Registration Dossier
Registration Dossier
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EC number: 281-192-5 | CAS number: 83897-84-1
Endpoint summary
Administrative data
Description of key information
Calcium magnesium carbonate oxide is not acutely toxic.
Key value for chemical safety assessment
Acute toxicity: via oral route
Endpoint conclusion
- Dose descriptor:
- LD50
- Value:
- 2 000 mg/kg bw
Additional information
In an acute oral toxicity test in rats with CaMgO2 and CaMg(OH)4, no deaths occurred at the limit doses of 2000 mg/kg bw. Therefore, the LD50 is >2000 mg/kg bw. This figure is also applicable to CaCO3MgO by read-across.
An acute dermal toxicity study with CaCO3MgO is considered to be scientifically unjustified.
An acute inhalation toxicity study with CaCO3MgO is considered to be scientifically unjustified.
Justification for classification or non-classification
The available information indicates that CaCO3MgO is not acutely toxic or harmful. Therefore, classification of CaCO3MgO for acute toxicity is not warranted.
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