Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 205-599-4 | CAS number: 143-33-9
Auto flammability
Administrative data
Link to relevant study record(s)
Description of key information
Waiver
Key value for chemical safety assessment
Additional information
According to Regulation (EC) No.1907/2006, Annex XI, Section 1, the testing regime may be adapted because testing does not appear scientifically necessary. Data exists on the melting point of sodium cyanide, equal to 561.7 degrees C. According to Regulation (EC) No. 440/2008, this test method on solids is intended as a preliminary screening test on self-heating properties which can lead to self-ignition. The test involves heating the solid substance to a temperature of 400 degrees C in an oven. The melting point of NaCN is higher than 400 degrees C, indicating that self-heating up to 400 degrees C does not occur. This test is not scientifically justified.
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.
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