
Cyclohexanol is an important alicyclic alcohol compound with the mf: C₆H₁₂O and mw: 100.16. It exists as a colorless, transparent, viscous liquid at room temperature and solidifies into white needle-like crystals at low temperatures (<25.9°C). Its chemical properties are primarily determined by the secondary hydroxyl group (-OH) and the six-membered saturated carbon ring in its molecule. Cyclohexanol exhibits both typical alcohol reactions and the stability of alicyclic hydrocarbons, along with solvent characteristics. It serves as a key intermediate in organic synthesis, materials chemistry, and related fields.
| Item | Specification |
| Melting point | 23–24°C (lit.) |
| Boiling point | 160–161°C (lit.) |
| Density | 0.948 g/mL at 25°C (lit.) |
| Vapor density | 3.5 (vs air) |
| Vapor pressure | 0.98 mmHg (25°C) |
| Refractive index | n₂₀/D 1.465 (lit.) |
| Flash point | 67°C |
| Acidity coefficient (pKa) | 16 |
| Viscosity | 41.067 mPa·s (at 30°C) |
| Odor | Mild mint-like or camphor-like odor, no strong irritation |
| Relative polarity | 0.509 |
| Explosive limit | 2-11.2% (V) |
| Solubility | Sparingly soluble in water; readily soluble in organic solvents such as ethanol and diethyl ether; miscible with most esters and resins. |
As an organic synthesis intermediate, cyclohexanol is used to synthesize caprolactam, adipic acid, and other alicyclic compounds.
Hydroxycyclohexane is commonly used to dissolve natural resins (e.g., shellac, rosin), synthetic resins (e.g., alkyd resins, epoxy resins), rubber, oils, fats, dyes, etc.
Cyclohexanol can be directly used in flavor compounding (e.g., menthol-type, woody-type flavors); its esters (e.g., cyclohexanecarboxylic acid ethyl ester, cyclohexanecarboxylic acid benzyl ester) are common fragrance raw materials for perfumes, skincare products, and detergents.
Hydroxycyclohexane is used in synthesizing antifungal drugs, sedatives, and other pharmaceuticals.
Hydroxycyclohexane serves as a raw material for DCHP, a plasticizer.
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