Preparation Method:
Add 100g (1.53mol) of zinc amalgam, 250ml of concentrated hydrochloric acid and 50ml of water into the reaction bottle equipped with stirrer, reflux condenser and vent pipe (extending into the bottom of the bottle), add 40g (0.35mol) of octanone-2 (2) under stirring, and slowly inject hydrogen chloride gas. If the reaction is too violent, the hydrogen chloride gas can be suspended. After 2-3H, most of the zinc amalgam reaction was completed, hydrogen chloride was stopped and placed overnight. Remove the agitator and change to steam distillation unit for steam distillation until the distillate is transparent. The upper oil layer was separated, washed twice with distilled water, fractionated after drying with anhydrous sodium sulfate, and the fraction at 124-126 ℃ was collected to obtain 26G octane (1) with a yield of 58%.
Product Name: n-Octane
Product Properties and Uses: pharmaceutical intermediates;
Category: pharmaceutical intermediates;
1. It is mainly used as a component of solvent gasoline and industrial gasoline. Other solvents used for printing ink solvent, diluent of solvent for coating, solvent for butyl rubber, solvent for olefin polymerization and other organic reactions. 2. It is used as solvent and chromatographic reference material, as well as organic synthesis.
CAS No.: 111-65-9
MDL No.: mfcd00009556
EINECS No.: 203-892-1
RTECS No.: rg8400000
BRN No.: 1696875
PubChem No.: 24857891
Physical Data and Uses of n-Octane
n-Octane is an organic substance, colorless and transparent liquid.
It is one of the components of industrial gasoline. It can also be used as solvent and organic synthetic raw material.
Main Uses:
1. It is mainly used as a component of solvent gasoline and industrial gasoline. Other solvents used for printing ink solvent, diluent of solvent for coating, solvent for butyl rubber, solvent for olefin polymerization and other organic reactions.
2. It is used as solvent and chromatographic reference material, as well as organic synthesis.
Physical Data:
1. Properties: colorless transparent liquid[
2. Melting point (℃): – 56.8
3. Boiling point (℃): 125.6
4. Relative density (water = 1): 0.70
5. Relative vapor density (air = 1): 3.94
6. Saturated vapor pressure (kPa): 1.33 (20 ℃)
7. Combustion heat (kJ / mol): – 5445.3
8. Critical temperature (℃): 296
9. Critical pressure (MPA): 2.49
10. Octanol / water partition coefficient: 4.00 ~ 5.18
11. Flash point (℃): 13 (CC); 22 (OC)
12. Ignition temperature (℃): 206
13. Upper explosion limit (%): 6.5
14. Lower explosive limit (%): 1.0
15. Solubility: insoluble in water, soluble in ethanol, ether, benzene, acetone and other organic solvents.
16. Viscosity (20 º C, MPA · s): 0.5466
17. Viscosity (25 º C, MPA · s): 0.5151
18. Heat of evaporation (25 ℃, kJ / mol): 41.512
19. Heat of evaporation (B.P., kJ / mol): 34.390
20. Heat of evaporation (25 ℃, kJ / mol): 41.512
21. Heat of evaporation (B.P., kJ / mol): 34.390
22. Heat of dissolution (kJ / mol): 20.754
23. Heat of formation (liquid, kJ · mol): -250.12
24. Heat of formation (gas, kJ · mol): -208.59
25. Total calorific value of combustion (kJ / mol): 5474.36
26. Minimum calorific value of combustion (kJ / mol): 2077.96
27. Specific heat capacity (ideal liquid, 25 º C, constant pressure) / [kJ / (kg · K)]: 1.65
28. Specific heat capacity (liquid, 25 ℃, 101.3 kPa) / [kJ / (kg · K)]: 2.23
29. Thermal conductivity (20 ℃) / [MW / (m · K)]: 131.047
30. Thermal conductivity (30 ℃) / [MW / (m · K)]: 128.250
31. Volume expansion coefficient (15.6 ℃) / k-1: 11.16 × 10–4
32. Aniline point (º C): 70.6
33. Critical density (g · cm-3): 0.232
34. Critical volume (cm3 · mol-1): 492
35. Critical compression factor: 0.259
36. Eccentricity factor: 0.369
37. Lennard Jones parameter (a): 7.3491
38. Lennard Jones parameter (k): 314.25
39. Solubility parameter (J · cm-3) 0.5:15.360
40. Van der Waals area (cm2 · mol-1): 1.234 × one thousand and ten
41. Van der Waals volume (cm3 · mol-1): 88.720
42. Standard combustion heat (enthalpy) of gas phase (kJ · mol-1): – 5512.0
43. Gas phase standard claimed heat (enthalpy) (kJ · mol-1): – 208.5
44. Standard entropy of gas phase (J · mol-1 · k-1): 467.35
45. Standard free energy of formation in gas phase (kJ · mol-1): 16.6
46. Gas phase standard hot melt (J · mol-1 · k-1): 187.78
47. Standard combustion heat (enthalpy) of liquid phase (kJ · mol-1): -5470.50
48. Standard declared heat (enthalpy) of liquid phase (kJ · mol-1): -250.04
49. Standard entropy of liquid phase (J · mol-1 · k-1): 361.12
50. Standard free energy of formation in liquid phase (kJ · mol-1): 6.32
51. Liquid phase standard hot melt (J · mol-1 · k-1): 255.68
