Home Categories Inorganic chemistry P type Bismuth(III) telluride
A2213512

P type Bismuth(III) telluride , 99.99%metalsbasis , 1304-82-1

Synonym(s):
Bismuth sesquitelluride;Bismuth telluride;Dibismuth tritelluride

CAS NO.:1304-82-1

Empirical Formula: Bi2Te3

Molecular Weight: 800.76

MDL number: MFCD00014201

EINECS: 215-135-2

Pack Size Price Stock Quantity
5G RMB84.80 In Stock
25G RMB266.40 In Stock
100G RMB676.00 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 585 °C(lit.)
Boiling point: 1172 °C
Density  7.642 g/mL at 25 °C(lit.)
solubility  insoluble in H2O; soluble in ethanol
form  Powder
color  Gray
Water Solubility  Insoluble in water.
Sensitive  Moisture Sensitive
Crystal Structure Cubic, Halite Structure - Space Group Fm3m
Exposure limits ACGIH: TWA 10 mg/m3; TWA 5 mg/m3; TWA 0.1 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; TWA 10 mg/m3; TWA 0.1 mg/m3
InChIKey GUYIRKJSQUOSJV-UHFFFAOYSA-N

Description and Uses

Bismuth telluride is a gray crystalline solid.Molecular weight=800.83; Specific gravity (H2O:1)=7.7;Freezing/Melting point=573℃; Vapor pressure=0 mmHgat 20℃. Hazard Identification (based on NFPA-704 MRating System): Health 2, Flammability 2, Reactivity 2.Note: Commercial mix of doped bismuth tritelluride maycontain 80% Bi2Te3, 20% stannous telluride, plus some tellurium. Insoluble in water. Doped and undoped have similarphysical properties.

Bi2Te3, along with Sb2Te3 and other structurally analogous semiconductors, is widely regarded as one of the best materials for room-temperature thermoelectric devices. Bismuth(III) telluride is a key component of thermoelectric materials that have reached ZT values as high as 2.4 at room temperature.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332-H315-H319-H335
Precautionary statements  P261-P280-P301+P312-P302+P352+P312-P304+P340+P312-P305+P351+P338
Hazard Codes  Xn
Risk Statements  20/21/22-36/37/38
Safety Statements  26-36
RIDADR  UN 3284 6.1/PG 3
OEB B
OEL TWA: 10 mg/m3 (total)
WGK Germany  3
RTECS  EB3110000
TSCA  Yes
HazardClass  6.1

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