Registration Dossier

Physical & Chemical properties

Boiling point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling 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
Boiling pt.:
1 730 °C
Atm. press.:
101.325 kPa
Conclusions:
The boiling point of tungsten (IV) oxide is 1730°C.
Executive summary:

According the CRC Handbook for Chemistry and Physics the boiling point of Tungsten (IV) oxide is 1730°C.

Description of key information

According to Annex VII section 7.3, Column 2 of regulation (EC) 1907/2006, this study does not need to be conducted for solids which either melt above 300°C or decompose before boiling. In such cases the boiling point under reduced pressure may be estimated or measured.

Nevertheless the boiling point of tungsten dioxide is reported in the CRC handbook for Chemistry and Physics (92nd edition) to be 1730°C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
1 730 °C

Additional information