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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

Photolysis in air was estimated by QSAR calculation using EPIWIN. The rate constant was determined to be 61.2669 -90.6536 X 10 E12 cm3/moleculesec, the photodegradation halflife is estimated as 1.416 -2.095 hr (Range given for different isomeric forms of MTHPA).

Key value for chemical safety assessment

Additional information