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Physical & Chemical properties

Appearance / physical state / colour

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Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data from peer-reviewed handbook or collection of data.
Reason / purpose:
reference to same study
Principles of method if other than guideline:
Data in this peer-reviewed publication were taken from many sources, including both compilations and primary literature. Where conflicts were found, the value deemed most reliable was chosen for inclusion in the handbook. Reference sources were not provided for this parameter, nor was the experimental method.
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
canary yellow, heavy powder; dark orange when heated
Substance type:
inorganic
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data from peer-reviewed handbook or collection of data.
Reason / purpose:
reference to same study
Principles of method if other than guideline:
Data in this peer-reviewed publication were taken from many sources, including both compilations and primary literature. Where conflicts were found, the value deemed most reliable was chosen for inclusion in the handbook. Reference sources were not provided for this parameter, nor was the experimental method.
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
yellow
Substance type:
inorganic

Description of key information

Tungsten trioxide is a solid yellowish powder

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

Colour: canary yellow, heavy powder; dark orange when heated