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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Description of key information

Rhodium triiodide is a black powder.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:

Additional information

A statement on the appearance of the substance is taken from the test material section of a GLP-compliant study on the physico-chemical properties of the material (Atwal and Tremain 2011). It is considered adequate for assessment of this endpoint. Rhodium triiodide is a black powder.

This is supported by information from a reliable, peer-reviewed handbook (Lide 2008) which is considered suitable for use as a supporting study for this endpoint. At 20°C and 1013 hPa rhodium triiodide is black with hygroscopic, monoclinic crystals.