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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Reference
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:
Yellow
Conclusions:
Palladium (II) di(4-oxopent-2-en-2-oate) (anhydrous solid) is a yellow powder.
Executive summary:

Information on the appearance of palladium (II) di(4 -oxopent-2 -en-2 -oate) 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) di(4-oxopent-2-en-2-oate) (anhydrous solid) is a yellow powder.

Description of key information

Palladium (II) di(4-oxopent-2-en-2-oate) (anhydrous solid) is a yellow powder.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

Walker and White (2011) is a Klimisch 1, GLP-compliant study. The statement on appearance is taken from a study on physico-chemical properties of palladium (II) di(4-oxopent-2-en-2-oate), and is adequate for assessment as the key study for this endpoint. Palladium (II) di(4-oxopent-2-en-2-oate) (anhydrous solid) is a yellow powder.

The CRC Handbook (Lide 2008) is a reliable peer reviewed handbook and so can be considered reliable and suitable for use as a supporting study for this endpoint. At 20ºC and 1013.25 hPa palladium (II) 2,4-pentanedioate forms orange yellow crystals.