Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Appearance / physical state / colour

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Administrative data

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Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Statement on appearance taken from a Klimisch 1, GLP study on physico-chemical properties of this material
Qualifier:
no guideline followed
Principles of method if other than guideline:
No guideline - statement on appearance taken from K1 GLP study on the physico-chemical properties of this material
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
Black
Substance type:
inorganic
Conclusions:
Palladium monoxide (hydrate) is a fine black powder.
Executive summary:

Information on the appearance of palladium monoxide is from a Klimisch 1 GLP compliant guideline experimental study. The statement on appearance is taken from a study on physico-chemical properties of this material, and is adequate for the assessment as the key study for this endpoint. Palladium (II) oxide (hydrate) is a fine black powder.

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Statement on appearance taken from a Klimisch 1, GLP study on physico-chemical properties of this material
Qualifier:
no guideline followed
Principles of method if other than guideline:
No guideline - statement on appearance taken from K1 GLP study on the physico-chemical properties of this material
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
not specified
Colour:
Brown
Substance type:
inorganic
Conclusions:
Palladium dihydroxide is a brown solid.
Executive summary:

Information on the appearance of tetrakis(triphenylphosphine)palladium is from a Klimisch 1 GLP compliant guideline experimental study. The statement on appearance is taken from a study on physico-chemical properties of this material, and is adequate for the assessment as the key study for this endpoint. Palladium dihydroxide is a brown solid.

Description of key information

Palladium dihydroxide is a brown solid.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

Walker and White (2011) is a GLP compliant, guideline experimental study. The statement on appearance is taken from a study on physico-chemical properties of this material, and is adequate for assessment as the key study for this endpoint. Palladium dihydroxide is a brown solid.

Testing has also been conducted on a sample of ‘palladium monoxide (hydrate)’. Further assessment of the substance identity of the test item indicated that based on the analytical data this sample was the same substance as palladium dihydroxide. Studies conducted on the sample of ‘palladium monoxide (hydrate)’ are therefore included in the dossier for palladium dihydroxide. The statement on appearance and physical state is taken from a GLP compliant, guideline experimental study for palladium monoxide (hydrate). The statement on appearance is taken from a study on physico-chemical properties of the material, and is adequate for assessment as the key study for this endpoint (O'Connnor and Woolley 2011). Palladium monoxide (hydrate) is a fine black powder.