Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Although reliable peer-reviewed publication, raw data has not been found.
No clear details of methods or observations
Qualifier:
equivalent or similar to guideline
Guideline:
EPA OTS 797.1400 (Fish Acute Toxicity Test)
GLP compliance:
not specified
Test organisms (species):
Pimephales promelas
Test type:
static
Water media type:
freshwater
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
> 0.32 - < 3.2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
> 0.18 - < 1.8 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Conclusions:
The LC50 value between 0.18 and 1.8 or 0.32 and 3.2 ppm in separate studies on different commercial products (Product A and B) of sodiumethyl xanthate.

Description of key information

There is a lot of published fish toxicity data, but with limited detail.  However, there is a sufficient weight of evidence on common laboratory fish that toxicity is in the classification range 1 - 10 mg/l and the data can be used for classification.  


It is also noted that Daphnia appear to be a more susceptable indicator species and further vertebrate work is not acceptable. 


Data on other salts and related xanthates suggest the toxicity to potassium and sodium salts are comparable as expected.  


Under conditions of testing, it is considered likely that the xanthates will rapidly hydrolyse. 

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Dose descriptor:
LC50
Effect concentration:
> 0.1 - < 1 mg/L

Additional information