Thallium(I) carbonate

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Thallium(I) carbonate
Identifiers
CAS number 6533-73-9 YesY
PubChem 23031
ChemSpider 21553 YesY
EC number 229-434-0
Jmol-3D images Image 1
Properties
Molecular 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
Structure
Crystal structure monoclinic
Hazards
EU classification not listed
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

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.[1]

Safety[edit]

Conditions/substances to avoid are: acids, magnesium with hydride, aluminium, hydrosulfuric acid, phosphorus pentoxide.

Preparation[edit]

Thallium carbonate is created by the saturation of hot aqueous thallium(I) hydroxide with carbon dioxide.

References[edit]

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