Mercury(II) sulfate

Mercury(II) sulfate
Names
	Other names Mercuric sulfate, Mercurypersulfate, Mercury Bisulfate
Identifiers
CAS Number	7783-35-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	22950;
ECHA InfoCard	100.029.083
EC Number	231-992-5;
PubChem CID	24544;
RTECS number	OX0500000;
UNII	J4L3PPG58I ;
UN number	1645
CompTox Dashboard (EPA)	DTXSID7064819 ;
	InChI InChI=1S/Hg.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 Key: DOBUSJIVSSJEDA-UHFFFAOYSA-L;
	SMILES [O-]S(=O)(=O)[O-].[Hg+2];
Properties
Chemical formula	HgSO4
Molar mass	296.653 g/mol
Appearance	white monoclinic crystals
Odor	odorless
Density	6.47 g/cm3, solid
Sublimation; conditions	450 °C (dec.)
Solubility in water	Decomposes in water to yellow mercuric subsulfate and sulfuric acid
Solubility	soluble in hot H2SO4, NaCl solution ; insoluble in ethanol, acetone, ammonia
Magnetic susceptibility (χ)	−78.1·10−6 cm3/mol
Structure
Crystal structure	rhombic
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	−707.5 kJ mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H300, H310, H330, H373, H410
Precautionary statements	P260, P262, P264, 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 0 1
	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) sulfate, commonly called mercuric sulfate, is the chemical compound Hg S O₄. It is an odorless salt that forms white granules or crystalline powder. In water, it separates into an insoluble basic sulfate with a yellow color and sulfuric acid.