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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study according to national standards

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1987
Report date:
1987

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: The test follows the EU Directive 79/831/EEC, Annex V, part C, which is comparable to the OECD guideline 202.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Triphenylphosphine oxide
EC Number:
212-338-8
EC Name:
Triphenylphosphine oxide
Cas Number:
791-28-6
Molecular formula:
C18H15OP
IUPAC Name:
triphenylphosphine oxide
Details on test material:
- Name of test material (as cited in study report): Triphenylphosphinoxid
- Analytical purity: not specified

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
no
Details on test solutions:
PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: test solution was added without any pretreatment.

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
TEST ORGANISM
- Common name: water flea
- Strain: Sraus
- Source: Daphnia magna Straus, originally obtained from the Institute National de Recherche Chimique Appliquee, France and cultured in the laboratories of BASF since 1978.
- Age at study initiation (mean and range, SD): 2-24 hours
- Feeding during test
- Food type: Whilst changing water Brewer's yeast was given, also 1 x daily grown Green algae culture


Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
48 h

Test conditions

Hardness:
2.70 +/- 0.5 mmol/l
Test temperature:
18-20 °C
pH:
about 8.0
Dissolved oxygen:
7.1 - 8.6 mg/L
Nominal and measured concentrations:
The test medium of the highest test concentration, 125 mg/l (nominal) was prepared. Following this, serial dilutions of this test medium were prepared in order to obtain the desired test concentrations. A control was tested in parallel.
Nominal concentrations: 7.81, 15.6, 31.2, 62.5, 125 ml
Details on test conditions:
TEST SYSTEM
- Test vessel: flat bottom glass tubes
- No. of organisms per vessel: 5
- No. of vessels per concentration (replicates): 4
- No. of vessels per control (replicates): 4

TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: according to the test guideline DIN 38412, L 11
- Culture medium different from test medium:

OTHER TEST CONDITIONS
- Photoperiod: 16 : 8 hours day-night regime
- Light intensity: diffuse light (5 microeinstein/m*m*s) at 400 - 750 nm wave length

EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : mobility; Visually after 0, 3, 6, 24, 48 h
Reference substance (positive control):
no

Results and discussion

Effect concentrationsopen allclose all
Duration:
48 h
Dose descriptor:
EC0
Effect conc.:
31.2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
42.7 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
48 h
Dose descriptor:
EC100
Effect conc.:
62.5 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility

Applicant's summary and conclusion