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Physical & Chemical properties

Appearance / physical state / colour

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Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Remarks:
The description of the substance comes from study reports on other physico-chemical endpoints determined in accordance with internationally-recognized standard guidelines. In these reports, the substance is adequately defined and a certificate of analysis is available.
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Demangel (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Mathiak (2021).
Reason / purpose for cross-reference:
reference to same study
Remarks:
Other physico-chemical endpoints are covered in the study report of Mathiak (2021).
Qualifier:
no guideline required
Principles of method if other than guideline:
Visual inspection.
GLP compliance:
yes
Remarks:
The test substance is described in the context of GLP-compliant physico-chemical studies in the study report of Demangel (2021). The description is confirmed in the study report of Mathiak (2021) which concerns a non-GLP compliant physico-chemical study.
Physical state at 20°C and 1013 hPa:
solid
Key result
Form:
solid: particulate/powder
Colour:
White to beige
Substance type:
inorganic
Conclusions:
Cerium gadolinium oxide is an inorganic solid appearing under the form of a white to beige powder.
Executive summary:

The test substance was described as a white powder in the context of GLP-compliant physico-chemical studies (Demangel, 2021). A similar description as a white to beige powder was reported in the study report of Mathiak (2021) which concerns a non-GLP compliant physico-chemical study.

Description of key information

Cerium gadolinium oxide is an inorganic solid appearing under the form of a white to beige powder.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid
Form:
solid: particulate/powder
Colour:
white

Additional information

Cerium gadolinium oxide was described in the context of physico-chemical studies scored as Klimisch 1 and performed according to standard and internationally recognized test guidelines under GLP compliance or other relevant accreditations (DIN EN 9001 and 14001 certifications).