Glycerol, also called glycerol, with the chemical formula c3h8o3, is colorless, odorless, sweet, with a clean and viscous liquid appearance. it's miles an organic substance that may take in moisture from the air, as well as hydrogen sulfide, hydrogen cyanide and sulfur dioxide. insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether and oils, it's miles the skeleton factor of triglyceride molecules.

1. Properties: Colorless and odorless viscous liquid with sweet taste.

2. Boiling point: 290℃ at 760mmHg

3. Melting point: 18.17℃

4. Relative density (20c): 1.2613

5. Relative density (25c): 1.2551

6. Refractive index (15ºC)：1.47547

7. Refractive index (20c): 1.4746

8. Refractive index (25c): 1.4730

9. Viscosity (20c): 1500mpa s

10. viscosity (25c): 800mpa s

11. viscosity (30c): 600mpa s

12. viscosity (50c): 150mpa s

13. Flash point: 177℃ (open cup)

14. heat of formation (15c): 669.05kj/mol

15. heat of combustion (25c): 1656.42kj/mol

16. specific heat capacity (15c): 2.46kj/(kg k)

17. Electrical conductivity (20c): 1.0× 10-8s/m.

18. thermal conductivity: 0.29w/(m k)

19. vapor pressure (125.5c): 0.13kpa.

20. Volume expansion coefficient: 0.000615K-1

21. Solubility: It can absorb hydrogen sulfide, hydrocyanic acid and sulfur dioxide. It is miscible with water and ethanol, one part is soluble in 11 parts of ethyl acetate and about 500 parts of ether, but insoluble in benzene, carbon disulfide, chloroform, carbon tetrachloride, petroleum ether, chloroform and oils.