Propyl formate

Structural formula
General
Surname	Propyl formate
other names	Propyl methanoate ( IUPAC ); Propyl formate; Propyl methanoate;
Molecular formula	C 4 H 8 O 2
Brief description	colorless liquid with a fruity odor
External identifiers / databases
EC number	203-798-0
ECHA InfoCard	100.003.454
PubChem	8073
Wikidata	Q421045
properties
Molar mass	88.11 g mol −1
Physical state	liquid
density	0.91 g cm −3 (20 ° C)
Melting point	−93 ° C
boiling point	81 ° C
Vapor pressure	84 hPa (20 ° C)
solubility	in water (28 g l −1 at 20 ° C)
Refractive index	1.375-1.38 (20 ° C)
safety instructions
H and P phrases	H: 225-319-335-336
	P: 210-261-305 + 351 + 338
MAK	3980 mg kg −1 (oral, rat)
	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

Ameisensäurepropylester ( IUPAC : Propylmethanoat , also propyl ist) of the ester of n -propanol and formic acid .

presentation

Propyl formate can be prepared from formic acid and n- propanol by esterification .

properties

Propyl formate can be saponified by reaction with water in the reverse of the formation reaction , i.e. H. be split. The hydrolysis can be catalyzed by both acids and bases . The thermal decomposition of propyl formate at 360–400 ° C initially yields propene and formic acid, which then forms further decomposition products.

safety instructions

Propyl formate forms explosive mixtures with air in the concentration range from 2.1 to 7.8%. Its flash point is −3 ° C, the auto-ignition temperature is 360 ° C.

Web links

IR spectrum of propyl formate
¹ H-NMR spectrum of propyl formate ( Memento from June 21, 2012 in the Internet Archive )

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Entry on propyl formate in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .

↑ data sheet propyl format at The Good Cents Company .

↑ Entry on Propyl formats in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .

↑ Data sheet formic acid propyl ester from Acros, accessed on August 9, 2011.

↑ PM Jenner, EC Hagan, JM Taylor, EL Cook, OG Fitzhugh: Food flavors and compounds of related structure I. Acute oral toxicity. In: Food and Cosmetics Toxicology , 1964 , 2 , pp. 327-343 ( doi: 10.1016 / S0015-6264 (64) 80192-9 ).

↑ AM. Udrea, C. Bolcu, D. Modra: The obtain of Propyl Format through the Esterification of the Formic Acid and of the Propylic Alcohol. In: Annals of West University of Timisoara: Series of Chemistry , 2008 .

^ RB Anderson, HH Rowley: Kinetics of the thermal decomposition of n-propyl and isopropyl formats. In: J. Phys. Chem. , 1943 , 47 (6), pp. 454-463. doi : 10.1021 / j150429a006 .

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Entry on propyl formate in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .

[GCC-2] ta sheet propyl format at The Good Cents Company .

[CLP_100.003.454-3] Entry on Propyl formats in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .