Glycerin - C3H8O3

What is Glycerin?

Glycerin is a simple poly compound. This solvent has chemical formula C3H8O3. It is also known as Glycerol or glycerine. It is hygroscopic in nature. It is found in lipids like triglycerides and is obtained from animal and plant sources. It is water soluble due to three a three hydroxyl groups. It is colorless and viscous. It is non toxic, odorless and has a sweet taste. It is widely used as a sweetening agent, solvent, pharmaceutical agent or emollient. It is miscible with water. Glycerin is produced through saponification, hydrolysis, transesterification of triglycerides. Synthetic glycerol can be produced by propylene.

Properties of Glycerin – C3H8O3

C3H8O3 Glycerin
Molecular Weight/ Molar Mass 92.09 g/mol
Density 1.261 g/cm³
Boiling Point 290 °C
Melting Point 17.8  °C

Glycerin structure – C3H8O3

Glycerin structure

C3H8O3 Uses (Glycerin)

  • It is used in food industry as a sweetener and preservative
  • It is used in liqueurs as a thickening agent
  • It is used in low fat food like cookies as a filler
  • It is used as a lubricant
  • It is used in the treatment of severe increased eye pressure
  • It has moisturizing property and hence is used to prevent dry skin
  • It is used pharmaceutical industries in making of cough syrups
  • It is used in skin care products and toothpaste
  • It is used electronic cigarette liquid
  • It is used in explosives such as dynamite
  • It is used as fill to damp vibrations in pressure gauge
  • It is used in film industries to avoid quick drying of water areas

Also Read:

Learn more about the properties, production and the structure of C3H8O3 from the expert faculties at BYJU’S.


Practise This Question

When FeCr2O4 is fused with Sodium Carbonate in the presence of air, we get Sodium Chromate. If the filtrate from this reaction is acidified, we get: