Thallium(I) sulfate

Thallium(I) sulfate
Names
	Other names Thallous sulfate, Thallium sulfate
Identifiers
CAS Number	7446-18-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:81836;
ChemSpider	23218 ;
ECHA InfoCard	100.028.365
KEGG	C18567 ;
PubChem CID	24833;
RTECS number	XG6800000;
UNII	U9F9QIR12T ;
UN number	1707
CompTox Dashboard (EPA)	DTXSID1024336 ;
	InChI InChI=1S/H2O4S.2Tl/c1-5(2,3)4;;/h(H2,1,2,3,4);;/q;2+1/p-2 Key: YTQVHRVITVLIRD-UHFFFAOYSA-L ; InChI=1/H2O4S.2Tl/c1-5(2,3)4;;/h(H2,1,2,3,4);;/q;2+1/p-2 Key: YTQVHRVITVLIRD-NUQVWONBAB;
	SMILES [Tl+].[Tl+].[O-]S([O-])(=O)=O;
Properties
Chemical formula	Tl2SO4
Molar mass	504.83 g/mol
Appearance	white prisms or dense white powder
Odor	odorless
Density	6.77 g/cm3
Melting point	632 °C (1,170 °F; 905 K)
Solubility in water	2.70 g/100 mL (0 °C) ; 4.87 g/100 mL (20 °C) ; 18.45 g/100 mL (100 °C)
Magnetic susceptibility (χ)	−112.6·10−6 cm3/mol
Refractive index (nD)	1.860
Structure
Crystal structure	rhomboid
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H300, H315, H372, H411
Precautionary statements	P260, P264, P270, P273, P280, P301+P310, P302+P352, P314, P321, P330, P332+P313, P362, P391, P405, P501
NFPA 704 (fire diamond)	4 0 0
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	16 mg/kg (rat, oral); 23.5 mg/kg (mouse, 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

Thallium(I) sulfate (Tl₂SO₄) or thallous sulfate is the sulfate salt of thallium in the common +1 oxidation state, as indicated by the Roman numeral I. It is often referred to as simply thallium sulfate.^[2]

^ "Thallium (soluble compounds, as Tl)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
^ Micke, Heinrich; Wolf, Hans Uwe (2000). "Thallium and Thallium Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a26_607. ISBN 978-3527306732.

[1] "Thallium (soluble compounds, as Tl)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[2] Micke, Heinrich; Wolf, Hans Uwe (2000). "Thallium and Thallium Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a26_607. ISBN 978-3527306732.

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