Butyl isocyanate

Structural formula
General
Surname	n -butyl isocyanate
other names	BuI; Butyl isocyanate; Isocyanatobutane;
Molecular formula	C 5 H 9 NO
Brief description	colorless tear-irritating liquid with a pungent odor
External identifiers / databases
EC number	203-862-8
ECHA InfoCard	100.003.512
PubChem	8110
Wikidata	Q15632798
properties
Molar mass	99.13 g · mol -1
Physical state	liquid
density	0.89 g cm −3
Melting point	−75 ° C ° C
boiling point	115 ° C
Vapor pressure	14 hPa (20 ° C)
solubility	decomposes in water, alcohols and acids
Refractive index	1.4060 (20 ° C)
safety instructions
H and P phrases	H: 225-302 + 312-330-314-334
	EUH: 014
	P: 210-260-280-301 + 330 + 331-302 + 352-304 + 340-305 + 351 + 338-342 + 311-308 + 310-403 + 235
Toxicological data	600 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 . Refractive index: Na-D line , 20 ° C

Butyl isocyanate is the butyl ester of isocyanic acid . It is a very reactive chemical compound that z. B. used in the production of iodocarb . Like isocyanic acid and the other isocyanates , it is very toxic. Butyl isocyanate polymerizes when heated. The heat of decomposition determined by DSC is −55 kJ mol ⁻¹ or −550 kJ kg ⁻¹ .

use

Butyl isocyanate occurs as outgassing from PU adhesives .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on butyl isocyanate in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .
↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-80.
↑ Grewer, T .; Klais, O .: Exothermic decomposition - investigations of the characteristic material properties , VDI-Verlag, series "Humanisierung des Arbeitsleben", Volume 84, Düsseldorf 1988, ISBN 3-18-400855-X , p. 9.
↑ Emission of isocyanates when processing polyurethane adhesives ( Memento from December 26, 2015 in the Internet Archive ) (PDF; 980 kB)

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

[CRC90_3_80-2] David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-80.

[Grewer-3] Grewer, T .; Klais, O .: Exothermic decomposition - investigations of the characteristic material properties , VDI-Verlag, series "Humanisierung des Arbeitsleben", Volume 84, Düsseldorf 1988, ISBN 3-18-400855-X , p. 9.

[wirts-4] Emission of isocyanates when processing polyurethane adhesives ( Memento from December 26, 2015 in the Internet Archive ) (PDF; 980 kB)