Isoamyl alcohol

• I- amyl alcohol, prim
• I- butyl carbinol
• Isopentyl
• Isoamyl alcohol
• Isopentanol
• 3- methyl butanol -1

Flammable, colorless liquid

Liquid

0.81 g · cm -3

-117 ° C

131 ° C.

2.7 hPa ( 20 ° C)

• Poorly in water (30 g · l-1 at 20 ° C)
• Soluble in organic solvents such as ethanol, acetone, benzene, chloroform, petroleum ether and glacial acetic acid

1.406 (20 ° C)

Attention

1300 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

3-methyl -1-butanol (also known as isoamyl alcohol ) is an organic chemical compound from the group of alcohols.

Occurrence

3-methyl -1-butanol is the main constituent of the fusel oil, but also a characteristic minor component of alcoholic beverages such as whiskey and brandy, wine and beer. The training is done by reducing the amino acid leucine by fermentation with yeasts on the a- keto- isocaproic, where is it needed liberated ammonia for cell growth of yeasts.

Production and representation

3-methyl -1-butanol is produced by hydroformylation of butene isomers.

Properties

3-methyl -1-butanol is flammable, colorless liquid, and has a dynamic viscosity of 5.09 mPas at 20 ° C.

Safety characteristics

3-methyl -1-butanol forms flammable vapor - air mixtures. The compound has a flash point of 42 ° C. The explosive range is between 1.2 vol% (44 g/m3) as the lower explosive limit ( LEL) and 10.5 % by volume (385 g/m3 ) and upper explosive limit (UEL ). The marginal gap width was determined to be 0.91 mm. The result is thus a mapping in the explosion group IIA. The ignition temperature is 440 ° C. The fabric falls within the temperature class T2.

Use

3-methyl -1-butanol is used as a solvent for fats, oils and resins. And used (in combination with chloroform) for the extraction of nucleic acids. It also serves as an intermediate for the preparation of other chemical compounds (such as di ( 3 -methyl-butyl ) ether ), which are used as fragrance and flavor substances and as herbicides.