Mercury(II) thiocyanate

Mercury(II) thiocyanate
Names
	Other names Mercuric thiocyanate; Mercuric sulfocyanate
Identifiers
CAS Number	592-85-8 ;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.008.886
EC Number	209-773-0;
PubChem CID	11615;
UNII	3JNH1DM7IF ;
CompTox Dashboard (EPA)	DTXSID7060469 ;
	InChI InChI=1S/2CHNS.Hg/c22-1-3;/h23H;/q;;+2/p-2 Key: GBZANUMDJPCQHY-UHFFFAOYSA-L;
	SMILES C(#N)[S-].C(#N)[S-].[Hg+2];
Properties
Chemical formula	Hg(SCN)2
Molar mass	316.755 g/mol
Appearance	White monoclinic powder
Odor	odorless
Density	3.71 g/cm3, solid
Melting point	165 °C (329 °F; 438 K) (decomposes)
Solubility in water	0.069 g/100 mL
Solubility	Soluble in dilute hydrochloric acid, KCN, ammonia ; slightly soluble in alcohol, ether
Magnetic susceptibility (χ)	−96.5·10−6 cm3/mol
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	highly toxic
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H300, H310, H330, H373, H410
Precautionary statements	P260, P262, P270, P271, P273, P280, P284, P301+P316, P302+P352, P304+P340, P316, P319, P320, P321, P330, P361, P364, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 1 1
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	46 mg/kg (rat, oral)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Mercury(II) thiocyanate (Hg(SCN)₂) is an inorganic chemical compound, the coordination complex of Hg²⁺ and the thiocyanate anion. It is a white powder. It will produce a large, winding "snake" when ignited, an effect known as the Pharaoh's serpent.

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