Registration Dossier
Registration Dossier
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EC number: 232-191-3 | CAS number: 7789-80-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The 48 hour LC50 value of calcium iodate in invertebrate (Daphnia magna) was estimated to be 236.1352 mg/L. This value indicates that the chemical will not exhibit short term toxicity to invertebrates. As per the CLP criteria,the substance will not be classifed for Aquatic toxicity.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 236.135 mg/L
Additional information
Based on the various studies available with Klimish rating 2 for the read across substances for CAS NO 7789-80-2 and based on the category approach of organic functional group along with similar mechanistic approach and having structural similarities defined by QSAR toolbox. The results is summarized as follows
Sr.No |
Endpoint |
Effect values |
Basis for effects |
Duration |
Species |
Remarks |
1 |
LC50 |
236.1352 mg/l |
mortality |
48 hrs |
Daphnia magna |
Predicted data for target chemical |
2 |
LC50 |
226 mg/L.
|
mortality |
24 hrs |
Dreissena polymorpha |
Data from publication for CAS no 7681-11-0 |
By applying weight of evidence approach to the studies summarized in the above table it can be observed that LC50 value is expected to be in range of 226 to 236.1352 mg/l in a 24 to 48 hrs study on the basis of mortality effect . Thus according to CLP criteria of aquatic classification it is concluded that the substance calcium iodate is not toxic to aquatic invertebrate (Daphnia magna and Dreissena polymorpha)
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