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Tellurium

CAS No.13494-80-9
Chemical Name:Tellurium
Synonyms:TELLOY;tellur;TELLERIUM;TELLURIUM;nci-c60117;TellurStcke;aurumparadoxum;tellur(polish);TELLURIUM METAL;TelluriumchunkN
CBNumber:CB3853069
Molecular Formula:Te
Formula Weight:127.6
MOL File:13494-80-9.mol
Tellurium Property
mp : 450 °C(lit.)
bp : 990 °C(lit.)
density : 6.24 g/mL at 25 °C(lit.)
form : shot
Merck : 13,9201
CAS DataBase Reference: 13494-80-9(CAS DataBase Reference)
Safety
Hazard Codes : T
Risk Statements : 25
Safety Statements : 45
RIDADR : UN 3288 6.1/PG 3
WGK Germany : 3
RTECS : WY2625000
HazardClass : 8
PackingGroup : III

Tellurium Chemical Properties,Usage,Production

Chemical Properties
CLEAR COLOURLESS SOLUTION
General Description
Grayish-white, lustrous, brittle, crystalline solid; dark-gray to brown, amorphous powder with metallic characteristics. Used as a coloring agent in chinaware, porcelains, enamels, glass; producing black finish on silverware; semiconductor devices and research; manufacturing special alloys of marked electrical resistance. Improves mechanical properties of lead; powerful carbide stabilizer in cast iron, Tellurium vapor in "daylight" lamps, vulcanization of rubber. Blasting caps. Semiconductor research.
Air & Water Reactions
A finely divided suspension of elemental Tellurium in air will explode. Insoluble in water.
Reactivity Profile
Tellurium is attacked by chlorine fluoride with incandescence. When Tellurium and potassium are warmed in an atmosphere of hydrogen, combination occurs with incandescence [Mellor 11:40. 1946-47]. Burning Tellurium produces toxic Tellurium oxide gas. Avoid solid sodium, halogens, interhalogens, metals, hexalithium disilicide. Reacts with nitric acid; reacts with concentrated sulfuric acid forming a red solution. Dissolves in potassium hydroxide in the presence of air with formation of deep red solution; combines with halogens. Avoid antimony and chlorine trifluoride; chlorine trifluoride reacts vigorously with Tellurium producing flame. Fluorine and Tellurium react with incandescence. Lithium silicide attacks Tellurium with incandescence. Reaction with zinc is accompanied by incandescence (same potential with cadmium, only hazard is less). A vigorous reaction results when liquid Tellurium is poured over solid sodium [EPA, 1998].
Health Hazard
Causes central nervous system depression. Moderate skin and eye irritant. Tellurium is capable of doing harm within the body by replacing the essential element sulfur.
Fire Hazard
A finely divided suspension of elemental Tellurium in air will explode. Burning Tellurium produces toxic Tellurium oxide gas. Avoid solid sodium, halogens, interhalogens, metals, hexalithium disilicide. Reacts with nitric acid; reacts with concentrated sulfuric acid forming a red solution. Dissolves in potassium hydroxide in the presence of air with formation of deep red solution; combines with halogens. Avoid antimony and chlorine trifluoride; chlorine trifluoride reacts vigorously with Tellurium producing flame. Fluorine and Tellurium react with incandescence. Lithium silicide attacks Tellurium with incandescence. Reaction with zinc is accompanied by incandescence (same potential with cadmium, only hazard is less). A vigorous reaction results when liquid Tellurium is poured over solid sodium.
Tellurium Preparation Products And Raw materials
Raw materials
Selenium TELLURIUM DIOXIDE Tellurous acid Sodium sulfide SODIUM TETRASULFIDE Hydroxylamine hydrochloride
Preparation Products
Zinc chloride Allyl chloride
Tellurium Suppliers      Global( 123)Suppliers     
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13494-80-9(Tellurium)Related Search:
SODIUM TELLURITE TELLURIUM DIOXIDE 99% Tellurium(IV) fluoride Tellurium-131 Tellurium Atomic Absorption Standard Solution, 1 mg/ml Te in 2% KOH TELLURIUM (TE) IN APPROX. 1 M NITRIC ACID Tellurium, tetrakis(diethylcarbamodithioato-.kappa.S,.kappa.S)-, (DD-8-11111111)- TELLURIUM (TE) IN APPROX. 20 % HYDROCHLORIC ACID Tellurium, bis(trimethylsilyl)- Tellurium 128 BISMUTH TELLURIDE MOLYBDENUM TELLURIDE ARSENIC (III) TELLURIDE TELLURIUM(IV) OXIDE, 99.995%,TELLURIUM DIOXIDE, RANDOM PIECES, OPTICAL GRADE,Tellurium(IV) oxide, 99+%,Tellurium(IV)oxide,tech.,Tellurium(IV)oxide,99.995%(metalsbasis),TELLURIUM OXIDE, 99.5%,tellurium(iv) oxide, puratronic,Tellurium(IV)oxide(99.9995%-Te)PURATREM,TELLURIUM DIOXIDE, 99+%,TELLURIUM DIOXIDE, 99.9995%,TELLURIUM OXIDE: 99.9%,Tellurium(IV) oxide, Puratronic(R), 99.9995% (metals basis) POTASSIUM TELLURITE TELLURIUM TETRACHLORIDE, anhydrous, powder, 99.999%,Tellurium(Ⅳ)chloride GALLIUM (III) TELLURIDE dimethyl telluride
13494-80-9 TELLURIUM PLASMA EMISSION SPECTROSCOPY STANDARD TELLURIUM PLASMA EMISSION STANDARD TELLURIUM, PLASMA STANDARD SOLUTION TELLURIUM SINGLE ELEMENT PLASMA STANDARD TELLURIUM SINGLE ELEMENT STANDARD TELLURIUM SINGLE ELEMENT STANDARD ICP-AES TELLURIUM STANDARD TELLURIUM STANDARD SOLUTION TELLURIUM METAL TELLERIUM TELLURIUM AA SINGLE ELEMENT STANDARD TELLURIUM, AAS STANDARD SOLUTION TELLURIUM AA STANDARD TELLURIUM ATOMIC ABSORPTION STANDARD TELLURIUM ATOMIC ABSORPTION STANDARD SOLUTION TELLURIUM BROKEN TELLOY TELLURIUM TELLURIUM ICP/DCP STANDARD TELLURIUM ICP STANDARD aurumparadoxum metallumproblematum nci-c60117 tellur tellur(polish) tellureelementaire Tellurium broken ingot (99.99+%) Tellurium powder Tellurium solution 10 000 ppm Tellurium solution 1000 ppm TelluriumchunkN Telluriumingotbrokenpieces TelluriumpiecesN TelluriumpowderNmesh TellurStcke TELLURIUM, -40 MESH, 99.997% TELLURIUM, PIECES, 99.999% TELLURIUM, POWDER, -200 MESH, 99.8% TELLURIUM, GRANULES, -5+50 MESH, 99.99% TELLURIUM, PIECES TELLURIUM, INGOT, 99.999% TELLURIUM, SHOT, 1-2MM, 99.999% Tellurium(Metal)Powder99.9% Tellurium, lump, zone refined, 99.999+% Tellurium, ingot, broken pieces, 99.9999+% Tellurium powder, 99.8% TELLURIUM METAL POWDER Tellurium standard solution, 1 mg/ml Te in 2% KOH, for AAS Tellurium, powder, 200 mesh, 99.80% Tellurium, reagent, powder, 99+% TELLURIUM 99.999% Telluriumbrokeningot(99.999%) Telluriumbrokeningot(99.9999%) Telluriumpowder(99.9%) Telluriumpowder(99.999%) TELLURIUM: 99.5%, POWDER TELLURIUM POWDER: 99.999%, 30 MESH
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