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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Sulfuryl dichloride hydrolyzes slowly in moist air and reacts violently with water, forming hydrochloric acid and sulfuric acid.

2 H2O + SO2Cl2 → 2 HCl + H2SO4

Hydrogen chloride is a colourless gas which has a pungent odor, and has a vapour pressure of 42,200 hPa at 20°C and a water solubility of 823 g/L at 0°C. Its aqueous solution (called hydrochloric acid) possesses strong acidity. Hydrogen chloride is readily dissociated in water into hydrated protons and chloride ion. Sulfuric acid is a strong mineral acid that dissociates readily in water to sulfate ions and hydrated protons, and is totally miscible with water.
Cross-reference
Reason / purpose:
read-across source
Reference
Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Sulfuryl dichloride hydrolyzes slowly in moist air and reacts violently with water, forming hydrochloric acid and sulfuric acid.

2 H2O + SO2Cl2 → 2 HCl + H2SO4

Hydrogen chloride is a colourless gas which has a pungent odor, and has a vapour pressure of 42,200 hPa at 20°C and a water solubility of 823 g/L at 0°C. Its aqueous solution (called hydrochloric acid) possesses strong acidity. Hydrogen chloride is readily dissociated in water into hydrated protons and chloride ion. Sulfuric acid is a strong mineral acid that dissociates readily in water to sulfate ions and hydrated protons, and is totally miscible with water.
Reason / purpose:
read-across source
Qualifier:
according to
Guideline:
ISO 6341 (Water quality - Determination of the Inhibition of the Mobility of Daphnia magna Straus (Cladocera, Crustacea))
GLP compliance:
not specified
Test organisms (species):
Daphnia magna
Test type:
not specified
Water media type:
not specified
Total exposure duration:
24 h
Key result
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
29 mg/L
Nominal / measured:
nominal
Conc. based on:
other: measured pH
Basis for effect:
mobility
Validity criteria fulfilled:
yes
Conclusions:
This test was performed according to the international standard ISO 6341, and gave a LC50 24 hours of 29 mg/l.

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2001
Report Date:
2001

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
ISO 6341 (Water quality - Determination of the Inhibition of the Mobility of Daphnia magna Straus (Cladocera, Crustacea))
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Test material described as Sulfuric acid.
Batch number: 27.10.2008, 10:00

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
not specified
Water media type:
not specified
Total exposure duration:
24 h

Results and discussion

Effect concentrations
Key result
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
29 mg/L
Nominal / measured:
nominal
Conc. based on:
other: measured pH
Basis for effect:
mobility

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
This test was performed according to the international standard ISO 6341, and gave a LC50 24 hours of 29 mg/l.