Sodium telluride

Base Information

• Chemical Name: Sodium telluride
• CAS No.: 12034-41-2
• Molecular Formula: Na₂Te
• Molecular Weight: 173.58
• European Community (EC) Number: 234-806-0
• DSSTox Substance ID: DTXSID80894843
• Wikipedia: Sodium_telluride
• Wikidata: Q2405605
• Mol file: 12034-41-2.mol

Synonyms:Sodium telluride;sodiotellanylsodium;12034-41-2;Disodium telluride;Sodium telluride (Na2Te);Na2Te;EINECS 234-806-0;Na2-Te;Telururo de sodio (Na2Te);DTXSID80894843;MFCD00053400;Q2405605

Chemical Property of Sodium telluride

Chemical Property:

• Melting Point: 953℃
• Boiling Point: °Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: g/cm³
• LogP: -0.38080
• Sensitive.: Moisture Sensitive
• Water Solubility.: Highly soluble in water.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 175.8857613
• Heavy Atom Count: 3
• Complexity: 2.8

Purity/Quality:

98%,99%, ^*data from raw suppliers

Sodium telluride 99.9% (metals basis) ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: [Na][Te][Na]
• Uses: Sodium telluride is used as a semiconductor, as a reducing agent and to prepare organic tellurium compounds. It is used in the reduction of aromatic carbonyl compounds to alcohols. It is also used in the preparation of pyrrolo[2,3-d]pyrimidines (7-deaza-9H-purines) from aromatic nitriles. It is used to prepare nanocrystalline zinc telluride.

Technology Process of Sodium telluride

There total 42 articles about Sodium telluride 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%

tellurium (14683-12-6) + sodium (7440-23-5) → disodium telluride (12034-41-2)

Guidance literature:

In neat (no solvent); Na was warmed in high vacuum and added to liquid Te in N2 atmosphere, NH3 was condensed over the mixture, the NH3 was slowly evaporated;; tempered at 400-500°C, stored under N2;;

Reference yield: 100.0%

tellurium (14683-12-6) + sodium dithionite → disodium telluride (12034-41-2)

Guidance literature:

In sodium hydroxide; Te was treated with Na2S2O4 in NaOH(10%) soln. at 75-80°C under H2 (free from O2);;

Reference yield: 98.0%

tellurium (14683-12-6) + sodium triethylborohydride → disodium telluride (12034-41-2)

Guidance literature:

In 1,2,5-trimethyl-benzene; byproducts: H2, B(CH2CH3)3; Ar atmosphere, 150°C (11.5 h); elem. anal.;

upstream raw materials:

tellurium

rongalite

sodium

tellurite^(2-)

Downstream raw materials:

mercury(II) telluride

tungsten ditelluride

manganese ditelluride

coloradoite

Refernces

SODIUM HYDROGEN TELLURIDE AS A USEFUL NUCLEOPHILIC REAGENT FOR THE CLEAVAGE OF EPOXIDES AND OF QUATERNARY AMMONIUM SALTS

10.1016/S0040-4039(00)95051-2

The research investigates the utility of sodium hydrogen telluride as a nucleophilic reagent for the cleavage of epoxides and quaternary ammonium salts. The purpose of the study was to explore the reagent's ability to open epoxides via an SN2 process to yield telluro-alcohols, which could then be reduced to alcohols using nickel boride. The research also discovered a method to convert telluro-alcohols into olefins with high yield by treatment with p-toluene-sulphonyl chloride in pyridine. Sodium hydrogen telluride was found to be an efficient reagent for the dealkylation of quaternary ammonium salts, a process that complements the classical Emde cleavage and offers the advantage of functionalized cleavage products. The chemicals used in the process include sodium hydrogen telluride, ethanol, 1,2-dibromoethane, nickel boride, pyridine, toluene-p-sulphonyl chloride, and various epoxides and ammonium salts. The conclusions of the study highlight the effectiveness of sodium hydrogen telluride in organic synthesis, particularly in the formation of carbon-tellurium bonds and the conversion of epoxides into alcohols and olefins.

Chalcogenopyranones from disodium chalcogenide additions to 1,4- pentadiyn-3-ones. The role of enol ethers as intermediates

10.1002/jhet.5570360322

The research focuses on the synthesis of 4H-chalcogenopyran-4-ones using disodium chalcogenides and enol ethers derived from 1,4-pentadiyn-3-ones. Key chemicals involved include diynones such as 1,5-diphenyl-1,4-pentadiyn-3-one (2a), 1,5-di-tert-butyl-1,4-pentadiyn-3-one (2b), and 1,5-di-(4-N,N-dimethylaminophenyl)-1,4-pentadiyn-3-one (2c), which are reacted with disodium chalcogenides like disodium sulfide, disodium selenide, and disodium telluride. Enol ethers 9 are formed as intermediates from the addition of ethanol to diynones in sodium ethoxide/ethanol, and these enol ethers react with disodium chalcogenides to yield 2,6-disubstituted chalcogenopyranones with high selectivity. The study also examines the addition of hydrogen sulfide to diynones and the role of intermediates in the formation of chalcogenopyranones and dihydrochalcogenophenes. The research aims to improve the synthesis of chalcogenopyranones, which have applications in various fields including as electron-accepting materials in electrophotography and as heat-generating elements in optical recording.