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CAS No 13494-80-9 , tellurium

  • Name: tellurium
  • Synonyms: metallic; Tellur; Tellurium; Tellur [Polish]; Aurum paradoxum;tellurium; Tellurium element;Telloy; Metallum problematum; 13494-80-9;
  • CAS Registry Number:
  • Transport: UN 3288 6.1/PG 3
  • Flash Point: °C
  • Density: 6.25
  • Safety Statements: R25:Toxicifswallowed.;
  • Hazard Symbols: T:Toxic;
  • Flash Point: °C
  • EINECS: 236-813-4
  • Molecular Weight: 127.6
  • InchiKey: PORWMNRCUJJQNO-UHFFFAOYSA-N
  • InChI: InChI=1S/Te
  • Risk Statements: S22:Donotinhaledust.;S24/25:Avoidcontactwithskinandeyes.;
  • Molecular Formula: Te
  • Molecular Structure:CAS No:13494-80-9 tellurium
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13494-80-9 Tellurium acid

  • Product:Tellurium acid The molecular formula:H6TeO6 CAS:13494-80-9 Purity:99.5%
  • China Titan Advanced Mate ials Inc. [Manufacturer]
  • Tel: 86-021-58541956
  • Address: Rm 301-305,No.6 Bldg,35 Block,2216 JinGao Rd shanghai,ShanghaiChina
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13494-80-9 Tellurium Granule (0.5-2mm) Te

  • Tellurium Granule 1,Physical character: Atomic Weight: 127.60 Electronegative: 2.1 Density: =6.24 gcm3 Melting Point: 449.51 Boiling Point: 988 ; 2,Purity :4N or 99.99%; 3,Process: Anode mud Electrolysis -Vacuum distillation--Pelletize under argon sh...
  • Min. Order: 3000
  • China Sichuan Xinlong Tellurium Industry Co.,Ltd [Manufacturer]
  • Tel: 86-28-85880454
  • Address: No.485 Tengfei 3rd Road, Southwest Economic airport, Shuangliu, Chengdu, Ch Chengdu,SichuanChina
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13494-80-9 Tellurium Powder:-100mesh;-200mesh

  • Tellurium Powder (Te) 1, Physical character: Atomic Weight: 127.60 Electronegative: 2.1 Density: =6.24 gcm3 Melting Point: 449.51 Boiling Point: 988 2,Purity :4N or 99.99%; 3,Process: Anode mud Electrolysis -Vacuum distillationGrind; 4,Analysis :ICP-...
  • Min. Order: 3000
  • China Sichuan Xinlong Tellurium Industry Co.,Ltd [Manufacturer]
  • Tel: 86-28-85880454
  • Address: No.485 Tengfei 3rd Road, Southwest Economic airport, Shuangliu, Chengdu, Ch Chengdu,SichuanChina
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13494-80-9 Tellurium Te CAS NO.13494-80-9

  • Tellurium 1,Purity :5N (99.999%);6N(99.9999%);7N(99.99999%); 2,Technic: Anode mud - Electrolysis -Vacuum distillation-Zone melting-Second zone melting; 3,Analysis :ICP-MS,GDMS(All impurity elements is below 10ppm); 4,Dimension :Lump ,Ingot,Granule ,P...
  • Min. Order: 8000
  • China CNBM(Chengdu) Optoelectronic Materials Co,Ltd [Manufacturer]
  • Tel: 86-28-85880591
  • Address: No.485 Tengfei 3rd Road, Southwest Economic airport, Shuangliu, Chengdu, Ch Chengdu,SichuanChina
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13494-80-9 Tellurium Granule (0.5-2mm) Te CAS NO.13494-80-9

  • Tellurium Granule 1,Physical character: Atomic Weight: 127.60 Electronegative: 2.1 Density: ρ=6.24 g?cm?3 Melting Point: 449.51 ℃ Boiling Point: 988 ℃; 2,Purity :4N or 99.99%; 3,Process: Anode mud -Electrolysis -Vacuum distillation--Pelletize unde...
  • Min. Order: 8000
  • China CNBM(Chengdu) Optoelectronic Materials Co,Ltd [Manufacturer]
  • Tel: 86-28-85880591
  • Address: No.485 Tengfei 3rd Road, Southwest Economic airport, Shuangliu, Chengdu, Ch Chengdu,SichuanChina
Contact Supplier

13494-80-9 Tellurium powder:-100mesh;-200mesh CAS NO.13494-80-9

  • Tellurium Powder (Te) 1, Physical character: Atomic Weight: 127.60 Electronegative: 2.1 Density: ρ=6.24 g?cm?3 Melting Point: 449.51 ℃ Boiling Point: 988 ℃ 2,Purity :4N or 99.99%; 3,Process: Anode mud -Electrolysis -Vacuum distillation—Grind; 4,A...
  • Min. Order: 8000
  • China CNBM(Chengdu) Optoelectronic Materials Co,Ltd [Manufacturer]
  • Tel: 86-28-85880591
  • Address: No.485 Tengfei 3rd Road, Southwest Economic airport, Shuangliu, Chengdu, Ch Chengdu,SichuanChina
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13494-80-9 TELLURIUM BROKEN INGOT; 99.99%

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany ,Germany
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13494-80-9 Tellurium acid

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13494-80-9 Tellurium atomic absorption standard solution

  • Germany AppliChem mbH []
  • Tel: +49 6151 93 57 0
  • Fax: +49 6151 93 57 11
  • Address: Ottoweg 4 D-64291 Darmstadt ,Germany
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13494-80-9 TELLURIUM PIECES, 99.999%

  • United States MV Laboratories, Inc. [Manufacturer]
  • Tel: 908-788-6906
  • Fax: 908-788-1746
  • Address: MV Laboratories, Inc.
    843 Route 12 West, Suite B17
    Frenchtown, NJ 08825 ,United States
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References of tellurium
Title: Tellurium
CAS Registry Number: 13494-80-9
Synonyms: Aurum paradoxum; metallum problematum
Literature References: Te; at. wt 127.60; at. no. 52; valence 2, 4, 6. Group VIA (16). Diatomic (Te2) in the vapor state. Eight stable isotopes: 120 (0.089%); 122 (2.46%); 123 (0.87%); 124 (4.61%); 125 (6.99%); 126 (18.71%); 128 (31.79%); 130 (34.48%); artificial radioactive isotopes: 114-119; 121; 127; 129; 131-134. Present in the earth's crust to the extent of 0.002 ppm. Discovered by von Reichenstein in 1782; named by Klaproth in 1798. Occurs as tellurides in combination with metals in the minerals tetradymite, altaite, coloradolite; found as the dioxide, tellurite; found also native, associated with silver and gold. Prepn: Kracek, J. Am. Chem. Soc. 63, 1989 (1941); Fehér in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) pp 437-438. Prepn of spectrally pure Te for semiconductor devices: Weidel, Z. Naturforsch. 9a, 697 (1954). Symposium on organic selenium and tellurium compds: Y. Okamoto, W. H. H. Gunther, Eds., Ann. N.Y. Acad. Sci. 192, 1-225 (1972). Reviews: Stone, Caron in Rare Metals Handbook, C. A. Hampel, Ed. (Reinhold, New York, 1954) pp 405-415; Bagnall in Comprehensive Inorganic Chemistry vol. 2, J. C. Bailar, Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 935-1008; E. M. Elkin in Kirk-Othmer Encyclopedia of Chemical Technology vol. 22 (Wiley-Interscience, New York, 3rd ed., 1983) pp 658-679.
Properties: Grayish-white, lustrous, brittle, crystalline solid, hexagonal, rhombohedral structure, or dark-gray to brown, amorphous powder with metal characteristics. d (cryst) 6.11-6.27. mp 449.8°. bp 989.9°. Electrical resistivity (19.6°): 200,000 m-ohms-cm. Latent heat of fusion: 4.27 kcal/mole. Linear coefficient of thermal expansion: 16.8′10-6/°C. Modulus of elasticity: 6,000,000 psi. Specific heat (solid): 0.047 cal/g/°C. Magnetic susceptibility (18°): -0.31′10-6 cgs. Hardness (Mohs): 2.3. Thermal conductivity: 0.014 at 20°. Burns in air with a greenish-blue flame, forming the dioxide. Insol in water, in benzene, in carbon disulfide. Not attacked by hydrochloric acid; reacts with nitric acid; with concd or fuming sulfuric acids, forming a red soln; in presence of air dissolves in potassium hydroxide with formation of a deep-red soln. Combines with the halogens; does not react with sulfur or selenium.
Melting point: mp 449.8°
Boiling point: bp 989.9°
Density: d (cryst) 6.11-6.27
CAUTION: Potential symptoms of overexposure are garlic odor on breath and sweat; dry mouth, metal taste; somnolence; anorexia, nausea and no sweating; dermatitis. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 294.
Use: As coloring agent in chinaware, porcelains, enamels, glass; reagent in producing black finish on silverware; in manuf special alloys of marked electrical resistance; in semiconductor research.