Butyl carbamate

Structural formula
General
Surname	Butyl carbamate
other names	Butyl carbamic acid; Butyl carbamic acid; Butyl urethane;
Molecular formula	C 5 H 11 NO 2
Brief description	white solid with a faint odor
External identifiers / databases
EC number	209-751-0
ECHA InfoCard	100,008,866
PubChem	11596
ChemSpider	11108
Wikidata	Q27284296
properties
Molar mass	117.15 g mol −1
Physical state	firmly
density	0.97 g cm −3
Melting point	53-55 ° C
boiling point	203-204 ° C
solubility	hardly soluble in water (approx. 1 g l −1 at 20 ° C); soluble in alcohols, esters and ketones; very soluble in ethanol ; slightly soluble in chloroform ; easily soluble in fat;
safety instructions
H and P phrases	H: 302-317-318
	P: 280-305 + 351 + 338
Toxicological data	690 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Butyl carbamate is a chemical compound from the group of carbamates .

Extraction and presentation

Butyl carbamate can be obtained by alcoholysis of carbamoyl chlorides and aminolysis of chloroformates, as well as by reaction of urea or nitrate with alcohols in the presence of heavy metals. It is also possible to produce it by reacting alcohols with isocyanates , transamidation of simple carbamates with higher amines , transesterification of lower alkyl carbamates with higher alcohols , aminolysis of dialkyl carbonates and rearrangement of omega-alkoxyalkyl and omega-phenoxyalkylcarbamoyl chlorides.

properties

Butyl carbamate is a flammable, difficult to ignite, crystalline, white solid with a faint odor that is sparingly soluble in water.

use

Butyl carbamate is used as an intermediate in the manufacture of synthetic resins.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on butyl carbamate in the GESTIS substance database of the IFA , accessed on March 18, 2020(JavaScript required) .
↑ ^a ^b ^c ^d ^e ^f ^g Toxicological assessment of butynediol (PDF) at the professional association raw materials and chemical industry (BG RCI), accessed on March 18, 2020.

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on butyl carbamate in the GESTIS substance database of the IFA , accessed on March 18, 2020(JavaScript required) .

[ToxBew-2] ↑ ^a ^b ^c ^d ^e ^f ^g Toxicological assessment of butynediol (PDF) at the professional association raw materials and chemical industry (BG RCI), accessed on March 18, 2020.