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Following the @Nilay Ghosh recommendation, I found an SDS sheet for $\ce{Cu2[HgI4]}$ and there is SDS for $\ce{HgI2}$. For $\ce{Cu2[HgI4]}$: Acute toxicity estimate Oral (Expert judgment): 5,1 mg/kg Acute toxicity estimate Inhalation (Expert judgment) 4 h: 0,051 mg/l Acute toxicity estimate Dermal (Expert judgment): 5,1 mg/kg For $\ce{HgI2}$: LD50 oral ...


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Yes, it is possible to fully decompose cinnabar to elemental mercury and sulfur. What conditions need to be satisfied in the new method? Before reaching to decomposition temperature, cinnabar phase transitions to a different polymorph. Data from this paper1 indicate that α-HgS (trigonal) → β-HgS (cubic) phase transition occurs at 673 K and is completed at ...


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