Located at Group 16 and Period 5 of the Periodic Table is one of the element alloyed so that it could be used to make Thermoelectric Devices. This is Tellurium.
Franz Joseph Müller von Reichenstein |
Martin Heinrich Klaproth |
Tellurium was only first isolated in 1798, which the German chemist Martin Heinrich Klaproth isolated the new element from a sample sent by Müller. After a thorough examination of the material, he concluded that a new metal was present in the sample. He called it Tellurium, but gave the credit of the discovery to Müller.
Tellurite |
Tellurium is quite a rare element as there is only 0.001 parts per million present in the Earth's crust today. Those minerals that contain Tellurium are minerals that includes calaverite, sylvanite and tellurite. It is also found uncombined in nature, but only very rarely. It is obtained commercially from the anode muds produced during the electrolytic refining of copper.
Tellurium can harm our health by causing nausea, vomiting and damage to the central nervous system.
Atomic Number : 52
Name : Tellurium
Latin Name : Tellurium
Electrons per shell : [ 2, 8, 18, 18, 6 ]
Discoverer : Franz Joseph Müller von Reichenstein
Isolator : Martin Heinrich Klaproth
Element's : Atomic Mass : 127.60 u
: Density : 6.24 g/cm3
: Type : Metalloids
Chemical Properties :
- Doesn't dissolve in water
- Doesn't react with hydrochloric acid
- Dissolves in most acids
- Produced Greenish - Blue flame and forms Tellurium Dioxide when burned with air.
- 56 isotopes : 3 of them are :
Tellurium - 125 : Protons : 52
: Neutrons : 73Tellurium - 128
: Electrons : 52
( Half Life : Stable )
Tellurium - 126 : Protons : 52
: Neutrons : 74
: Electrons : 52
( Half Life : Stable )
Tellurium - 128 : Protons : 52
: Neutrons : 76
: Electrons : 52
( Half Life : 2.2 septillion years )
- Grayish - White
- Shiny surface
- Melting Point : 449.8 degrees Celsius ( 841.6 Fahrenheit )
- Boiling Point : 989.9 degrees Celsius ( 1814 Fahrenheit )
How Tellurium got its name?
Tellurium was named, however, by M. Klaproth, who continued Müller von Reichenstein's work and isolated the element in 1798, instead of the discoverer himself . Tellurium's name originates from the Latin tellus , which means "earth." Tellurium is used in photocopiers to enhance picture quality.
Normal Picture Enhanced Picture |
Uses
Tellurium is often used to improve the machinability of copper and stainless steel. It's used to make blasting caps, added to cast iron and used in ceramics. Adding tellurium to lead improves the strength and hardness of the metal and decreases corrosion. Many thermoelectric devices are made with bismuth telluride. Tellurium is also used to make rubber objects more durable.
THIS IS THE END OF TELLURIUM
To go to homepage, click this link :
Our Homepage
To go to Chemistry Element page, click this link :
garnetchemistryelement.blogspot.com
To go to homepage, click this link :
Our Homepage
To go to Chemistry Element page, click this link :
garnetchemistryelement.blogspot.com
Thanks for visiting.
If there is any improvements needed, feel free to comment at the comment section below.
Thank you.
If there is any improvements needed, feel free to comment at the comment section below.
Thank you.
No comments:
Post a Comment