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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Captan is a white powder melting at 173 °C. The powder has a very low vapour pressure with 0.000201 Pa. The octanol/water coefficient was found to be Kow 372 (25°C) (log pow 2.57). Captan is slightly soluble in water with 3.77 mg/L but is decomposing with a half-life time of 4.9 hours (pH 7). Captan is stable in different organic solvents (acetone, acetonitril, toluene) stored at ambient temperature for three months. Particle size is determined to a L50D(v,0.5) value of 12.6 µm.

No physical hazards were identified for captan leading to classification according to EU regulation 1272/2008 (e.g. flammability, explosiveness, oxidising properties etc.).

Additional information