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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Uronium hydrogen sulphate is not considered to be harmful by oral or dermal route:
- Oral LD50 > 2000 mg/kg bw (rat)
- Dermal LD50 > 2000 mg/kg bw (rat, no mortality observed)
No data by inhalation is available. However there is a low potential for inhalation exposure. In addition, the substance has been demonstrated to be of low toxicity by dermal and oral routes of exposure. Dermal route is more appropriate as skin contact in production and/or use is likely. Testing for acute inhalation toxicity is therefore not justified on scientific grounds or based on exposure considerations.

Key value for chemical safety assessment

Additional information

Justification for classification or non-classification

Data are conclusive for oral and dermal route, but not sufficient for classification according to CLP criteria (Regulation (EC) No 1272/2008). No data is available by inhalation.

No classification is proposed for acute toxicity according to CLP.