Reaction products of fatty acids, C18 (unsaturated) alkyl with sulfur trioxide, potassium salts

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:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study including GLP.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2015

Report date:

2015

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

Reaction products of fatty acids, C18 (unsaturated) alkyl with sulfur trioxide, potassium salts

EC Number:

701-179-4

Molecular formula:

(C18H33)nO7K2S, n= 1-2

IUPAC Name:

Reaction products of fatty acids, C18 (unsaturated) alkyl with sulfur trioxide, potassium salts

Sampling and analysis

Analytical monitoring:

yes

Test organisms

Test organisms (species):

Daphnia magna

Study design

Test type:

static

Water media type:

freshwater

Limit test:

no

Total exposure duration:

48 h

Test conditions

Reference substance (positive control):

yes

Remarks:

Potassium dichromate

Results and discussion

Effect concentrations

Duration:

48 h

Dose descriptor:

EC50

Effect conc.:

5.96 mg/L

Nominal / measured:

meas. (geom. mean)

Conc. based on:

act. ingr.

Basis for effect:

mobility

Results with reference substance (positive control):

EC50 = 1.92 mg/l

Applicant's summary and conclusion

Validity criteria fulfilled:

yes

Conclusions:

EC50 = 5.96 mg/l

Executive summary:

The acute toxicity of Octadecanoic acid, 9(or 10)-sulfo-, potassium salt (CAS-No. 67968 -63 -2) for Daphnia magna has been tested in theOECD 202 test. After 48 hour of exposure, an EC50 = 5.96 mg/l was obtained.