THALLIUM(I) CHLORIDE

THALLIUM(I) CHLORIDE Basic information
Product Name:THALLIUM(I) CHLORIDE
Synonyms:Rcra waste number U216;rcrawastenumberu216;Thalium(I) chloride;Thallium chloride (TlCl);thalliumchloride(tlcl);Thallous chloride TI 201;thallouschloride0;TlCl
CAS:7791-12-0
MF:ClTl
MW:239.84
EINECS:232-241-4
Product Categories:Inorganics;metal halide
Mol File:7791-12-0.mol
THALLIUM(I) CHLORIDE Structure
THALLIUM(I) CHLORIDE Chemical Properties
Melting point 430 °C(lit.)
Boiling point 720 °C
density 7 g/mL at 25 °C(lit.)
vapor pressure 10 mm Hg ( 517 °C)
refractive index 2.247
storage temp. Poison room
solubility ethanol: insoluble(lit.)
form beads
Specific Gravity7.004
color White to off-white
Water Solubility Slightly soluble in water. Insoluble in alcohol, and acetone.
Sensitive Air Sensitive
Merck 14,9260
Solubility Product Constant (Ksp)pKsp: 3.73
Exposure limitsACGIH: TWA 0.02 mg/m3 (Skin)
NIOSH: IDLH 15 mg/m3; TWA 0.1 mg/m3
CAS DataBase Reference7791-12-0(CAS DataBase Reference)
EPA Substance Registry SystemThallium(I) chloride (7791-12-0)
Safety Information
Hazard Codes T+,N
Risk Statements 26/28-33-51/53
Safety Statements 13-28-45-61
RIDADR UN 1707 6.1/PG 2
WGK Germany 3
RTECS XG4200000
TSCA Yes
HazardClass 6.1
PackingGroup II
HS Code 28273985
Hazardous Substances Data7791-12-0(Hazardous Substances Data)
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
THALLIUM(I) CHLORIDE Usage And Synthesis
Chemical PropertiesWhite, crystalline powder; becomes violet on exposure to light. Slightly soluble in water; insoluble in alcohol, ammonium hydroxide.
UsesCatalyst (chlorination), suntan lamp monitors.
UsesIt is used as a catalyst in chlorination's and in suntan lamps. The low solubility of TlCl is exploited in chemical synthesis: treatment of metal chloride complexes with TlPF6, gives the corresponding metal hexafluorophosphate derivative. It is used as a tracer in medical imaging.
UsesUsed to prepare cage, dinuclear complexes (TI-cyclodiphosphazanes) which possess interesting metal-metal interactions.
DefinitionChEBI: Thallium monochloride is a thallium molecular entity and an inorganic chloride.
PreparationThallium chloride may be prepared by heating the metal with chlorine.
General DescriptionWhite, crystalline powder, becomes violet on exposure to light. Used as a catalyst in chlorinations and in suntan lamps.
Reactivity ProfileFluorine and THALLIUM(I) CHLORIDE react violently, melting the product [Mellor Supp. 1:63 1956]. When heated to decomposition, THALLIUM(I) CHLORIDE emits very toxic fumes of chloride and thallium. Thallium(I) chloride is vigorously attacked by cold fluorine. A mixture of potassium and THALLIUM(I) CHLORIDE produces a weak explosion on impact [EPA, 1998].
HazardThallium chloride is highly toxic. Acute toxic effects are those of thallium poisoning.
Health Hazard(Non-Specific -- Thallium Salts) Poisonous if swallowed. Inhalation of dust is poisonous.
Fire Hazard(Non-Specific -- Thallium Salts) Fire may produce irritating or poisonous gases. When heated to decomposition, THALLIUM(I) CHLORIDE emits very toxic fumes of chloride and thallium. Thallium(I) chloride is vigorously attacked by cold fluorine. A mixture of potassium and THALLIUM(I) CHLORIDE produces a weak explosion on impact.
Safety ProfilePoison by ingestion and intraperitoneal routes. An experimental teratogen. Mutation data reported. Incompatible with F2. When heated to decomposition it emits very toxic fumes of Cland T1. See also THALLIUM COMPOUNDS and CHLORIDES.
Purification MethodsCrystallise it from 1% HCl and wash it until acid-free, or crystallise it from hot water (50mL/g), then dry it at 140o and store it in brown bottles. Also purify it by subliming it in a vacuum, followed by treatment with dry HCl gas and filtering while molten. (It is soluble in 260 parts of cold water and 70 parts of boiling water). POISONOUS.
THALLIUM(I) CHLORIDE Preparation Products And Raw materials
THALLIUM(I) BROMIDE Cesium chloride Thallium (III) chloride hydrate (8% H2O),Thallium(III) chloride hydrate (8% H2O),THALLIUM (III) CHLORIDE THALLIUM(I) CHLORIDE THALLIUM SESQUICHLORIDE THALLIUM(I) CARBONATE Tellurium tetrachloride THALLIUM (IC) CHLORIDE,THALLIUM(III) CHLORIDE TETRAHYDRATE THALLIUM THALLIUM(III) CHLORIDE HYDRATE THALLIUM (III) CHLORIDE HYDRATE THALLIUM DIETHYL CHLORIDE

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