| Identification | More | [Name]
THALLIUM(I) BROMIDE | [CAS]
7789-40-4 | [Synonyms]
Thalliam bromide
THALLIUM(+1)BROMIDE
THALLIUM BROMIDE
THALLIUM(I) BROMIDE
THALLIUM (OUS) BROMIDE
THALLOUS BROMIDE
KRS 5
Thallium bromide (Tl2Br2)
Thallium bromide (TlBr)
Thallium bromide (TlBr), dimer
Thallium bromide iodide (TlBrI)
thalliumbromide(tlbr)
TlBr
Thallium(I) bromide (99.999%-Tl) PURATREM
ThalliumbromidePURATREMyellowpowder
Thallium(Ⅰ)bromide
Thallium(I) bromide, anhydrous, beads, #10 mesh, 99.999% metals basis
Thallium(I) bromide, 99.995%
Thallium(I) bromide, 99+%
Thallium(I)bromide,99.999%(metalsbasis) | [EINECS(EC#)]
232-163-0 | [Molecular Formula]
BrTl | [MDL Number]
MFCD00011273 | [Molecular Weight]
284.29 | [MOL File]
7789-40-4.mol |
| Chemical Properties | Back Directory | [Description]
Thallium bromide is a yellow-white solid and hygroscopic. It is similar to silver bromide.
It gets darker when light shines on it. It is very toxic, like all thallium compounds. It does
not dissolve in water. Thallium bromide is used in gamma ray and x-ray detectors and
also in semiconductors. Prolonged period of exposure to thallium compounds has been
reported to cause adverse health effects such as joint pain, severe pain in legs, loss of appetite,
fatigue, and albuminuria. | [Appearance]
YELLOW POWDER | [Melting point ]
>300 °C(lit.) | [Boiling point ]
815 °C | [density ]
7.5 g/mL at 25 °C(lit.)
| [form ]
beads
| [color ]
yellow | [Specific Gravity]
7.557 | [Water Solubility ]
Practically insoluble in water | [Sensitive ]
Hygroscopic | [Merck ]
14,9258 | [Solubility Product Constant (Ksp)]
pKsp: 5.43 | [Exposure limits]
ACGIH: TWA 0.02 mg/m3 (Skin) | [Uses]
Mixed crystals with thallium iodide for infrared
radiation transmitters used in military detection
devices. | [CAS DataBase Reference]
7789-40-4(CAS DataBase Reference) | [EPA Substance Registry System]
Thallium bromide (TlBr) (7789-40-4) |
| Safety Data | Back Directory | [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 ]
XG3850000
| [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
II | [HS Code ]
28275900 | [Safety Profile]
Poison by ingestion and subcutaneous routes. Reacts violently with Na, K. When heated to decomposition it emits very toxic fumes of Brand T1. See also BROMIDES and THALLIUM COMPOUNDS. |
| Questions And Answer | Back Directory | [Crystal System]
The space lattice of TlBr belongs to the cubic system, and its cesium chloride-type structure has a lattice constant of a=0.397 nm. |
| Hazard Information | Back Directory | [Chemical Properties]
THALLIUM(I) BROMIDE is yellow crystalline powder
| [Production Methods]
Single crystals are synthesized by the Stockbarger method after putting high grade sources into a well dried alumina crucible. The crystal is easy to process according to its nonfragile character. | [Purification Methods]
Thallous bromide (20g) is purified by refluxing for 2-3hours with water (200mL) containing 3mL of 47% HBr. It is then washed until acid-free, heated to 300o for 2-3hours and stored in brown bottles. It solubility in H2O (w/w) is 0.034% at 0o, 0.048% at 20o, and 0.204% at 100o. [D.nges in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 870 1963]. POISONOUS. |
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