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Isoamyl alcohol, also known as 3-methyl-1-butanol, is an organic compound with the chemical formula C5H12O. It is a colorless liquid, slightly soluble in water, and miscible in ethanol, ether, benzene, chloroform, and petroleum ether. , easily soluble in acetone and soluble in most organic solvents. It is mainly used in the manufacture of spices, medicines and photographic drugs, and can also be used as a solvent.
Physical and chemical properties:
Density: 0.809g/cm3
Melting point: -117℃
Boiling point: 131-132℃
Flash point: 43℃ (CC)
Critical temperature: 304℃
Critical pressure: 3.92MPa
Ignition temperature: 347℃
Refractive index: 1.407 (20℃)
Saturated vapor pressure: 0.27kPa (20℃)
Explosion upper limit (V/V): 9.0%
Lower explosion limit (V/V): 1.2%
Appearance: colorless liquid
Solubility: Slightly soluble in water, miscible in ethanol, ether, benzene, chloroform, petroleum ether, easily soluble in acetone, soluble in most organic solvents
Use:
1. Manufacturing of spices, pharmaceuticals and photographic drugs: Isoamyl alcohol is a colorless liquid, slightly soluble in water, miscible in organic solvents such as ethanol, ether, benzene, chloroform, petroleum ether, etc., and easily soluble in acetone. Used in the manufacture of spices, medicines and mineral processing agents, and can also be used as solvents
2. Used as chromatography reagent and extraction agent: Isoamyl alcohol also has important applications in chemical analysis. It can be used as chromatography reagent and extraction agent.
3. Used in organic synthesis and pharmaceuticals: Isoamyl alcohol is also widely used in the fields of organic synthesis and pharmaceuticals. It can be used to synthesize various organic compounds and is also one of the important raw materials in the pharmaceutical industry.
4. Food additive: In the food industry, isoamyl alcohol can be used as a food additive. The smell and taste of isoamyl alcohol are in 50% (V/V) deodorized ethanol. At 1000mg/L, it has an ethereal and fruity aroma. It tastes spicy and astringent; at 100 mg/L, it is slightly ether-like and has a light fruity aroma. In liquor, it cooperates with other aroma components to play a coordinating role in the aroma, and plays an important role in the aroma of acetaldehyde and acetal.
Standards for maximum allowable use of food additives and maximum allowable residues
| Additive Chinese name | Chinese names of foods that are allowed to use this additive | Additive function | Maximum allowable usage (g/kg) | Maximum allowable residue (g/kg) |
| 3-Methyl-1-butanol | food | food spices | Each fragrance ingredient used to prepare flavors shall not exceed the maximum allowable usage amount and maximum allowable residual amount in GB 2760 |
5. Solvent for fats, resins, alkaloids, determination of fat in milk, determination of iron, silicon, thorium and fusel oil, etc. Also used for complex extraction of iron, cobalt, copper salts and diphenylcarbazide. Separation of lithium chloride from other alkali metal chlorides.
3-Methyl-1-butanol Packaging and Shipping
160 kg/drum
3-Methyl-1-butanol Storage
The warehouse is ventilated, low temperature and dry; stored separately from oxidants