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Chemical Identification
Common Name
Mercuric chloride
中文通用名
氯化汞
IUPAC
mercury(II) chloride; mercury dichloride
CAS
mercury chloride (HgCl2)
CAS No.
7487-94-7
Molecular Formula
Cl2Hg
Molecular Structure
Physical Properties
Molecular weight:271.5; Physical form:Colourless, crystalline powder. Density:5.32; Melting point:277 °C; Vapour pressure:18.6 mPa (35 °C); Solubility:In water 69 g/l (20 °C). Soluble in ethanol, diethyl ether, and pyridine.; Stability:Readily reduced chemically or by sunlight to mercury(I) chloride and to metallic mercury. Mercury chloride oxide is precipitated by alkalis.;
Toxicology
Oral:Acute oral LD50 for rats 1-5 mg/ kg. ADI:0.05 mg/kg.
Transport Information
Hazard Class:Ia(Extremely hazardous)

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