Registration Dossier
Registration Dossier
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EC number: 234-842-7 | CAS number: 12036-22-5
Appearance / physical state / colour
Administrative data
Link to relevant study record(s)
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- not reported
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Valid with restriction. Data from handbook or collection of data.
- Principles of method if other than guideline:
- no principles of method available; handbook data
- GLP compliance:
- not specified
- Physical state at 20°C and 1013 hPa:
- solid
- Remarks:
- brown monoclinic crystal
- Form:
- crystalline
- Colour:
- brown
- Substance type:
- inorganic
- Conclusions:
- Tungsten (IV) oxide is a solid inorganic substance which forms brown, monoclinic crystals.
- Executive summary:
According the CRC Handbook for Chemistry and Physics Tungsten (IV) oxide is a solid inorganic substance which forms brown, monoclinic crystals.
- Endpoint:
- appearance / physical state / colour
- 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 for cross-reference:
- reference to same study
- Principles of method if other than guideline:
- information on methods not reported; safety data sheet
- GLP compliance:
- no
- Physical state at 20°C and 1013 hPa:
- solid
- Form:
- powder
- Colour:
- brown
- Odour:
- odourless
- Substance type:
- inorganic
- Conclusions:
- Tungsten dioxide is an odourless, brown powder.
- Executive summary:
Tungsten dioxide is reported to be an odourless, brown powder in the safety data sheet provided by H.C. Starck.
Referenceopen allclose all
Description of key information
According the CRC Handbook for Chemistry and Physics (92nd edition) Tungsten (IV) oxide is a solid inorganic substance which forms brown, monoclinic crystals. The same information is reported in the safety data sheet.
Key value for chemical safety assessment
- Physical state at 20°C and 1013 hPa:
- solid
Additional information
Information on the appearance, physical state and colour of tungsten dioxide are available in the CRC Handbook for chemistry and physics and in the safety data sheet.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
