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Physical & Chemical properties

Melting point / freezing point

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
no data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
Valid with restriction. Data from handbook
Principles of method if other than guideline:
no principles of method available; handbook data
GLP compliance:
not specified
Type of method:
other: handbook data
Melting / freezing pt.:
ca. 1 500 °C
Conclusions:
The melting point of tungsten (IV) oxide is ca. 1500°C.
Executive summary:

According the CRC Handbook for Chemistry and Physics the melting point of Tungsten (IV) oxide is ca. 1500°C.

Endpoint:
melting point/freezing point
Type of information:
other: safety data sheet
Adequacy of study:
supporting study
Study period:
2011
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Remarks:
Secondary literature. Safety data sheet.
Reason / purpose:
reference to same study
Principles of method if other than guideline:
information on methods is not reported ; safety data sheet
GLP compliance:
no
Type of method:
other: no data
Melting / freezing pt.:
1 500 °C
Remarks on result:
other: no further details on determination of melting point are reported; safety data sheet

no data

Conclusions:
The melting point of tungsten dioxide is reported to be 1500 °C.
Executive summary:

In the safety data sheet of tungsten dioxide provided by H.C. Starck the melting is reported to be 1500 °C.

Description of key information

The CRC handbook for chemistry and physics and the safety data sheet report the melting of tungsten dioxide to be 1500 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
1 500 °C

Additional information

According the CRC Handbook for Chemistry and Physics (92nd edition) the melting point of Tungsten (IV) oxide is ca. 1500°C. The same is reported in the safety data sheet.