Formic acid n- butyl ester

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Structural formula
Structural formula of n-butyl formate
General
Surname Formic acid n- butyl ester
other names
  • Butyl formate
  • Butyl formate
  • Butyl methanate
Molecular formula C 5 H 10 O 2
Brief description

colorless liquid with an alcohol-like odor

External identifiers / databases
CAS number 592-84-7
EC number 209-772-5
ECHA InfoCard 100.008.885
PubChem 11614
ChemSpider 11125
Wikidata Q734815
properties
Molar mass 102.13 g mol −1
Physical state

liquid

density

0.92 g cm −3

Melting point

−96 ° C

boiling point

106 ° C

Vapor pressure

29 hPa (20 ° C)

solubility
  • hydrolyzed in water (7.6 g l −1 at 27 ° C)
  • miscible with ethanol , diethyl ether and most organic solvents
Refractive index

1.389 (20 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
02 - Highly / extremely flammable 07 - Warning

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

Formic acid n- butyl ester is a chemical compound from the group of carboxylic acid esters .

Occurrence

Formic acid n- butyl ester was detected in fresh apples , strawberries , cloudberries , sherry and parmesan .

Extraction and presentation

Formic acid n- butyl ester can be obtained by azeotropic distillation of formic acid and n- butyl alcohol with isopropyl formate or by boiling n- butyl alcohol and formamide in the presence of zinc chloride , zinc sulfate or mercury (II) chloride .

properties

Formic acid n- butyl ester is a highly flammable, volatile, colorless liquid with an alcohol-like odor that hydrolyzes in water. In a lower concentration, the compound has a fruity, plum-like odor and taste.

use

Formic acid n- butyl ester is used as a flavoring substance. The compound is also being investigated as a potential biofuel. It is also rarely used as a solvent for fats, oils, cellulose nitrate , some cellulose ethers and cellulose esters , and also for many natural and synthetic binders.

safety instructions

The vapors of formic acid n- butyl ester can form an explosive mixture with air ( flash point 18 ° C, ignition temperature 265 ° C).

Individual evidence

  1. ↑ a b c d e f g h i j k Entry on n-butyl formate in the GESTIS substance database of the IFA , accessed on December 11, 2018(JavaScript required) .
  2. ↑ a b c d George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2016, ISBN 978-1-4200-9086-4 , pp. 205 ( limited preview in Google Book search).
  3. ↑ Data sheet Butyl formats, ≥97%, FG at Sigma-Aldrich , accessed on December 11, 2018 ( PDF ).
  4. ↑ Entry on butyl formate 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 .
  5. ↑ EU: IMPLEMENTING REGULATION (EU) No. 872/2012 OF THE COMMISSION of October 1, 2012 laying down the list of flavoring substances according to Regulation (EC) No. 2232/96 of the European Parliament and of the Council, including this list in Annex I. of Regulation (EC) No. 1334/2008 of the European Parliament and of the Council as well as repealing Regulation (EC) No. 1565/2000 of the Commission and Decision 1999/217 / EC of the Commission , accessed on December 11, 2018
  6. ↑ Stijn Vranckx, Joachim Beeckmann u. a .: An experimental and kinetic modeling study of n-butyl formate combustion. In: Combustion and Flame. 160, 2013, p. 2680, doi : 10.1016 / j.combustflame.2013.06.012 .
  7. ↑ Entry on butyl formate. In: Römpp Online . Georg Thieme Verlag, accessed on December 11, 2018.