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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Physical & Chemical properties

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Link to relevant study record(s)

Description of key information

Silver cyanide showed no signs of self-ignition or self-heating when the test item was held at 140°C for 24 hours. However, when the test item was heated from 140 to 400°C, the sample temperature exceeded the oven temperature by greater than 60°C at an oven temperature of approximately 355°C.

Key value for chemical safety assessment

Additional information

This is a GLP-compliant, guideline study which is considered suitable for use as the key study for this endpoint (Harlan Laboratories 2011). Self-heating was assessed using a modified test method based on UN test N4 and EU test A16, which is considered to produce equally robust results as the standard method but uses less volume of test substance. Due to the limited availability and high cost of the test material, which may not always be manufactured on a regular basis, this modified method was used.