Registration Dossier

Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
long-term toxicity to aquatic invertebrates
Data waiving:
study technically not feasible
Justification for data waiving:
other:
Justification for type of information:
In water (including soil or sediment pore water), NaOH is present as the sodium ion (Na+) and hydroxyl ion (OH-), as solid NaOH rapidly dissolves and subsequently dissociates in water (EU RAR, 2007; section 3.1.3, page 24). Therefore, the only posssible effect would result from the pH effect. However, pH will remain between environmentally expected ranges.

Data source

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium hydroxide
EC Number:
215-185-5
EC Name:
Sodium hydroxide
Cas Number:
1310-73-2
Molecular formula:
HNaO
IUPAC Name:
sodium hydroxide

Results and discussion

Applicant's summary and conclusion