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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
48 hours
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Remarks:
Only 48 hour exposure
Justification for type of information:
Peer reviewed publication, described in good detail
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
Deviations:
not specified
GLP compliance:
not specified
Analytical monitoring:
not specified
Vehicle:
no
Test organisms (species):
other: Algae
Test type:
static
Water media type:
freshwater
Duration:
48 h
Dose descriptor:
EC0
Effect conc.:
1.9 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth rate

Description of key information

Several studies on the substance and related substances have been reviewed and the toxicity to algae appears to be in the range 1 - 10 mg/l for purposes of classification


Algae seem to be the least sensitive trophic level. 

Key value for chemical safety assessment

EC50 for freshwater algae:
1 mg/L

Additional information

Sodium ethyl xanthate has been used as a pesticide and is likely to have herbicidal, microbicidal and insecticidal activity.