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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Physical & Chemical properties

Boiling point

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Administrative data

Link to relevant study record(s)

boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Reason / purpose for cross-reference:
reference to other study
no guideline followed
Principles of method if other than guideline:
Handbook data only. No guideline or method indicated.
GLP compliance:
not specified
Type of method:
other: no data
Key result
Atm. press.:
1 Bar
Decomp. temp.:
> 700 °C
Sodium cyanate decomposes. Determination of boiling point technically not feasible.

Description of key information

Sodium cyanate decomposes to NaCN, Na2CO3, N2 and CO at a temperature over 700°C. Determination of boiling point technically not feasible. 

Key value for chemical safety assessment

Additional information

Weight of evidence approach:

2 different handbooks show the same value for boiling point (decomposition). This value is thus regarded as reliable.