GLYCERINE

GLYCERINE

Glycerine (glycerol) is a tristomic alcohol, the simple polyol compound.

Glycerine is a thick, oily, colourless and odourless liquid, with a sweet taste, which is widely used in pharmaceutical formulations. Glycerine has three hydrophilic hydroxyl groups, which determine the solubility of glycerine in water and its hygroscopicity. The glycerine backbone is the central part of all lipides known as triglycerides.

Molecular formula: C3H8O3

Molecular weight: 92,09

CAS No.: 56-81-5

Items Value for Glycerine
Appearance colourless liquid
Glycerine, min. content ≥ 99,7%
Density, g/ml, at 20∞C 1,2644
pH (100g/l H2ќ, 20∞C) ~ 5,0
Melting point of Glycerine 18∞C
Boiling point of Glycerine 290∞C, Decomposition > 290∞C
Flash point 177∞C
Ignition point ~ 429∞C
Index of light refraction 1,472
Surface tension at 20∞C 64,00 mN/m
Temperature coefficient Ц0,0598 mN/(K*mol)
Colour of Glycerine 2
Water content, % (m/m), max. 0,10
Sulphated ash content, % (m/m), max. 0,01 %
Acidity (amount of used NaOH in ml), max. 0,10 ml
Chlorides, ppm, max. < 5 ppm
Halogen derivatives content, ppm, max. < 35 ppm
Esters content (amount of used HCl in ml) 8,8 ml
Polysaccharide content withstands Eur.Ph.2005
Heavy metals content, ppm, max. < 5 ppm
Aldehyde content, max. < 5 ppm

Application of Glycerine:

  • Food additive E422 for foodstuffs and drinks Ц for water retention and as a solvent and sweetener
  • Filler for products with low fat content (like cookies)
  • Thickener in liqueurs
  • Substitute of sugar
  • In Pharmaceutical and Cosmetics industry for production of syrups, elixirs, soap, shaving creams, toothpaste, skin care and hair care products
  • As a binder for tablets production
  • As a wound-healing substance, for lubrication and wetting
  • For nitroglycerine production
  • Antifreeze production with the depression of the freezing temperature to Ц37,8 ∞C with 60-70 % glycerine content in water
  • In paint production

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