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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Waivers are appropriate for acute oral, dermal and inhalation toxicity as potassium hydrogen difluoride is a corrosive substance and additionally is already classified as Toxic if swallowed (H301) under CLP.

Key value for chemical safety assessment

Additional information

Acute oral toxicity

No data are available. A waiver is appropriate for this endpoint in accordance with Column 2 of REACH Annex VII as the substance is corrosive. It is noted that potassium hydrogen difluoride is classified for acute toxicity under CLP.

Acute inhalation toxicity

No data are available. A waiver is appropriate for this endpoint in accordance with Column 2 of REACH Annex VIII as the substance is corrosive.

Acute dermal toxicity

No data are available. A waiver is appropriate for this endpoint in accordance with Column 2 of REACH Annex VIII as the substance is corrosive.

Justification for classification or non-classification

Potassium hydrogen difluoride is classified according to the CLP Regulation (EC) 1272/2008 in Acute Toxicity Category 3 (H301). No change is proposed to the existing classification.