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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Dichloro(methyl)silane is accepted as being corrosive to skin (key study: BRRC, 1981) and, implicity, damaging to eyes. There are data to support this. Acute inhalation toxicity studies have shown that this substance is corrosive to the respiratory tract. 

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

Two studies were available for skin irritation/corrosion, therefore the most reliable of these was selected as the key study. Both studies showed dichloro(methyl)silane to be corrosive to the skin. A further study showed this substance to be corrosive to eyes.


Effects on skin irritation/corrosion: corrosive

Effects on eye irritation: corrosive

Effect level: empty Endpoint conclusion: Adverse effect observed

Justification for classification or non-classification

Dichloro(methyl)silane is labelled 'R35 Causes severe burns' and 'R37 Irritating to respiratory system' under Directive 67/548/EEC. Based on a weight-of evidence the proposed labelling according to Regulation 1272/2008 is 'Skin Corr. 1A', and hence 'H314: Causes severe skin burns and eye damage', and 'EUH071: Corrosive to the respiratory tract'. The serious damage to eyes is implicit for substances classified as Category 1 for skin corrosion.