TELLURIUM TETRABROMIDE
- Product Name
- TELLURIUM TETRABROMIDE
- CAS No.
- 10031-27-3
- Chemical Name
- TELLURIUM TETRABROMIDE
- Synonyms
- Einecs 233-090-7;TELLURIUM BROMIDE;Tellurium(Ⅳ) bromide;TELLURIUM TETRABROMIDE;TELLURIUM (IV) BROMIDE;Tellurium bromide(TeBr4);Tellurium(IV) tetrabromide;Tellurium Bromide, 99.999%;TelluriuM BroMide, -4 Mesh;TELLURIUM TETRABROMIDE 99%
- CBNumber
- CB1495676
- Molecular Formula
- Br4Te
- Formula Weight
- 447.22
- MOL File
- 10031-27-3.mol
TELLURIUM TETRABROMIDE Property
- Melting point:
- ~380 °C(lit.)
- Boiling point:
- 420 °C(lit.)
- Density
- 4.3 g/mL at 25 °C(lit.)
- Flash point:
- 420°C
- solubility
- reacts with H2O; soluble in ethyl ether
- form
- beads
- color
- yellow-orange monoclinic crystals, crystalline
- Water Solubility
- It reacts with water and ethanol.
- Sensitive
- Moisture Sensitive
- Merck
- 14,9125
- Exposure limits
- ACGIH: TWA 0.1 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3 - CAS DataBase Reference
- 10031-27-3(CAS DataBase Reference)
- EPA Substance Registry System
- Tellurium bromide (TeBr4), (T-4)- (10031-27-3)
Safety
- Hazard Codes
- C
- Risk Statements
- 34
- Safety Statements
- 22-26-27-36/37/39-45
- RIDADR
- UN 3260 8/PG 2
- WGK Germany
- 3
- TSCA
- Yes
- HazardClass
- 8
- PackingGroup
- II
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H300Fatal if swallowed
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P310Immediately call a POISON CENTER or doctor/physician.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- 043439
- Product name
- Tellurium(IV) bromide, ultra dry
- Purity
- 99.999% (metals basis)
- Packaging
- 10g
- Price
- $152
- Updated
- 2024/03/01
- Product number
- 043439
- Product name
- Tellurium(IV) bromide, ultra dry
- Purity
- 99.999% (metals basis)
- Packaging
- 50g
- Price
- $540.65
- Updated
- 2024/03/01
- Product number
- 52-7000
- Product name
- Tellurium(IV) bromide (99.9%-Te)
- Packaging
- 10g
- Price
- $137
- Updated
- 2024/03/01
- Product number
- 52-7000
- Product name
- Tellurium(IV) bromide (99.9%-Te)
- Packaging
- 50g
- Price
- $513
- Updated
- 2024/03/01
- Product number
- 075101
- Product name
- Tellurium(IV) bromide
- Purity
- 99.9% (metals basis)
- Packaging
- 10g
- Price
- $119
- Updated
- 2024/03/01
TELLURIUM TETRABROMIDE Chemical Properties,Usage,Production
Description
Tellurium tetrabromide is a iron-gray crystalline substance; stable even in moist air. Decomposes on heating, giving off I2. Hydrolyzed slowly in cold water, rapidly in warm water, forming TeO2 and HI.
Chemical Properties
Yellow crystals. Soluble in a little water (decomposes in excess water).
Uses
Tellurium tetrabromide?it acts as a chemical and organic intermediate. It is also acts a conductor.
Preparation
Pure Te (5 g.) is introduced through adapter a into the elongated reaction flask A of the apparatus shown in Fig.1. Adapter a is connected to a N2 purification train which furnishes either pure dry N2 or N2 containing bromine vapor. For the latter, the gas stream may be passed through a wash bottle containing dry Br2 , followed by a U tube containing P2O5-glass wool. First, the apparatus in purged with pure N2. Then A is cooled with ice water and the N2 -Br2 mixture is introduced. A portion of the Br2 condenses on the Te and reacts quietly with it, while the remainder is retained in the empty U tube D, cooled with an ice-salt mixture. The difference between the weight loss of the Br2 wash bottle and the weight of the condensate in D indicates the amount of bromine remaining in A. When this becomes about twice the amount needed for quantitative conversion to TeBr4, the gas stream is interrupted, stopcock C is closed, and the product slurry is allowed to stand at room temperature for several hours (better overnight) in order to complete the reaction. Then C is reopened and the excess bromine is purged by a stream of N2 while A is simultaneously heated to 50℃. To purify the product, it is sublimed in vacuum. Gas inlet tube a is sealed off at d, the whole apparatus is tilted to a horizontal position, and ground glass joint E is connected to an aspirator through a P2O5 drying tube. During evacuation, A is heated to sublimation temperature (about 350℃) with an electric furnace. Any black condensate which may separate in B at 200℃ is vaporized by heating with a burner. The subsequently deposited yellow to orange-red powder is quite pure TeBr4; if necessary, this can be further purified by an analogous sublimation in high vacuum.
TELLURIUM TETRABROMIDE Preparation Products And Raw materials
Raw materials
Preparation Products
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