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Gliceryna

Glycerine , glycerol, C3H8O3 ( systematic name : propane-1 ,2,3- trio) is the easiest durable hydric alcohol. The main source of glycerol in the industry are vegetable fats and animal fats which saponification reaction form a soap. Glycerin is also in some fruits and vegetables. Features: • Molar Mass - 92.09 g / mol • Appearance - syrupy liquid , oily to the touch , colorless or almost colorless, transparent , very hygroscopic • Density and phase - 1.2589 g / cm ³ [1 ] ; liquid 1.261 g / cm ³ (20 ° C) [ 4] ; liquid • Solubility : In the water - no restrictions In ethanol - without restrictions In acetone - sparingly soluble The fatty oils and oils - practically insoluble • Melting point - 18-20 ° C • Melting point - 290 ° C / 182 ° C ( 27 hPa) • Critical temperature - 577 ° C • Critical pressure - 74.02 MPa • Acidity - 14.4 • Viscosity - 954 cP • Surface tension - 64.8 g / s (20 ) Application: Glycerol is a good solvent because fat and lipids is used for the production of ointments, creams or other cosmetic products . It has moisturizing the skin. Also used in pharmaceutical, food and leather . Glycerol is also used in the manufacture of dyes , brake fluids and coolants. It is also used for the production of explosives and in the tanning of leather to dry - hygroscopic . Additionally, glycerol plays a very important role in insects lowering their freezing point and supercooling of body fluids .