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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acute toxicity: inhalation
Remarks:
Tessenderlo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1991
Report date:
1991

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EPA Pesticide Assessment Guidelines, Subdivision F, Hazard Evaluation, Human and Domestic Animals, November 1984
GLP compliance:
yes (incl. QA statement)
Test type:
traditional method

Test material

Constituent 1
Chemical structure
Reference substance name:
Calcium sulfide (Ca(Sx))
EC Number:
215-709-2
EC Name:
Calcium sulfide (Ca(Sx))
Cas Number:
1344-81-6
Molecular formula:
CaSx (X=2,3,4,5,6,7)
IUPAC Name:
Calcium sulfide (Ca(Sx)
Test material form:
liquid

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
Hilltop Lab Animals, Scottdale, PA (15 males and 15 females)

Administration / exposure

Route of administration:
inhalation: aerosol
Type of inhalation exposure:
not specified
Vehicle:
clean air
Mass median aerodynamic diameter (MMAD):
>= 1.8 - <= 2.35 µm
Details on inhalation exposure:
See it in the attachement page 17-18
Duration of exposure:
ca. 4.5 h
Concentrations:
2.41 mg/l , 3.78 mg/l and 5.08 mg/l
No. of animals per sex per dose:
5 female and 5 male rats
Control animals:
no
Statistics:
Probit Analysis

Results and discussion

Effect levels
Key result
Sex:
male/female
Dose descriptor:
LC50
Effect level:
>= 3.6 mg/L air (nominal)
Based on:
test mat.
95% CL:
>= 2.93 - <= 4.42
Exp. duration:
4.5 h
Mortality:
At 2.41 mg/l the mortality is 30%
At 3.78 mg/l the mortality is 40%
At 5.08 mg/l the mortality is 80%
See it in the attachement on Page 30 Table 11
Clinical signs:
other: At 2.41 mg/l at 12 page Exposure level 2nd paragraph At 3.78 mg/l at 13. page Exposure level 2nd paragraph At 5.08 mg/l at 13. page Exposure level 2nd paragraph
Body weight:
Measured but not evaluated.
Gross pathology:
At 2.41 mg/l the 12 page Exposure level 3rd paragraph
At 3.78 mg/l the 13 page Exposure level 3rd paragraph
At 5.08 mg/l the 14 page Exposure level 3rd paragraph

Applicant's summary and conclusion

Interpretation of results:
Category 4 based on GHS criteria
Remarks:
H332
Conclusions:
LC50: 3.6 mg/l See it in the attachement on page 14 in the conclusion.
Executive summary:

It is classified as acute tox inhalation category 4 (H332).