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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

Carcinogenicity: via oral route

Endpoint conclusion
Endpoint conclusion:
no study available

Carcinogenicity: via inhalation route

Endpoint conclusion
Endpoint conclusion:
no study available

Carcinogenicity: via dermal route

Endpoint conclusion
Endpoint conclusion:
no study available

Justification for classification or non-classification

Additional information

Sodium Hydroxide: Source - the sodium hydroxide summary risk assessment report JRC EC 2008 NaOH did not induce mutagenicity in in vitro and in vivo studies. Systemic carcinogenicity is not expected to occur because NaOH is not expected to be systemically available in the body under normal handling and use conditions. Finally, no suitable studies are available to assess the risk on local carcinogenic effects.


Justification for selection of carcinogenicity via oral route endpoint:
Sodium Hydroxide: Source - the sodium hydroxide summary risk assessment report JRC EC 2008
NaOH did not induce mutagenicity in in vitro and in vivo studies. Systemic carcinogenicity is not expected to occur because NaOH is not expected to be systemically available in the body under normal handling and use conditions. Finally, no suitable studies are available to assess the risk on local carcinogenic effects.

Justification for selection of carcinogenicity via inhalation route endpoint:
Sodium Hydroxide: Source - the sodium hydroxide summary risk assessment report JRC EC 2008
NaOH did not induce mutagenicity in in vitro and in vivo studies. Systemic carcinogenicity is not expected to occur because NaOH is not expected to be systemically available in the body under normal handling and use conditions. Finally, no suitable studies are available to assess the risk on local carcinogenic effects.

Justification for selection of carcinogenicity via dermal route endpoint:
Sodium Hydroxide: Source - the sodium hydroxide summary risk assessment report JRC EC 2008
NaOH did not induce mutagenicity in in vitro and in vivo studies. Systemic carcinogenicity is not expected to occur because NaOH is not expected to be systemically available in the body under normal handling and use conditions. Finally, no suitable studies are available to assess the risk on local carcinogenic effects.