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Physical & Chemical properties

Boiling point

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Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1989
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
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
Decomposition:
yes
Decomp. temp.:
>= 700 - <= 900 °C
Remarks on result:
not determinable
Conclusions:
Postassium cyanate decomposes at 700-900°C. Determination of boiling point technically not feasible.
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1997
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
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
Decomposition:
yes
Decomp. temp.:
>= 700 - <= 900 °C
Remarks on result:
not determinable
Conclusions:
Postassium cyanate decomposes at 700-900°C. Determination of boiling point technically not feasible.
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1993
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
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
Decomposition:
yes
Decomp. temp.:
>= 700 - <= 900 °C
Remarks on result:
not determinable
Conclusions:
Postassium cyanate decomposes at 700-900°C. Determination of boiling point technically not feasible.

Description of key information

Postassium cyanate decomposes at 700-900°C. Determination of boiling point technically not feasible. 
In addition, determination of boiling point is not required according to Annex VII REACH Regulation if melting point is above 300°C.

Key value for chemical safety assessment

Additional information

Weight of evidence approach:

3 different handbooks show the same result for the determination of the boiling point, which is regarded as reliable. The substance decomposes at 700-900°C. Determination of a boiling point is technically not feasible.