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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Na2Sx is corrosive.

Key value for chemical safety assessment

Skin irritation / corrosion

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (corrosive)

Additional information

According to OECD404 a skin irritation study was performed in rabbits. 3 animals were used. Corrosion was observed in all animals after a 4 hour exposure < 14 days.

In accordance with column 2 of REACH Annex VII, the eye irritation test (required in section 8.2) does not need to be conducted as the substance met the classification as corrosive to the skin.

Effects on skin irritation/corrosion: corrosive

Effect level: empty Endpoint conclusion: Adverse effect observed

Justification for classification or non-classification

Based on the available data sodium sulfide (Na2(Sx)) is classified as Skin Corr. 1B.