7791-12-0 Usage
Description
THALLIUM(I) CHLORIDE, also known as TlCl, is a chemical compound consisting of thallium and chlorine. It is a white crystalline solid that is soluble in water and has a low melting point. THALLIUM(I) CHLORIDE is known for its unique properties, such as its low solubility and interesting metal-metal interactions, making it a versatile compound for various applications.
Uses
Used in Chemical Synthesis:
THALLIUM(I) CHLORIDE is used as a catalyst in chlorination reactions. Its low solubility is exploited in the treatment of metal chloride complexes with TlPF6, resulting in the formation of the corresponding metal hexafluorophosphate derivatives. This application is particularly useful in the synthesis of various chemical compounds.
Used in Medical Imaging:
THALLIUM(I) CHLORIDE is used as a tracer in medical imaging, where its unique properties allow for the visualization of certain structures and functions within the body. This application aids in the diagnosis and monitoring of various medical conditions.
Used in Suntuan Lamps:
THALLIUM(I) CHLORIDE is used in suntan lamps as a monitor, ensuring the proper functioning and safety of the lamps. Its presence helps maintain the desired levels of ultraviolet radiation, providing a controlled and effective tanning experience.
Used in Preparation of Cage and Dinuclear Complexes:
THALLIUM(I) CHLORIDE is used to prepare cage and dinuclear complexes, such as TI-cyclodiphosphazanes, which possess interesting metal-metal interactions. These complexes have potential applications in various fields, including materials science and catalysis.
Preparation
Thallium chloride may be prepared by heating the metal with chlorine.
Reactivity Profile
Fluorine 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].
Hazard
Thallium 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 Profile
Poison 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 Methods
Crystallise 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.
Check Digit Verification of cas no
The CAS Registry Mumber 7791-12-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,9 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7791-12:
(6*7)+(5*7)+(4*9)+(3*1)+(2*1)+(1*2)=120
120 % 10 = 0
So 7791-12-0 is a valid CAS Registry Number.
InChI:InChI=1/ClH.Tl/h1H;/q;+1/p-1
7791-12-0Relevant articles and documents
Kinetics of Thallium Dissolution in Aqueous Solutions of Hydrochloric Acid
Sarbaeva,Tuleshova, E. Zh.,Zhylysbaeva,Sarbaeva
, p. 1817 - 1821 (2019/09/06)
Abstract: Potentiometry is used to study the kinetics of electrochemical oxidation and reduction of thallium in aqueous solutions of hydrochloric acid. Kinetic parameters are calculated to characterize the mechanism of the electro-oxidation of thallium: c
First-principles band-structure calculations and X-ray photoelectron spectroscopy studies of the electronic structure of TlPb2Cl 5
Khyzhun,Bekenev,Denysyuk,Parasyuk,Fedorchuk
, p. 802 - 809 (2013/11/06)
We report on first-principles calculations of total and partial densities of states of atoms constituting TlPb2Cl5 using the full potential linearized augmented plane wave (FP-LAPW) method. The calculations reveal that the valence band of TlPb2Cl5 is dominated by contributions of the Cl 3p-like states, which contribute mainly at the top of the valence band with also significant contributions throughout the whole valence-band region. In addition, the bottom of the conduction band of TlPb 2Cl5 is composed mainly of contributions of the unoccupied Pb 6p-like states. Our FP-LAPW data indicate that the TlPb2Cl 5 compound is an indirect-gap material with band gap of 3.42 eV. The X-ray photoelectron core-level and valence-band spectra for pristine and Ar + ion-irradiated surfaces of a TlPb2Cl5 polycrystalline sample were measured. The measurements reveal high chemical stability and confirm experimentally the low hygroscopicity of TlPb 2Cl5 surface.
Insertion of allenes into the Pd-C bond of ortho-palladated primary arylamines of biological relevance: Phenethylamine, phentermine, (l)-Phenylalanine methyl ester, and (l)-tryptophan methyl ester. Synthesis of tetrahydro-3-benzazepines and their salts
Garcia-Lopez, Jose-Antonio,Saura-Llamas, Isabel,McGrady, John E.,Bautista, Delia,Vicente, Jose
, p. 8333 - 8347 (2013/02/22)
The previously reported ortho-metalated complexes [Pd(C,N-ArCH 2CRR'NH2-2)(μ-X)]2 derived from phenethylamine (Ar = C6H4, R = R' = H, X = Cl, Br), phentermine (Ar = C6H4, R = R' = Me, X = Cl), (l)-phenylalanine methyl ester (Ar = C6H4, R = H, R' = CO2Me, X = Cl, Br)), and (l)-tryptophan methyl ester (Ar = C 8H5N, R = H, R' = CO2Me, X = Cl) react with various allenes to give (1) the corresponding η3-allyl complexes derived from the insertion of one molecule of the allene into the Pd-C bond, the formation of which has been studied by DFT using a model complex, or (2) Pd(0) and the tetrahydro-3-benzazepinium salts, resulting from the decomposition of the above mentioned η3-allyl complexes, containing an exocyclic double bond, which, subsequently, react with a base to afford the corresponding benzazepines. The regiochemistry of these decomposition reactions has been studied and compared with that described for similar processes involving five-membered palladacycles. The crystal structures of the salts of some benzazepines and one isoquinoline, derived from a five-membered palladacycle, have been determined by X-ray diffraction studies.
