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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The published literature fulfilled basically scientific principles without GLP compliance statement.

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1995

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: Protocol to determine the acute lethality of liquid effluents to fish
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
GLP compliance:
no

Test material

Constituent 1
Reference substance name:
Sodium iodide
EC Number:
231-679-3
EC Name:
Sodium iodide
Cas Number:
7681-82-5
IUPAC Name:
sodium iodide
Constituent 2
Reference substance name:
iodide in NaI
IUPAC Name:
iodide in NaI
Details on test material:
The iodine test solutions were prepared from sodium iodide (NaI, 99%, Aldrich, Milwaukee, WI).

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Oncorhynchus mykiss (previous name: Salmo gairdneri)

Study design

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

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
3 780 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Remarks on result:
other: 2730-5230

Any other information on results incl. tables

Sublethal observations / clinical signs:

No data

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Remarks:
Guideline test published
Conclusions:
The acute toxicity (96-h LC50) of aqueous stable iodine species iodide were measured to Rainbow Trout: LC50 ≥ 860 mg/L.
Executive summary:

The 96 hours acute toxicity test to Rainbow Trout was conducted according to Protocol to determine the acute lethality of liquid effluents to fish, which was established by Ontario Ministry of the Environment. The results show that the 96 hour LC50 is over 860 mg/l.