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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only short abstract in english is available, article in russian; however key information is available.
Principles of method if other than guideline:
Only short abstract in english is available, article in russian, therefore no detailed description of method is available.
GLP compliance:
not specified
Type of method:
thermal analysis
Melting / freezing pt.:
600 °C
Atm. press.:
760 mm Hg
Remarks on result:
other: transition is reported
Melting / freezing pt.:
780 °C
Atm. press.:
760 mm Hg
Decomposition:
yes
Decomp. temp.:
> 1 100 °C
Conclusions:
The stability of sodium selenate was studied by thermographic and y-ray methods. Polymrohic transition is reported at 600°C, melting at 700 °C and rapidly decomposition above 1100 °C.

Description of key information

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
780 °C

Additional information