Tellurium

Tenative telluriumtellurideTe 3 123 Te128TeTe ∞ Te 2 Tl
Tellurium is a chemical element with the symbol Te and atomic number 52.wikipedia
457 Related Articles

Metalloid

metalloidsMetallicmetalloid staircase
It is a brittle, mildly toxic, rare, silver-white metalloid.
The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium.

Selenium

SeSe 3 selenium poisoning
Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens.
It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic.

Chalcogen

group 1616chalcogens
Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens.
It consists of the elements oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and the radioactive element polonium (Po).

Martin Heinrich Klaproth

Martin KlaprothKlaprothH. Klaproth
Tellurium-bearing compounds were first discovered in 1782 in a gold mine in Kleinschlatten, Transylvania (now Zlatna, Romania) by Austrian mineralogist Franz-Joseph Müller von Reichenstein, although it was Martin Heinrich Klaproth who named the new element in 1798 after the Latin word for "earth", tellus.
Martin Heinrich Klaproth (1 December 1743 – 1 January 1817) was a German chemist who discovered uranium (1789), zirconium (1789), and cerium (1803), and named titanium (1795) and tellurium (1798).

Cadmium telluride

CdTecadmium telluride (CdTe)new theoretical model for CdTe
Applications in CdTe solar panels and cadmium telluride semiconductors also consume a considerable portion of tellurium production.
Cadmium telluride (CdTe) is a stable crystalline compound formed from cadmium and tellurium.

Franz-Joseph Müller von Reichenstein

Franz Joseph Müller von ReichensteinF.-J.M. von ReichensteinFranz Joseph Muller
Tellurium-bearing compounds were first discovered in 1782 in a gold mine in Kleinschlatten, Transylvania (now Zlatna, Romania) by Austrian mineralogist Franz-Joseph Müller von Reichenstein, although it was Martin Heinrich Klaproth who named the new element in 1798 after the Latin word for "earth", tellus.
During his time in Transylvania he discovered tellurium in 1782.

Tellurium copper

copper tellurium
Commercially, the primary use of tellurium is copper (tellurium copper) and steel alloys, where it improves machinability.
Tellurium copper is an alloy of copper and tellurium.

Atomic number

proton numberZatomic numbers
Tellurium is a chemical element with the symbol Te and atomic number 52.
However, in consideration of the elements' observed chemical properties, he changed the order slightly and placed tellurium (atomic weight 127.6) ahead of iodine (atomic weight 126.9).

Symbol (chemistry)

symbolchemical symbolchemical symbols
Tellurium is a chemical element with the symbol Te and atomic number 52.

Dimethyl telluride

(CH 3 ) 2 Tedimethyltelluride
In humans, tellurium is partly metabolized into dimethyl telluride, (CH 3 ) 2 Te, a gas with a garlic-like odor exhaled in the breath of victims of tellurium exposure or poisoning.
Dimethyl telluride is an organotelluride compound, formula (CH 3 ) 2 Te, also known by the abbreviation DMTe.

Gold

Aunative goldgold dust
Tellurium is sometimes found in its native (i.e., elemental) form, but is more often found as the tellurides of gold such as calaverite and krennerite (two different polymorphs of AuTe 2 ), petzite, Ag 3 AuTe 2, and sylvanite, AgAuTe 4.
Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides).

Gold chalcogenides

gold telluridegold telluridesgold tellurides and sulfides
Gold telluride minerals are the most notable natural gold compounds.
Gold chalcogenides are compounds formed between gold and one of the chalcogens, elements from group 16 of the periodic table: oxygen, sulfur, selenium, or tellurium.

Semiconductor

semiconductorssemiconductingsemiconductor material
Tellurium is a semiconductor that shows a greater electrical conductivity in certain directions depending on atomic alignment; the conductivity increases slightly when exposed to light (photoconductivity).
These include hydrogenated amorphous silicon and mixtures of arsenic, selenium and tellurium in a variety of proportions.

Krennerite

Tellurium is sometimes found in its native (i.e., elemental) form, but is more often found as the tellurides of gold such as calaverite and krennerite (two different polymorphs of AuTe 2 ), petzite, Ag 3 AuTe 2, and sylvanite, AgAuTe 4.
Krennerite is an orthorhombic gold telluride mineral which can contain variable amounts of silver in the structure.

Sylvanite

Tellurium is sometimes found in its native (i.e., elemental) form, but is more often found as the tellurides of gold such as calaverite and krennerite (two different polymorphs of AuTe 2 ), petzite, Ag 3 AuTe 2, and sylvanite, AgAuTe 4.
Sylvanite or silver gold telluride, (Ag,Au)Te 2, is the most common telluride of gold.

Petzite

Tellurium is sometimes found in its native (i.e., elemental) form, but is more often found as the tellurides of gold such as calaverite and krennerite (two different polymorphs of AuTe 2 ), petzite, Ag 3 AuTe 2, and sylvanite, AgAuTe 4.
The mineral petzite, Ag 3 AuTe 2, is a soft, steel-gray telluride mineral generally deposited by hydrothermal activity.

Tellurate

Orthotelluratetellurate ion
Natural tellurite and tellurate minerals also occur, formed by oxidation of tellurides near the Earth's surface.
In chemistry tellurate is a compound containing an oxyanion of tellurium where tellurium has an oxidation number of +6.

Telluride, Colorado

TellurideTown of TellurideTelluride, CO
The city of Telluride, Colorado, was named in hope of a strike of gold telluride (which never materialized, though gold metal ore was found).
The town was named after valuable ore compounds of the chemical element tellurium, a metalloid element which forms natural tellurides, the most notable of which are telluride ores of gold and silver.

Zlatna

AmpelumZalatnaAmpelium
Tellurium-bearing compounds were first discovered in 1782 in a gold mine in Kleinschlatten, Transylvania (now Zlatna, Romania) by Austrian mineralogist Franz-Joseph Müller von Reichenstein, although it was Martin Heinrich Klaproth who named the new element in 1798 after the Latin word for "earth", tellus.
Tellurium was first discovered in a Zlatna mine in 1782 by Austrian mineralogist Franz-Joseph Müller von Reichenstein.

Antimony

Sbantimonialantimonium
This ore was known as "Faczebajer weißes blättriges Golderz" (white leafy gold ore from Faczebaja, German name of Facebánya, now Fața Băii in Alba County) or antimonalischer Goldkies (antimonic gold pyrite), and according to Anton von Rupprecht, was Spießglaskönig (argent molybdique), containing native antimony.
In accordance with periodic trends, it is more electronegative than tin or bismuth, and less electronegative than tellurium or arsenic.

Tellurite

Natural tellurite and tellurate minerals also occur, formed by oxidation of tellurides near the Earth's surface.
Tellurite is a rare oxide mineral composed of tellurium dioxide (TeO 2 ).

Bismuth telluride

Bi 2 Te 3 Bismuth(III) telluride
The 1960s brought an increase in thermoelectric applications for tellurium (as bismuth telluride), and in free-machining steel alloys, which became the dominant use.
Bismuth telluride (Bi 2 Te 3 ) is a gray powder that is a compound of bismuth and tellurium also known as bismuth(III) telluride.

Telluric acid

orthotelluric acidTe(OH) 6 H 2 TeO 4
Amorphous tellurium is a black-brown powder prepared by precipitating it from a solution of tellurous acid or telluric acid (Te(OH) 6 ).
Telluric acid is formed by the oxidation of tellurium or tellurium dioxide with a powerful oxidising agent such as hydrogen peroxide, chromium trioxide or sodium peroxide.

Platinum

Ptcompounds of platinumdouble Platinum
Its extreme rarity in the Earth's crust, comparable to that of platinum, is due partly to its formation of a volatile hydride that caused tellurium to be lost to space as a gas during the hot nebular formation of Earth, and partly to tellurium's low affinity for oxygen, which causes it to bind preferentially to other chalcophiles in dense minerals that sink into the core.
During electrorefining of copper, noble metals such as silver, gold and the platinum-group metals as well as selenium and tellurium settle to the bottom of the cell as "anode mud", which forms the starting point for the extraction of the platinum-group metals.

Sodium tellurite

Na 2 TeO 3
The metal ions are reduced to the metals, while the telluride is converted to sodium tellurite.
Sodium tellurite is an inorganic tellurium compound with formula Na 2 TeO 3.