Thallium(I) carbonate
Appearance
This article needs additional citations for verification. (June 2012) |
Names | |
---|---|
Other names
thallium monocarbonate
| |
Identifiers | |
3D model (JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.026.759 |
EC Number |
|
PubChem CID
|
|
CompTox Dashboard (EPA)
|
|
| |
| |
Properties | |
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) |
5.2 g/100 mL (25 °C) 27.2 g/100 mL (100 °C) | |
Solubility | insoluble in alcohol, ether, acetone |
−101.6·10−6 cm3/mol | |
Structure | |
monoclinic | |
Hazards | |
NFPA 704 (fire diamond) | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
|
21 mg/kg (mouse, oral)[1] |
LDLo (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).
|
Thallium(I) carbonate (Tl2CO3) is a chemical compound. It can be used for the manufacture of imitation diamonds, in chemical analysis to test for carbon disulfide, and as a fungicide. Like other thallium compounds, it is considered 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.[2]
Safety
Conditions/substances to avoid are: acids, magnesium with hydride, aluminium, hydrogen sulfide, phosphorus pentoxide.
Preparation
Thallium carbonate is created by the saturation of hot aqueous thallium(I) hydroxide with carbon dioxide.
References
- ^ a b "Thallium (soluble compounds, as Tl)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
- ^ "Emergency First Aid Treatment Guide THALLOUS CARBONATE". Chemical Emergency Preparedness and Prevention. U.S. Environmental Protection Agency. Retrieved 2 June 2012.