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EC number: 204-616-2
CAS number: 123-30-8
The test item contains a
residual moisture of 0.7 wt.-% which was determined by drying the test
item under reduced pressure (approximately 100 mbar) at a temperature of
The pure product indicated a
weak exothermal process at 150 °C followed directly by an endothermic
process (e.g. melting). In the measurement up to about 400 °C the
substance flowed out of the basket. For the pure substance no
self-ignition was detected. The product in mixture with Kieselguhr
indicates a self ignition starting at 140 °C.
In the investigation of
self-ignition in the Grewer-oven for the pure test item a weak
exothermal process was detected at a temperature of 150 °C directly
followed by an endothermic process at app. 280 °C. The temperature
increase during the exothermal process was negligible. The endothermic
process can be attributed to the melting of the test item (melting point
of the test item 190 °C). After the measurement the basket of the pure
test item is empty. The complete test item flowed out of the basket.
This indicates that the test item liquefied over the measurement up to
400 °C and flowed out of the wire basket before the self-heating took
For the test item in mixture
with Kieselguhr an exothermal process was determined at a temperature of
140 °C leading to a maximum temperature of app. 240 °C. A second
exothermal effect was observed at 210 °C leading to a maximum
temperature of > 500 °C.
the results of the Gewer-Oven experiment.
Onset Selfignition / °C
Maximum temperature / °C
Pure test item
Test item in mixturewith Kieselguhr (1:1)
App. 240> 500
The test item has no self-ignition temperature according to EC 440/2008, Part A, A.16. up to the melting of the test item or the maximum temperature of 400 °C, respectively.
The test item has not to be classified as self-heating substance in
Class 4 Division 4.2 according to the UN-Transport Regulations.
The test item has not to be assigned as a self-heating substances
according to EC 1272/2008 (CLP-Guideline) Annex 1: 2.11.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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