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Germanium telluride

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Germanium telluride

EINECS 234-706-7
CAS No. 12025-39-7 Density 6.14 g/mL at 25 °C(lit.)
PSA 0.00000 LogP -0.31160
Solubility Insoluble in water. Melting Point 725 °C(lit.)
Formula GeTe Boiling Point N/A
Molecular Weight 200.24 Flash Point N/A
Transport Information N/A Appearance Black Crystal
Safety 36 Risk Codes 22
Molecular Structure Molecular Structure of 12025-39-7 (GERMANIUM TELLURIDE) Hazard Symbols N/A

Germaniummonotelluride;Germanium telluride;Germanous telluride;


Germanium telluride Specification

The Germanium telluride is metallorganics that the fomular is GeTe. With the CAS registry number 12025-39-7, its IUPAC name is germanium; tellurium. The other registry numbers are 11073-85-1, 26722-44-1 and 51682-06-5. It is black crystal which is stable under normal temperature and pressure. In addition, this chemical must be avoided light, fire and high temperature. It shows semimetallic conduction and ferroelectric. There are three major crystalline forms of this product, room-temperature α (rhombohedral) and γ (orthorhombic) structures and high-temperature β (cubic, rocksalt-type) phase; α phase being most common. It is slightly hazardous to water, so people should not release the material to the environment without proper governmental permits. Furthermore, Germanium telluride must be sealed in the container and the container should placed in the cool and dry aera. 

The other characteristics of this product can be summarized as: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 0; (3)Rotatable Bond Count: 0; (4)Exact Mass: 203.827401; (5)MonoIsotopic Mass: 203.827401; (6)Heavy Atom Count: 2; (7)Covalently-Bonded Unit Count: 2.

Preparation of Germanium telluride: Heating the Ge (low resistivity) and Te (99.998%) to their melting point in vacuum quartz tube, then we can obtain GeTe. Zone melting method can be used to get single crystal.

When you are using this chemical, please be cautious about it as the following:
It is harmful if swallowed. And it is irritating to the skin, eyes and mucous membranes. If you want to contact this product, you must wear suitable protective clothing.

People can use the following data to convert to the molecule structure.
1. SMILES: [Ge].[Te];
2. InChI: InChI=1/Ge.Te;

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