n-butanol

Chemical formula CH3(CH2)30H, molecular weight 74.12, colorless transparent liquid, strong flame when burning.Has an odor similar to fusel oil. Its vapors are irritating and can cause coughing.Azeotro

Chemical formula CH3(CH2)30H, molecular weight 74.12, colorless transparent liquid, strong flame when burning.Has an odor similar to fusel oil. Its vapors are irritating and can cause coughing.Azeotrope was formed by boiling point of 117.7℃, relative density of 0.810,63% n-butanol and 37% water.It is miscible with ethanol, ether and many other organic solvents.It is obtained by fermentation of sugars or by catalytic hydrogenation of n-butyraldehyde or butenal.Used as a solvent for fats, waxes, resins, shellac, varnishes, etc., or in the manufacture of paints, artificial fibers, detergents, etc.


1. Properties:colorless transparent liquid with special odor.。

2. Melting point(℃):-89. 8

3. Boiling point(℃):117. 7 

4. Relative density(水=1):0. 81 

5. Relative vapour density(空气=1):2. 55 

6. Saturated vapor pressure(kPa):0. 739(20℃)

7. Heat of combustion(kJ/mol):-2673.2 

8. Stagnation temperature(℃):289.85 

9. Critical pressure:4.414  

10. Octanol/water partition coefficient:0.88  

11. Flash point(℃):29

12. Ignition tempereture(℃):355~365

13. Explosive upper limit (%):11.3

14. Explosive lower limit(%):1.4 

15. Solubleness:Slightly soluble in water, soluble in ethanol, ether and other organic solvents

16. Viscosity(mPa·s,20ºC):2.95 

17. Heat of vaporization(KJ/mol):43.86 

18. Heat of fusion (KJ/kg):125.2 

19. Generating heat (KJ/mol):-246.67 

20. The specific heat capacity(KJ/(kg·K),20ºC,定压):2. 33

21. The electrical conductivity(S/m):9. 12×10-9 

22. The thermal conductivity(W/(m·K),20ºC):16.75 

23. Solubility(%,水,20ºC):7.8 

24. Volume expansion coefficient (K,20ºC):0.00095

25. Relative density(20℃,4℃):0.8097

26. Relative density (25℃,4℃):0.8060 

27. Normal temperature refractive index(n25):1.3971 

28. Critical density(g·cm-3):0.271

29. Critical volume(cm3·mol-1):274 

30. Critical compression factor:0. 258 

31. Eccentric factor:0. 595 

32. Lennard-Jones(A):14. 00

33. Lennard-Jones(K):156.3 

34. Solubility parameter(J·cm)0.5:23.289 

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