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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Phototransformation in water

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phototransformation in water
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other justification
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Description of key information

Expert Judgement 

If released into water, Talc (Mg3H2(SiO3)4) is not expected to adsorb to suspended solids and sediment based upon the estimated Koc value of 31.82 L/kg .

Volatilization from water surfaces is not expected to be an important fate process based upon this compound's estimated Henry's Law constant is 5.54E-029 atm-m3/mole (5.613E-024 Pa-m3/mole).

On this basis phototransformation in water is not expected . 

Therefore testing for Phototransformation in water does not need to be performed. 

Key value for chemical safety assessment

Additional information