Name | 2-BUTANOL |
Synonyms | 2-BUTANOL BUTAN-2-OL S-BUTYL ALCOHOL 2-Butyl alcohol 2-HYDROXYBUTANE BUTYLENE HYDRATE ETHYLMETHYLCARBINOL METHYLETHYLCARBINOL SECONDARY BUTYL ALCOHOL |
CAS | 15892-23-6 |
EINECS | 201-158-5 |
Molecular Formula | C4H10O |
Molar Mass | 74.12 |
Density | 0.808g/mLat 25°C(lit.) |
Melting Point | −115°C(lit.) |
Boling Point | 98°C(lit.) |
Flash Point | 80°F |
Vapor Presure | 12.5 mm Hg ( 20 °C) |
Vapor Density | 2.6 (vs air) |
Refractive Index | n20/D 1.397(lit.) |
Physical and Chemical Properties | Colorless liquid. Melting point -114.7 ℃, boiling point 99.5 ℃, relative density 0.8070(20/4 ℃), refractive index 1.3975. Flash point 26 ℃. It is miscible with alcohol and ether and slightly soluble in water. It is volatile and has a strong mint-like fragrance. |
Hazard Symbols | Xi - Irritant |
Risk Codes | R10 - Flammable R36/37 - Irritating to eyes and respiratory system. R67 - Vapors may cause drowsiness and dizziness |
Safety Description | S13 - Keep away from food, drink and animal foodstuffs. S24/25 - Avoid contact with skin and eyes. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S46 - If swallowed, seek medical advice immediately and show this container or label. S7/9 - |
UN IDs | UN 1120 3/PG 3 |
WGK Germany | 1 |
RTECS | EO1750000 |
HS Code | 29051420 |
Use | SEC-Butanol is mostly used in the production of methyl ethyl ketone. Also used as a solvent, mineral, herbicides, plasticizers of raw materials. |
production method | prepared by hydration of butene (1-Butene, cis-2-butene, trans-2-butene). In the production of ethylene from naphtha cracking, the raffinate after the extraction of butadiene from the butane-butene fraction, or the butane-butene fraction from Refinery Refinery gas, the butene was changed to butyl sulfate by absorption with sulfuric acid. Then diluted with water, heating hydrolysis to SEC-butanol, after steam desorption, distillation and the product. Direct hydration may also be used. |