Registration Dossier
Registration Dossier
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EC number: 205-599-4 | CAS number: 143-33-9
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
The value for the Henry's Law Constant is based on read-across from the value for HCN, based on the behavior of free cyanide in solution from sodium cyanide salt.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 13.48
- at the temperature of:
- 20 °C
Additional information
Henry's Law constant, with a value of 13.48 Pa.m3/mol, was derived from a report of the gas-aqueous solubility of HCN at pH 4 and 25 degrees C. This suggests that HCN is not very soluble in water at low partial pressures.
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