Thallium(I) carbonate

Thallium(I) carbonate
Names
	Other names thallium monocarbonate
Identifiers
CAS Number	6533-73-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	21553 ;
ECHA InfoCard	100.026.759
EC Number	229-434-0;
PubChem CID	23031;
RTECS number	XG4000000;
UNII	H673633FTH ;
UN number	1707
CompTox Dashboard (EPA)	DTXSID1024332 ;
	InChI InChI=1S/CH2O3.2Tl/c2-1(3)4;;/h(H2,2,3,4);;/q;2+1/p-2 Key: DASUJKKKKGHFBF-UHFFFAOYSA-L ; InChI=1/CH2O3.2Tl/c2-1(3)4;;/h(H2,2,3,4);;/q;2+1/p-2 Key: DASUJKKKKGHFBF-NUQVWONBAJ;
	SMILES [Tl+].[Tl+].[O-]C([O-])=O;
Properties
Chemical formula	Tl2CO3
Molar mass	468.776 g/mol
Appearance	white crystals
Odor	odorless
Density	7.11 g/cm3, solid
Melting point	272 °C (522 °F; 545 K)
Solubility in water	5.2 g/100 mL (25 °C) ; 27.2 g/100 mL (100 °C)
Solubility	insoluble in alcohol, ether, acetone
Magnetic susceptibility (χ)	−101.6·10−6 cm3/mol
Structure
Crystal structure	monoclinic
Hazards
	GHS labelling:[1]
Pictograms
Signal word	Danger
Hazard statements	H300, H330, H373, H411
Precautionary statements	P260, P264, P270, P271, P273, P284, P301+P310, P304+P340, P310, P314, P320, P330, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	4 0 0
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	21 mg/kg (mouse, oral)[2]
LDLo (lowest published)	23 mg/kg (rat, oral)[2]
	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) carbonate is the inorganic compound with the formula Tl₂ CO₃. It is a white, water-soluble salt. It has no or very few commercial applications. It is produced by treatment of thallous hydroxide with CO₂.[3]

Safety

Like other thallium compounds, it is extremely toxic, with an oral median lethal dose of 21 mg/kg in mice. Due to its toxicity, it is listed in the United States List of Extremely Hazardous Substances as of 2007.[4]

References

"Thallous carbonate". pubchem.ncbi.nlm.nih.gov. Retrieved 12 December 2021.
"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.
"Emergency First Aid Treatment Guide THALLOUS CARBONATE". Chemical Emergency Preparedness and Prevention. U.S. Environmental Protection Agency. Retrieved 2 June 2012.

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[1] "Thallous carbonate". pubchem.ncbi.nlm.nih.gov. Retrieved 12 December 2021.

[IDLH-2] "Thallium (soluble compounds, as Tl)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[3] 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.

[4] "Emergency First Aid Treatment Guide THALLOUS CARBONATE". Chemical Emergency Preparedness and Prevention. U.S. Environmental Protection Agency. Retrieved 2 June 2012.