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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Description of key information

F-DIOX Formate is classified as Corrosive Category 1A since it reacts on contact with humidity in the air or with water to release of hydrofluoric acid, which is a highly corrosive acid classified as Corrosive Category 1A.

Key value for chemical safety assessment

Additional information

Justification for classification or non-classification

The substance reacts on contact with humidity in the air or with water to release of hydrofluoric acid. Hydrofluoric acid is a highly corrosive acid classified as Corrosive Category 1A. Consequently F-DIOX Formate is classified as follows:


Corrosive Category 1A. - H 314, Causes severe skin burns and eye damage.


Eye Damage Category 1 - H318, Causes serious eye damage.