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Description of key information

Key value for chemical safety assessment

Additional information

No reliable data is available on acute toxicity of selenous acid.

Justification for classification or non-classification

Since no reliable data is available on acute toxicity of selenous acid it is proposed to adopt the harmonised classification as laid down in Regulation (EC) No. 1272/2008 and subsequent regulations. Selenous acid (as part of the group entry "selenium compounds except cadmium sulphoselenide") is classified for Acute toxicity Cat 3: "Toxic if swallowed" (H301) and "Toxic if inhaled" (H331).