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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 soil microorganisms

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Administrative data

Endpoint:
toxicity to soil microorganisms
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: ducumentation insufficient for assessment

Data source

Reference
Reference Type:
publication
Title:
The Effect of Both Powdered and Liquid Rubber Additives on the Growth of Soil Microorganisms
Author:
Williams GR
Year:
1984
Bibliographic source:
International Biodetoriation Vol. 20 No. 3

Materials and methods

Principles of method if other than guideline:
The substance was incorporated into nutrient agar, at varying concentrations, approximating the levels of incorporation in rubber formulations, and inoculated with soil extract (3.0 E+07 organisms per ml).

Test material

Constituent 1
Chemical structure
Reference substance name:
1,2-Dihydro-2,2,4-trimethylquinoline, oligomers
EC Number:
500-051-3
EC Name:
1,2-Dihydro-2,2,4-trimethylquinoline, oligomers
Cas Number:
26780-96-1
Molecular formula:
(C12H15N)x
IUPAC Name:
2,2,4-trimethyl-1,2-dihydroquinoline
Details on test material:
polymerised 2,2,4-trimethyl-dihydroquinolins

Test organisms

Test organisms (inoculum):
soil

Study design

Total exposure duration:
14 d

Test conditions

Test temperature:
25°C

Results and discussion

Effect concentrations
Duration:
14 d
Dose descriptor:
other: LD50
Effect conc.:
> 1.5 other: %
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: growth inhibition

Any other information on results incl. tables

The substance was classified as non-toxic.

Applicant's summary and conclusion