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THALLIUM(I) CHLORIDE

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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
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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
color 
White to off-white
Specific Gravity
7.004
Water Solubility 
Slightly soluble in water. Insoluble in alcohol, and acetone.
Sensitive 
Air Sensitive
Merck 
14,9260
Solubility Product Constant (Ksp)
pKsp: 3.73
Dielectric constant
32.700000000000003
Dielectric constant
32.700000000000003
Dielectric constant
2.2(20℃)
Exposure limits
ACGIH: TWA 0.02 mg/m3 (Skin)
NIOSH: IDLH 15 mg/m3; TWA 0.1 mg/m3
CAS DataBase Reference
7791-12-0(CAS DataBase Reference)
EPA Substance Registry System
Thallium(I) chloride (7791-12-0)
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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 Data
7791-12-0(Hazardous Substances Data)

MSDS

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THALLIUM(I) CHLORIDE Usage And Synthesis

Chemical Properties

White, crystalline powder; becomes violet on exposure to light. Slightly soluble in water; insoluble in alcohol, ammonium hydroxide.

Uses

Catalyst (chlorination), suntan lamp monitors.

Uses

It 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.

Uses

Used to prepare cage, dinuclear complexes (TI-cyclodiphosphazanes) which possess interesting metal-metal interactions.

Definition

ChEBI: Thallium monochloride is a thallium molecular entity and an inorganic chloride.

Preparation

Thallium chloride may be prepared by heating the metal with chlorine.

General Description

White, crystalline powder, becomes violet on exposure to light. Used as a catalyst in chlorinations and in suntan lamps.

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.

THALLIUM(I) CHLORIDESupplier

Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Email
market03@meryer.com
Alfa Aesar
Tel
400-6106006
Email
saleschina@alfa-asia.com
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696;
Email
info@hanhongsci.com
Thermo Fisher Scientific
Tel
800-810-5118
Email
cnchemical@thermofisher.com
Sigma-Aldrich
Tel
021-61415566 800-8193336
Email
orderCN@merckgroup.com