Glycerol / Glycerine / Glycerin (General Use)

Chemical and Physical Properties of Glycerol

• Name: Glycerol / glycerin / glycerine
• Molecular formula: C3H8(OH)3
• Molecular weight: 92,09382 g/mol
• Appearance: Clear, colourless, odourless, syrup solution (or solid below 64 Fahrenheit) with a sweet taste
• Boiling point: 290 degree Celsius (554 Fahrenheit)
• Melting point: 18 degree Celsius (64 Fahrenheit)
• Solubility: Miscible with water, acetone, ethanol and ethyl ether, but insoluble in petroleum ether, carbon disulfide, chloroform, carbon tetrachloride and benzene
• Stability: Solutions in water, ethanol and propylene glycol are stable, but glycerol may crystallise if stored at low temperatures (crystals only re-melt at temperatures above 20 degree Celsius)
• Decomposition: Pure solutions are very resilient to oxidation under normal conditions, but it can decompose if heated, producing acrolein, which can become toxic in high concentrations
• Metabolism: After ingestion, glycerol is quickly absorbed in the stomach and intestines and distributed as an energy source around the body. This compound can be phosphorylated to glycerophosphate in the liver and kidneys by an enzyme called glycerol kinase and then used in normal metabolic pathways. Alternatively, glycerol is combined with free fatty acids to produce triglycerides, which are stored in adipose tissues

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