Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Long-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
long-term toxicity to aquatic invertebrates
Type of information:
experimental study planned
Study period:
Nov. 1 2011 to Feb 1 2012

Data source

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 211 (Daphnia magna Reproduction Test)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
425-220-8
EC Name:
-
Cas Number:
5945-33-5
Molecular formula:
C39H34O8P2
IUPAC Name:
(1-methylethylidene)di-4,1-phenylenetetraphenyl diphosphate
Details on test material:
Same with the substance notified in the section 1 of this dossier

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
yes
Details on test solutions:
Firstly, 1 g BDP is weighed by electric balance and then dissolved with dimethylformamide in 50 ml flask to get 20 g/l liquor. After that, 400,160,64 and 25.6 µL liquor is transferred into the 1 L flasks,repectively,and dissolved with M4 medium to get the 8,3.2,1.28 and 0.512mg/l test solution.
25.6,10.24 and 4.096 ml solution taking from the 8 mg/l test solution is transferred into the 1L flasks,repectively,and dissolved with M4 medium to get the 0.205,0.082 and 0.033 test solution.

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
Obey with the OECD guideline 211.

Study design

Test type:
semi-static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
21 d

Test conditions

Hardness:
The fully defined medium M4 media(see SOP EX015) is used in the laboratory.
Test temperature:
20±1°C
pH:
7.8±0.2
Dissolved oxygen:
The dissolved oxygen concentration should be above 3 mg/l. In order to meet criteria, the test vessels should be aerated for 6 hours before the culture.
Salinity:
The fully defined medium M4 media (see SOP EX015) is used in the laboratory.
Nominal and measured concentrations:
Nominal concertrations 5mg/l.
Details on test conditions:
Obey with the OECD guideline 211.
Reference substance (positive control):
yes
Remarks:
Potassium dichromate

Results and discussion

Applicant's summary and conclusion

Executive summary:

According to Directive 67/548/EECandCommission Regulation (EC) No: 790/2009, classification for BDPasR53and asaquatic chronic category 4, respectively,isnot assuredbased on the available data on aquatic environment, because of the absence of chronic toxicity evidences. If the chronic toxicity NOECs > water solubility or > 1 mg/Lthe classification of BDP as R53 oraquatic chronic category 4will be revised and abolished. Therefore, the long-term toxicity study on Daphnia needs to be proposed.