Cyclohexanol Cyclohexanol

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

Numbering system

CAS number:108-93-0

MDL number:MFCD00003855

EINECS number:203-630-6

RTECS number:GV7875000

BRN number:906744

PubChem number:24857503

Physical property data

1. Properties: It is a colorless and transparent liquid at 25℃, with a camphor smell.

2. Boiling point (ºC, 101.3kPa): 161.1

3. Melting point (ºC): 25.1

4. Relative density (g/mL , 20/4ºC): 0.9455

5. Relative vapor density (g/mL, air=1): 3.45

6. Refractive index (n25ºC): 1.4647

7. Flash point (ºC, opening): 68

8. Viscosity (mPa·s, 25ºC): 4.6

9. Heat of vaporization (KJ/mol, 158.7 ºC): 45.51

10. Heat of fusion (KJ/kg): 20.5

11. Heat of formation (KJ/mol): -349.31

12. Heat of combustion (KJ/mol): 3726.67

13. Specific heat capacity (KJ/(kg·K), constant pressure): 2.15

14. Vapor pressure (kPa, 21ºC): 0.13

15. Solubility (%, 20ºC, water): 3.6

16. Flash point (ºC): 300

17. Solubility: soluble in water , miscible with alcohol, ether, carbon disulfide, acetone, chloroform, benzene, turpentine, aliphatic hydrocarbons, aromatic hydrocarbons, halogenated hydrocarbons, etc.

18. Critical temperature (ºC): 376.95

19. Critical pressure (MPa): 4.26

20. Eccentricity factor: 0.514

21. Solubility parameter (J·cm^-3)^0.5: 23.672

22. van der Waals area (cm

3.It can be produced by phenol hydrogenation or cyclohexane oxidation.

4. Use industrial cyclohexanol as raw material, dehydrate and dry with an appropriate amount of fresh calcium oxide, filter and distill, and then add A small amount of metallic sodium is re-distilled, and the 160-162°C fraction is collected to obtain the finished product.

5.The cyclohexene method uses ruthenium as the catalyst, zinc compounds as cocatalysts, water as the continuous phase, and benzene as the dispersed phase. Phase, the benzene is partially hydrogenated to generate cyclohexene, the reaction temperature is 100~180℃, and the reaction pressure is 3~10MPa. Then cyclohexene is obtained through extractive distillation, and cyclohexene is hydrated to obtain cyclohexanol. The hydration reaction uses high-silica zeolite ZSM-5 as the catalyst. The catalyst is suspended in water, cyclohexene is used as the oil phase, and the generated cyclohexanol is extracted with the oil phase. The product is recovered through oil-water separation, and then unreacted is removed by ordinary distillation. of cyclohexene to obtain the product cyclohexanol. The process flow is as follows:

Catalysts (Group VIII metals, especially Ru) and accelerators (such as zinc chloride, titanium chloride, tungsten carboxylate) are used in the partial hydrogenation reaction of benzene, which can achieve a maximum yield of 30%. The reaction was carried out in benzene and alkaline aqueous phases at 177°C and 7.0MPa.

Purpose

1. Important chemical raw materials, mainly used to produce adipic acid, hexamethylenediamine, cyclohexanone, and caprolactam. It can also be used as a stabilizer for soap, to manufacture disinfectant soaps and detergent emulsions, and as an alkyd resin. , solvents for glycerol trirosinate, kauri resin, manila resin, frankincense, shellac, metallic soap, acid dyes, essential oils, mineral oil, etc., admixtures for paints, leather degreasing agents, release agents, dry cleaning agents, wipers, etc. Brightener. Cyclohexanol is also a raw material for fiber finishing agents, pesticides, and plasticizers. Cyclohexanol reacts with phosgene to obtain cyclohexyl chloroformate, which is the intermediate of the initiator dicyclohexyl peroxydicarbonate.

2. Used as latex stabilizer, paint stripper for coatings and varnishes, and also used in spices, plasticizers, etc.

3.Used as analytical reagents and solvents.

4.Used in adhesives to produce unsaturated polyester resin. Industrial cyclohexanol is mainly used as an intermediate in the production of polyamide 6 and polyamide 66 and is an important chemical raw material.