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Hydrogen telluride

Hydrogen telluride Suppliers list
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 86-18871470254
Products Intro: Product Name:tellane
Purity:99% Package:5KG;1KG
Company Name: Zhuozhou Wenxi import and Export Co., Ltd
Tel: +8613111626072 (WhatsApp)
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Purity:99%+ HPLC Package:1KG;15USD|100KG;12USD|1000KG;10USD
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Tel: +86-29-89586680 18192503167
Products Intro: Product Name:Hydrogen telluride
Purity:99.00% Package:25kgs/Drum;200kgs/Drum Remarks:ISO 9001:2015 REACH Approved Manufacturer
Company Name: Mainchem Co., Ltd.  
Tel: +86-0592-6210733
Products Intro: Product Name:Hydrogen telluride
Company Name: Shanghai Meishui Chemical Technology Co., Ltd  
Tel: 021-60549325 18616193163
Products Intro: Product Name:Hydrogen telluride
Purity:>98% HPLC Package:100g;500g;1kg;10kg

Hydrogen telluride manufacturers

  • Hydrogen telluride
  • $15.00-10.00 / KG
  • 2021-08-12
  • CAS:7783-09-7
  • Min. Order: 1KG
  • Purity: 99%+ HPLC
  • Supply Ability: Monthly supply of 1 ton
Hydrogen telluride Basic information
Product Name:Hydrogen telluride
Synonyms:Hydrogen telluride;Dihydridetellurium;Dihydrotellurium;Tellurium hydride;TeH2;Einecs 231-981-5;tellane;ellane
Product Categories:
Mol File:7783-09-7.mol
Hydrogen telluride Structure
Hydrogen telluride Chemical Properties
Melting point -49°
Boiling point bp -2°
density dliq-12 2.68
form colorless gas
Water Solubility soluble H2O, unstable solution; soluble alcohol and alkalies [HAW93]
CAS DataBase Reference7783-09-7
Safety Information
MSDS Information
Hydrogen telluride Usage And Synthesis
DescriptionHydrogen telluride has the formula, H2Te. The simplest hydride of Te, it is rarely encountered because of its tendency to decompose to the constituent elements. Most compounds with Te–H bonds are unstable with respect to loss of H2. H2Te is chemically and structurally similar to H2S, and both are acidic species with H–X–H angles approaching 90°.The tellurides of the alkaline earth metals tend to immediately decompose on exposure to air, with liberation of tellurium. H2Te is prepared by the acidification of salts of Te2-,such as Al2Te3 and Na2Te.
Na2Te can be generated by the reaction of Na and Te in anhydrous ammonia. The intermediate in the acidification, the HTe is a stable anion.
H2Te is an endothermic compound, and is unstable in air, rapidly decomposing into water and elemental tellurium:
2H2Te+ O2 → 2H2O+ 2Te
It is almost as acidic as phosphoric acid (pKa=8.1×10-3), having a pKa value of about 2.3×10-3. It reacts with many metals to form tellurides. However, many of these are unstable relative to their decomposition to the elements. Its CAS number is 7783-09-7 and its molecular weight is 129.6158 g/mol. It is a colorless gas and is toxic if breathed. Its density is 3.310 g/cm3 and its melting point is –49°C with a boiling point of –2.2°C. Its solubility in water is 0.701 g/100 ml of water at 20°C.
Chemical PropertiesColorless gas.Soluble in water but unstable; soluble in alcohol and alkalies.
Physical propertiesColorless gas; strong garlic-like odor; stable to light when dry but under-goes photochemical decompostion in the presence of moisture and dust; den-sity 5.68 g/L; liquefies to a colorless unstable liquid at -2°C, decomposed bylight; liquid density 2.57 g/mL at -20°C; solidifies at -49°C; soluble in water,alcohol and alkalies; pKa 2.6 (for first dissociation constant at 18°C) and 11.0(the dissociation constant at 25°C) for the second replaceable hydrogen.
UsesIt is synthesized by the action of acid on aluminum telluride. It has no industrial uses.
PreparationHydrogen telluride is prepared by the reaction of aluminum telluride,Al2Te3 with hydrochloric acid:
Al2Te3 + 6HCl → 3H2Te + 2AlCl3
It also may be prepared by electrolysis of a 50% sulfuric acid solution using atellurium cathode.
HazardSee hydrogen selenide.
Hydrogen telluride Preparation Products And Raw materials
Tag:Hydrogen telluride(7783-09-7) Related Product Information
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