Bis (2-ethylhexyl) phosphate

Structural formula
Simplified structural formula - complex mixture of stereoisomers
General
Surname	Bis (2-ethylhexyl) phosphate
other names	Bis (2-ethylhexyl) hydrogen phosphate ( IUPAC ) Phosphoric acid bis (2-ethylhexyl) ester HDEHP Bis (2-ethylhexyl) phosphoric acid Di (2-ethylhexyl) phosphoric acid DEHPA
Molecular formula	C 16 H 35 O 4 P
Brief description	colorless liquid with a sweet odor
External identifiers / databases
CAS number 298-07-7 EC number 206-056-4 ECHA InfoCard 100.005.507 PubChem 9275 ChemSpider 8918 Wikidata Q5269963
properties
Molar mass	322.43 g mol −1
Physical state	liquid
density	0.97 g cm −3
Melting point	−50 ° C
boiling point	48 ° C (16 hPa)
Vapor pressure	<0.1 hPa (20 ° C)
solubility	very sparingly soluble in water (<1 g l −1 at 20 ° C)
Refractive index	1.4420 (20 ° C)
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 312-314 P: 280-305 + 351 + 338-310
Toxicological data	4770 mg kg −1 ( LD 50 ,  rat ,  oral ) 1210 mg kg −1 ( LD 50 ,  rabbit ,  transdermal )
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

Bis (2-ethylhexyl) phosphate is a chemical compound from the group of phosphoric acid esters .

Extraction and presentation

Bis (2-ethylhexyl) phosphate can be obtained by reacting phosphorus oxychloride and 2-ethylhexanol in the presence of a catalyst .

properties

Bis (2-ethylhexyl) phosphate is a flammable, difficult to ignite, colorless liquid with a sweet odor that is very difficult to dissolve in water. It decomposes when heated above 240 ° C.

use

Bis (2-ethylhexyl) phosphate is used as a lubricant additive, corrosion inhibitor, and metal extractant. It is involved in the solvent extraction of uranium salts and rare earth metals . It is also used as a plasticizer and as a solvent in plastics synthesis.

Individual evidence

1. ↑ ^{a b c d e f g h i j k l} Entry on bis (2-ethylhexyl) phosphate in the GESTIS substance database of the IFA , accessed on March 25, 2020(JavaScript required) .
2. ↑ ^{a b} Data sheet bis (2-ethylhexyl) phosphate, 95% from AlfaAesar, accessed on March 25, 2020 ( PDF )(JavaScript required) .
3. ↑ Google Patents: CN105440072A - Preparation method for bis (2-ethylhexyl) phosphate - Google Patents , accessed March 25, 2020.