Thallium(I) carbonate

Thallium(I) carbonate
Names

Other names thallium monocarbonate
Identifiers
CAS Number	6533-73-9^Y
3D model (JSmol)	Interactive image
ChemSpider	21553^Y
ECHA InfoCard	100.026.759
EC Number	229-434-0
PubChem CID	23031
RTECS number	XG4000000
UNII	H673633FTH^Y
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^Y Key: DASUJKKKKGHFBF-UHFFFAOYSA-L^Y 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:^[2]
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)^[1]
LD_Lo (lowest published)	23 mg/kg (rat, oral)^[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references

Chemical compound

Thallium(I) carbonate is the inorganic compound with the formula Tl₂CO₃. 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

^ ^a ^b "Thallium (soluble compounds, as Tl)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
^ "Thallous carbonate". pubchem.ncbi.nlm.nih.gov. Retrieved 12 December 2021.
^ 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.
^ "Emergency First Aid Treatment Guide THALLOUS CARBONATE". Chemical Emergency Preparedness and Prevention. U.S. Environmental Protection Agency. Retrieved 2 June 2012.