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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Qualifier:
according to guideline
Guideline:
other: Din-Entwurf 38412 Teil 12
GLP compliance:
no
Analytical monitoring:
no
Test organisms (species):
other: bacteria mixed culture
Total exposure duration:
24 h
Duration:
24 h
Dose descriptor:
EC10
Effect conc.:
38 mg/L
Conc. based on:
test mat.
Basis for effect:
other: Inhibition of bacterial metabolism
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
96.9 mg/L
Conc. based on:
test mat.
Basis for effect:
other: Inhibition of bacterial metabolism
Duration:
24 h
Dose descriptor:
other: EC90
Effect conc.:
246.9 mg/L
Conc. based on:
test mat.
Basis for effect:
other: Inhibition of bacterial metabolism
Reported statistics and error estimates:
Probit analysis

Description of key information

Key value for chemical safety assessment

Additional information

In water, sodium methanolate rapidly hydrolyses to methanol and sodium hydroxide (OECD, 2002). Due to the rapid hydrolysis of sodium methanolate, the assessment of the aquatic toxicity is based on the products of hydrolysis i.e. methanol and sodium hydroxide.

One toxicity study is available for sodium methanolate which was performed according to DIN 38412, part 12 (Study director, 1989). A bacterial mixed culture was exposed to the test item for 24 h and the inhibition of bacterial metabolism was studied. The documentation of the study details is limited. Thus, the study is not suitable for an assessment. However, the EC10 (24 h) of 38 mg/L and the EC50 (24 h) of 96.9 mg/L are reported for completeness. Since the study is not suitable, the assessment is based on the degradation products of sodium methanolate only.