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Physical & Chemical properties

Vapour pressure

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Description of key information

KCN has essentially no/negligible vapour pressure at 20 °C.

Key value for chemical safety assessment

Vapour pressure:
180 Pa
at the temperature of:
634.5 °C

Additional information

The dry salt of cyanide has no/negligible vapour pressure. A vapour pressure of 1.8 hPa at 634.5 °C was reported for KCN by DeGussa AG in 1993 in a IUCLID4 submission for ESIS.