Tellane

Base Information Edit

Chemical Name:Tellane
CAS No.:7783-09-7
Molecular Formula:H₂Te
Molecular Weight:129.616
Hs Code.:
Nikkaji Number:J95.176E,J95.290G
Wikidata:Q411266
Mol file:7783-09-7.mol

Synonyms:tellane;H2Te;Dihydrotellurium;Tellurwasserstoff;dihydridotellurium;hydrogen tellanide;dihydrogen tellanide;[TeH2];CHEBI:49907;UNII-7F4735942K;EINECS 231-981-5;SY061554;Q411266

Suppliers and Price of Tellane

Supply Marketing:Edit

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

Total 10 raw suppliers

Chemical Property of Tellane Edit

Chemical Property:

Melting Point:-49°
Boiling Point:bp -2°
PSA：0.00000
Density:dliq-12 2.68
LogP:-0.15580
Water Solubility.:soluble H2O, unstable solution; soluble alcohol and alkalies [HAW93]
Hydrogen Bond Donor Count:0
Hydrogen Bond Acceptor Count:0
Rotatable Bond Count:0
Exact Mass:131.9218728
Heavy Atom Count:1
Complexity:0

Purity/Quality:: 98%,99%, ^*data from raw suppliers

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Canonical SMILES:[TeH2]
Description Hydrogen 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.
Physical properties Colorless 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.
Uses It is synthesized by the action of acid on aluminum telluride. It has no industrial uses.

Technology Process of Tellane

There total 97 articles about Tellane which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 100.0%

: 14683-12-6
tellurium

: hydrogen

: 13494-80-9,7783-09-7
hydrogen telluride

Guidance literature:: In gas; other Radiation; Laser thermochemical synthesis of gaseous TeH2 from gaseous H and Te atoms.;

Reference yield: 80.0%

: aluminum telluride

: 13494-80-9,7783-09-7
hydrogen telluride

Guidance literature:: In hydrogenchloride; addn. of pure Al2Te3 (from Te vapor and heated Al) into excess of 4n HCl soln. free of air in special app. under exclusion of O2, moisture and light; gas with 40% H2Te;;