Triisobutyl phosphate

Structural formula
General
Surname	Triisobutyl phosphate
other names	TiBP Phosphoric acid tri-isobutyl ester
Molecular formula	C 12 H 27 O 4 P
Brief description	colorless to yellowish liquid with a characteristic odor
External identifiers / databases
CAS number 126-71-6 EC number 204-798-3 ECHA InfoCard 100.004.363 PubChem 31355 Wikidata Q15632813
properties
Molar mass	266.32 g mol −1
Physical state	liquid
density	0.98 g cm −3
Melting point	<−60 ° C
boiling point	decomposes at 272 ° C
Vapor pressure	2 hPa (103 ° C)
solubility	very heavy in water (0.26 g l −1 at 20 ° C)
Refractive index	1.4195
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 317-412 P: 273-280-302 + 352
Toxicological data	> 5000 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

Triisobutyl phosphate is a phosphoric acid ester that is used as a defoamer . It is isomeric to tri- n- butyl-phosphate .

presentation

Triisobutyl phosphate can be obtained by reacting phosphorus trichloride and sodium isobutylate.

Individual evidence

1. ↑ ^{a b c d e f g h i} Entry on triisobutyl phosphate in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .
2. ↑ Data sheet tri-isobutyl phosphate
3. ↑ Defoamers from Lanxess ( Memento from September 3, 2013 in the web archive archive.today ).
4. ^ Friedrich Konrad Beilstein: Beilstein's handbook of organic chemistry . 1918, Verlag Edward Bros., 4th edition 1943, 1st volume, p. 377. Full text