Dicyclohexyl phthalate

Structural formula
General
Surname	Dicyclohexyl phthalate
other names	Dicyclohexyl phthalate 1,2-benzene dicarboxylic acid dicyclohexyl ester DCHP
Molecular formula	C 20 H 26 O 4
Brief description	colorless and odorless solid
External identifiers / databases
CAS number 84-61-7 EC number 201-545-9 ECHA InfoCard 100.001.405 PubChem 6777 Wikidata Q1210373
properties
Molar mass	330.42 g mol −1
Physical state	firmly
density	1.15 g cm −3
Melting point	62-64 ° C
boiling point	200–235 ° C (5.3 hPa )
Vapor pressure	0.39 mPa (50 ° C)
solubility	practically insoluble in water (0.2 mg l −1 at 20 ° C) soluble in ethanol , chloroform and diethyl ether
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary danger H and P phrases H: 317-360D-412 P: 201-280-302 + 352-308 + 313
Authorization procedure under REACH	of particular concern : toxic for reproduction ( CMR ), serious effects on human health are considered likely
Toxicological data	34400 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 .

Dicyclohexyl phthalate is a chemical compound from the group of phthalates , which is in the form of a white, crystalline powder .

properties

Dicyclohexylphthalate vapors are heavier than air.

use

Dicyclohexyl phthalate is used as plasticizers of resins (for example, for. PVC , epoxy and polyester - resins ) was used. For this it is often used in a mixture with dibenzoyl peroxide . In alkyd resins and cellulose nitrates it improves the light and weather stability, in plastics the chemical and physical properties.

safety instructions

If dicyclohexyl phthalate is heated above its flash point of 180 ° C in air, the formation of explosive vapors is possible.

On April 17, 2018, the European Commission identified DCHP as SVHC ("Substance of very high concern") because of its reproductive and endocrine disrupting properties .

In 2017, dicyclohexyl phthalate was included by the EU in the Community's rolling action plan ( CoRAP ) in accordance with Regulation (EC) No. 1907/2006 (REACH) as part of substance evaluation . The effects of the substance on human health and the environment are re-evaluated and, if necessary, follow-up measures are initiated. The uptake of dicyclohexyl phthalate was caused by concerns about environmental exposure and widespread use and as a potential endocrine disruptor . The re-evaluation has been running since 2017 and is carried out by Sweden . In order to be able to reach a final assessment, further information was requested.

Individual evidence

1. ↑ ^{a b c d e f g h} Entry on dicyclohexyl phthalate in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .
2. ↑ Data sheet dicyclohexyl phthalate (PDF) from Merck , accessed on June 15, 2017.
3. ↑ ^{a b} data sheet dicyclohexyl phthalate (PDF; 140 kB) from BG Chemie.
4. ↑ Entry on dicyclohexyl phthalate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on June 17, 2017. Manufacturers or distributors can expand the harmonized classification and labeling .
5. ↑ Entry in the SVHC list of the European Chemicals Agency , accessed on August 11, 2018.
6. ↑ Implementing decision (EU) 2018/636 of the Commission on the identification of dicyclohexyl phthalate (DCHP) as a substance of very high concern in accordance with Article 57 letters c and f of Regulation (EC) No. 1907/2006 of the European Parliament and of the Council .
7. ↑ Community rolling action plan ( CoRAP ) of the European Chemicals Agency (ECHA): Dicyclohexyl phthalate , accessed on March 26, 2019.