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Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Endpoint:
toxicity to microorganisms
Type of information:
other: raw data
Adequacy of study:
other information
Study period:
1976
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
unsuitable test system

Data source

Reference
Title:
No information
Author:
Bayer AG (1973). Information card.
Year:
1973

Materials and methods

Principles of method if other than guideline:
Method: other: Bestimmung der biologischen Schadwirkung toxischer Abwaesser gegen Bakterien. DEV, L 8 (1968) modified
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Naphthalene-1,5-disulphonic acid
EC Number:
201-317-9
EC Name:
Naphthalene-1,5-disulphonic acid
Cas Number:
81-04-9
Molecular formula:
C10H8O6S2
IUPAC Name:
naphthalene-1,5-disulfonic acid
impurity 1
Chemical structure
Reference substance name:
Water
EC Number:
231-791-2
EC Name:
Water
Cas Number:
7732-18-5
Molecular formula:
H2O
IUPAC Name:
Water
impurity 2
Chemical structure
Reference substance name:
Sulphuric acid
EC Number:
231-639-5
EC Name:
Sulphuric acid
Cas Number:
7664-93-9
Molecular formula:
H2O4S
IUPAC Name:
sulfuric acid
Test material form:
liquid

Sampling and analysis

Analytical monitoring:
no

Test organisms

Test organisms (species):
Pseudomonas fluorescens

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes

Test conditions

Details on test conditions:
Type: aquatic

Results and discussion

Effect concentrations
Duration:
24 h
Dose descriptor:
EC0
Effect conc.:
>= 10 000 mg/L

Applicant's summary and conclusion