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