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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method C.3 (Algal Inhibition test)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
Reaction mass of biphenyl-2-yl diphenyl phosphate and triphenyl phosphate and bis(biphenyl-2-yl) phenyl phosphate
EC Number:
700-393-5
IUPAC Name:
Reaction mass of biphenyl-2-yl diphenyl phosphate and triphenyl phosphate and bis(biphenyl-2-yl) phenyl phosphate
Details on test material:
- Lot/batch No.: F11101
- Expiration date of the lot/batch: Feb 2011
- Stability under test conditions: yes
- Storage condition of test material: Room Temperature: (20 ± 5°C); keep away from light and humidity.

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
72 h

Test conditions

Reference substance (positive control):
yes
Remarks:
potassium dichromate

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: growth rate, cell number and biomass
Remarks on result:
other: no algal cell growth inhibition up to its limit of solubility in water
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
3.8 mg/L
Nominal / measured:
meas. (arithm. mean)
Conc. based on:
test mat.
Basis for effect:
other: growth rate, cell number and biomass
Remarks on result:
other: no algal cell growth inhibition up to its limit of solubility in water
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
other: growth rate, cell number and biomass
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
> 3.8 mg/L
Nominal / measured:
meas. (arithm. mean)
Conc. based on:
test mat.
Basis for effect:
other: growth rate, cell number and biomass

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The following results for the test item'Reaction mass of biphenyl-2-yl diphenyl phosphate and triphenyl phosphate and bis(biphenyl-2-yl) phenyl phosphate and tris 2-biphenylyl phosphate' were determined:

Endpoint NOEC LOEC EC50
Growth Rate 3.8 mg/L > 3.8 mg/L > 3.8 mg/L
AUC 3.8 mg/L > 3.8 mg/L > 3.8 mg/L
Yield 3.8 mg/L > 3.8 mg/L > 3.8 mg/L

[3.8 mg/L = mean of measured concentration (corresponding 100 mg/L nominal concentration)]

The test substance showed no algal cell growth inhibition up to its limit of solubility in water.