1304-82-1 Usage
Description
Bismuth telluride (Bi2Te3) is a gray or black crystalline solid or gray powder, which is an alloy of two metallic elements, bismuth and tellurium. It has a hexagonal platelet structure with a metallic luster and a melting point of 586°C and a density of 7.8 g cm-3. Bismuth telluride is known for its excellent thermoelectric properties, making it a highly sought-after material in various applications.
Uses
Used in Thermoelectric Devices:
Bismuth telluride is used as a key component in room-temperature thermoelectric devices due to its high ZT values, which can reach up to 2.4 at room temperature. This property makes it one of the best materials for converting temperature differences into electrical energy, thus finding applications in power generation and cooling systems.
Used in Electronics Industry:
Bismuth telluride is utilized as a semiconductor in the electronics industry. Its unique properties allow it to be used in various electronic devices, contributing to the development and advancement of modern electronics.
Used in Semiconductor Industry:
In the semiconductor industry, bismuth telluride is employed for its thermoelectric cooling and power generation applications. Its ability to efficiently convert heat into electricity makes it a valuable material for creating energy-efficient systems.
Used in Power Generation Application:
Bismuth telluride is used in power generation applications, where it can convert waste heat from industrial processes into usable electrical energy. This not only improves energy efficiency but also helps in reducing greenhouse gas emissions.
Used in Commercial Applications:
For commercial use, bismuth telluride (Bi2Te3) is often "doped" with selenium sulfide to alter its conductivity. This doping process enhances the material's performance in various applications, making it more suitable for widespread use in different industries.
Reactivity Profile
BISMUTH TELLURIDE may emit toxic fumes of tellurium when heated to decomposition. Incompatible with strong oxidizing agents such as nitric acid or bromine, chlorine or fluorine. Moderate fire hazard by reaction with such materials. May react with strong acids to evolve toxic gases; may react slowly with water to evolve toxic gases. Slight explosion hazard with moisture.
Hazard
Toxic.
Health Hazard
Bismuth telluride, either alone
or doped with selenium sulfide, is apparently of
very low toxicity.
In limited industrial experimental work
with bismuth telluride under controlled conditions
(vacuum hoods), no adverse health
effects were encountered other than tellurium
breath.
Potential Exposure
Bismuth telluride is used in thermoelectric
cooling, power generation, semiconductor manufacture;
pharmaceuticals; medical therapy; cosmetics.
Exposure involves those working in “Silicon Valley” and
similar locations around the world. An alloy of two metallic
elements that are sometimes doped with SeS. The SeS
dopant alters the electrical properties, but has too low a
concentration to affect the chemical properties.
Shipping
UN3284 Tellurium compound, n.o.s., Hazard
Class: 6.1; Labels: 6.1—Poisonous materials, Technical
Name Required.
Incompatibilities
Reacts with acids forming toxic gases.
Incompatible with oxidizers (chlorates, nitrates, peroxides,
permanganates, perchlorates, chlorine, bromine, fluorine,
etc.); contact may cause fires or explosions. Keep away
from alkaline materials, strong bases, strong acids, oxoacids,
epoxides. Toxic and flammable gas may slowly
evolve from contact with moisture.
Check Digit Verification of cas no
The CAS Registry Mumber 1304-82-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,0 and 4 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1304-82:
(6*1)+(5*3)+(4*0)+(3*4)+(2*8)+(1*2)=51
51 % 10 = 1
So 1304-82-1 is a valid CAS Registry Number.
InChI:InChI=1/2Bi.3Te/q2*+3;3*-2
