7791-12-0

Name THALLIUM(I) CHLORIDE
CAS 7791-12-0
EINECS(EC#) 232-241-4
Molecular Formula ClTl
MDL Number MFCD00011274
Molecular Weight 239.84
MOL File 7791-12-0.mol
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Chemical Properties

Appearance White, crystalline powder; becomes violet on exposure to light. Slightly soluble in water; insoluble in alcohol, ammonium hydroxide.
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.
Specific Heat Capacity Cp(crystal):0.212225J/(g·K),at 25℃
Crystal Structure CsCl type
Sensitive  Air Sensitive
crystal system Cube
Merck  14,9260
Solubility Product Constant (Ksp) pKsp: 3.73
Space group Pm3m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.38420.38420.38429090900.0567
Dielectric constant 2.2（20℃）
Exposure limits ACGIH: TWA 0.02 mg/m3 (Skin)
NIOSH: IDLH 15 mg/m3; TWA 0.1 mg/m3
InChI 1S/ClH.Tl/h1H;/q;+1/p-1
InChIKey GBECUEIQVRDUKB-UHFFFAOYSA-M
SMILES Cl[Tl]
Uses
Catalyst (chlorination), suntan lamp monitors.
CAS DataBase Reference 7791-12-0(CAS DataBase Reference)
EPA Substance Registry System Thallium(I) chloride (7791-12-0)
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Safety Data

Hazard Codes  T+,N
Risk Statements 
R26/28:Very Toxic by inhalation and if swallowed .
R33:Danger of cumulative effects.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Statements 
S13:Keep away from food, drink and animal feeding stuffs .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
RIDADR  UN 1707 6.1/PG 2
WGK Germany  3
RTECS  XG4200000
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  28273985
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 2 Inhalation
Acute Tox. 2 Oral
Aquatic Chronic 2
STOT RE 2
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.
Hazardous Substances Data 7791-12-0(Hazardous Substances Data)

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