.5mpa.s, 2.49KJ/(kg. oC) and 711KJ/kg. It can be mixed and solved with alcohol, water and various organic agents.
  
  Application
  Propylene Glycol is the raw material for preparing unsaturated polyester resin, antifreeze, etc.It is also a moisture preserving agent for tobacco, cosmetic, etc. Besides, it is a good solvent in coating, paints, and others.
  
  Specifications

  Index	High Grade	Technical Grade
  PG content % ≥	99.7	99.5
  Moisture %     ≤	0.10	0.20
  Color  (Pt-Co) No. ≤	10	16
  Relative density d2020 g/cm3	1.035~1.038	1.035~1.040
  Index of refraction(nd20)	1.431-1.435	1.428-1.435
  Acidity(as acetic acid), % ≤	0.01	0.02
  Distillation range(IBP-DP) oC	184~190	183~190
  Appearance	Colorless, viscous and transparent liquid, no mechanical impurity

   
  Packing, Storage and Transportation:
  It can be packed by ISO tank, galvanized iron drum(net weight 215kgs), plastic drum, IBC or flexitank, etc.
   

  

   

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There are many uses for mono propylene glycol across many different industries and some chemical manufacturers produce two grades of MPG to meet these varied needs. 

Consumer uses 

The first grade is used in the food industry for food colourings and flavourings and is also a classified humectant food additive (E1520). There are also many applications in the cosmetics industry that use this solvent, specifically personal care products including shampoos, bubble baths, baby wipes and as a moisturiser in make-up. 

Industry uses 

The second is industrial grade MPG which has a variety of uses but the main application is as an antifreeze and aircraft wing and runway de-icer which is because its freezing point lowers upon mixing with water.  It is also used in heat transfer liquids such as engine coolants.  

Monopropylene Glycol is additionally used in the pharmaceutical industry, examples include as a chemical intermediate in the production of high-performance unsaturated polyester resins used in paints and varnishes and as an excellent solvent utilised in printing inks. It is also used in the manufacturing of non-ionic detergents which are used in the petroleum, sugar-refining, and papermaking industries, the cryonics industry and as an additive in pipe tobacco, preventing dehydration