Isobutyl formate

Structural formula
General
Surname	Isobutyl formate
other names	Isobutyl formate
Molecular formula	C 5 H 10 O 2
Brief description	colorless liquid with a pungent odor
External identifiers / databases
CAS number 542-55-2 EC number 208-818-1 ECHA InfoCard 100.008.017 PubChem 10957 ChemSpider 10492 Wikidata Q6085377
properties
Molar mass	102.13 g mol −1
Physical state	liquid
density	0.88 g cm −3
Melting point	−96 ° C
boiling point	98 ° C
Vapor pressure	42.9 hPa (20 ° C)
solubility	slightly soluble in water (10 g l −1 at 20 ° C) miscible with ethanol and diethyl ether soluble in organic solvents
Refractive index	1.385 (20 ° C)
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary danger H and P phrases H: 225-319-335 P: 210-280-304 + 340 + 312-305 + 351 + 338-337 + 313-403 + 235
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Isobutyl formate is a chemical compound from the group of carboxylic acid esters .

Occurrence

Isobutyl formate has been found in pineapples , apples , vinegar , wheat bread , beer , cognac and rum .

Extraction and presentation

Isobutyl formate can be obtained by reacting isobutyl alcohol and carbon monoxide in the presence of sodium isobutylate at 110 ° C. and 400 atm.

properties

Isobutyl formate is a highly flammable, colorless liquid with a pungent odor, which is sparingly soluble in water. It decomposes when heated.

use

Isobutyl formate is used as a flavoring agent.

safety instructions

The vapors of isobutyl formate can form an explosive mixture with air ( flash point 5 ° C, ignition temperature 320 ° C).

Individual evidence

1. ↑ ^{a b c d e f g h i j k} Entry on isobutyl formate in the GESTIS substance database of the IFA , accessed on December 30, 2018(JavaScript required) .
2. ↑ ^{a b c d e} George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2004, ISBN 978-1-4200-3787-6 , pp. 926 ( limited preview in Google Book search).
3. ↑ Data sheet isobutyl formats, 97% from Sigma-Aldrich , accessed on December 30, 2018 ( PDF ).
4. ↑ Entry on isobutyl formats in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 30, 2018. Manufacturers or distributors can expand the harmonized classification and labeling .