Tris (nonylphenyl) phosphite

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Structural formula
Structural formula of tris (4-nonylphenyl) phosphite
General
Surname	Tris (nonylphenyl) phosphite
other names	TNPP
Molecular formula	C 45 H 69 O 3 P
Brief description	colorless to yellowish liquid with a faint odor
External identifiers / databases
CAS number 26523-78-4 (unspecified isomer) 16784-72-8 (tris (2-nonylphenyl) phosphite) 3050-88-2 (tris (4-nonylphenyl) phosphite) EC number 247-759-6 ECHA InfoCard 100.043.402 PubChem 85595 Wikidata Q2687174
properties
Molar mass	689.02 g mol −1
Physical state	liquid
density	0.98 g cm −3
Melting point	6 ° C
boiling point	180 ° C (4 hPa)
Vapor pressure	<1 hPa (20 ° C)
solubility	practically insoluble in water
Refractive index	1.528 (20 ° C)
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary Caution H and P phrases H: 315-317-319-410 P: 273-280-302 + 352-305 + 351 + 338-391-501
Authorization procedure under REACH	Of particular concern: there are likely to be serious effects on the environment
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

Tris (nonylphenyl) phosphite is a chemical compound from the group of phosphorous acid esters (esters of phosphorous acid ).

Extraction and presentation

Tris (nonylphenyl) phosphite can be obtained by reacting nonylphenol and phosphorus trichloride in the presence of an organic catalyst.

properties

Tris (nonylphenyl) phosphite is a flammable, hardly inflammable, colorless to yellowish liquid with a faint odor. It is practically insoluble in water and slowly decomposes. Tris (nonylphenyl) phosphite has a flash point of 207 ° C, a decomposition temperature of> 220 ° C and an ignition temperature of 439 ° C.

use

Tris (nonylphenyl) phosphite is mainly used as a stabilizer and antioxidant in the processing of various plastics ( PVC , LLDPE , HDPE and rubber ), where it is used in concentrations between 0.05 and 3%.

safety instructions

A hydrolysis and degradation product of tris (nonylphenyl) phosphite is nonylphenol , which is discussed because of its hormone-like effect.

Individual evidence

1. ↑ ^{a b c d e f g h i j} Entry on tris (nonylphenyl) phosphite in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
2. ↑ Tris (nonylphenyl) phosphite data sheet from Sigma-Aldrich , accessed on August 7, 2018 ( PDF ).
3. ↑ Entry on tris (nonylphenyl) phosphite in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 31, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .
4. ↑ Entry in the SVHC list of the European Chemicals Agency , accessed on April 21, 2020.
5. ↑ ^{a b} Entry on Tris (nonylphenyl) phosphite in the Hazardous Substances Data Bank , accessed on August 7, 2018.
6. ↑ Ralph-Dieter Maier, Michael Schiller: Handbuch Kunststoff Additive . Carl Hanser Verlag GmbH Co KG, 2016, ISBN 978-3-446-45216-9 , p. 24 ( limited preview in Google Book search).
7. ↑ Julia Danoci: Assessment of the hazard potential of nonylphenol for the environment and the food chain with special consideration of the endocrine effect . GRIN Verlag, 2009, ISBN 978-3-640-36802-0 , pp. 6 ( limited preview in Google Book search).