Tris (2-ethylhexyl) trimellitate

Structural formula
Simplified structural formula - mixture of eight stereoisomers
General
Surname	Tris (2-ethylhexyl) trimellitate
other names	Tris (2-ethylhexyl) benzene-1,2,4-tricarboxylate 1,2,4-benzenetricarboxylic acid tris (2-ethylhexyl) ester TOTM
Molecular formula	C 33 H 54 O 6
Brief description	yellowish liquid
External identifiers / databases
CAS number 3319-31-1 EC number 222-020-0 ECHA InfoCard 100.020.019 PubChem 18725 Wikidata Q27256655
properties
Molar mass	546.78 g mol −1
Physical state	liquid
density	0.988 g cm −3
Melting point	−43 ° C
boiling point	414 ° C
Vapor pressure	0.21 mbar (200 ° C)
solubility	practically insoluble in water (0.1 g l −1 at 25 ° C)
Refractive index	1.485 (20 ° C)
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
Toxicological data	> 60 g kg −1 ( LD 50 ,  mouse ,  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

Tris (2-ethylhexyl) trimellitate is a plasticizer that is used to replace phthalates . It is a derivative of trimellitic acid .

properties

Tris (2-ethylhexyl) trimellitate is a flammable, difficult to ignite, yellowish liquid that is practically insoluble in water.

use

TOTM is used as a plasticizer in PVC parts such as hoses, cable and wire sheathing as well as in vehicle interior applications. It is also used as an additive in printing chemicals. It is one of the few plasticizers used in PVC medical devices.

Safety instructions / toxicology

The non-volatile chemical is non-toxic to mammals .

Tris (2-ethylhexyl) trimellitate was included by the EU in 2012 in accordance with Regulation (EC) No. 1907/2006 (REACH) as part of substance evaluation in the Community's ongoing action plan ( CoRAP ). The effects of the substance on human health and the environment are re-evaluated and, if necessary, follow-up measures are initiated. The reasons for the uptake of tris (2-ethylhexyl) trimellitate were concerns about high (aggregated) tonnage and widespread use as well as the dangers arising from a possible assignment to the group of PBT / vPvB substances. The reassessment took place from 2012 and was carried out by Austria .

Individual evidence

1. ↑ ^{a b c d e f g h i} Entry for CAS no. 3319-31-1 in the GESTIS substance database of the IFA , accessed on April 21, 2017(JavaScript required) .
2. ↑ BASF: Palatinol ® TOTM Tri Octyl Trimellitate ( Memento from April 21, 2017 in the Internet Archive )
3. ↑ Data sheet Trioctyl trimellitate, 99% from Sigma-Aldrich , accessed on April 21, 2017 ( PDF ).
4. ↑ fishersci: Material Safety Data Sheet Tris (2-ethylhexyl) trimellitate, 98%
5. ↑ Britt E. Erickson: Regulators And Retailers Raise Pressure On Phthalates , Chemical & Engineering News 93 (25), 2015, pp. 11-15.
6. ↑ ^{a b} eastman.com: Eastman ™ TOTM Plasticizer , accessed on 21 April 2017th
7. ↑ Werner Baumann, Thomas Rothardt: Printing chemicals data and facts on environmental protection 2nd, expanded and revised edition . Springer-Verlag, 2013, ISBN 978-3-642-58474-9 , pp. 585 ( limited preview in Google Book search).
8. ^ AS Wilson: Plasticisers Selection, Applications and Implications . iSmithers Rapra Publishing, 1996, ISBN 978-1-85957-063-0 , pp. 15 ( limited preview in Google Book search).
9. ↑ Community rolling action plan ( CoRAP ) of the European Chemicals Agency (ECHA): tris (2-ethylhexyl) -benzene-1,2,4-tricarboxylate , accessed on March 26, 2019.