Registration Dossier

Administrative data

Description of key information

Hexafluorosilicic acid is listed on Annex I of Directive 67/548/EEC with classification as 'Corrosive' (R34) 'Causes burns'.   No additional data are available and none are required.

Key value for chemical safety assessment

Skin irritation / corrosion

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (corrosive)

Eye irritation

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (irritating)

Additional information

Hexafluorosilicic acid is listed on Annex I of Directive 67/548/EEC with classification as 'Corrosive' (R34) 'Causes burns'. No additional data are therefore required. The results of a non-standard histological investigation in the skin of rats, guinea-pigs and pigs also indicate a corrosive effect which may be delayed and is more marked in damaged skin (Alhassan & Zink, 1982). Human experience additionally indicates that the substance is likely to be corrosive.


Effects on skin irritation/corrosion: corrosive

Effects on eye irritation: corrosive

Justification for classification or non-classification

Hexafluorosilicic acid is listed on Annex I of Directive 67/548/EEC with classification as 'Corrosive' (R34) 'Causes burns'. No change to this classification is proposed.

GHS classification with Skin Corrosive (1B) is proposed.