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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Statistical models to predict the toxicity of major ions to Cerodaphnia Dubia, Daphnia Magna and Pimephales Promelas (Fathead Minnows)
Author:
Mount David R.
Year:
1997
Bibliographic source:
Enviromental Toxicology and Chemistry, Vol. 16, No. 10, pp.2009-2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EPA/600/4-90/027
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Calcium sulfate
EC Number:
231-900-3
EC Name:
Calcium sulfate
Cas Number:
7778-18-9
Molecular formula:
Ca.O4S
IUPAC Name:
Calcium sulfate

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
48 h

Test conditions

Test temperature:
25ºC
pH:
7.5-9
Dissolved oxygen:
>40% saturation

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
> 1 970 mg/L
Conc. based on:
test mat.
Basis for effect:
mortality

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
LD50 (CaSO4) (48h)> 1970 mg/l