Germanium Sulfide

CAS 12025-32-0
Linear Formula: GeS
MDL Number: MFCD00135539
EC No.: 234-704-6

Request Quote

(5N) 99.999% Germanium Sulfide Ingot GE-S-05-I Pricing
(5N) 99.999% Germanium Sulfide Lump GE-S-05-L Pricing
(5N) 99.999% Germanium Sulfide Powder GE-S-05-P Pricing
(5N) 99.999% Germanium Sulfide Sputtering Target GE-S-05-ST Pricing


Compound Formula GeS
Molecular Weight 104.71
Appearance Solid
Melting Point 615 °C (1,139 °F)
Boiling Point N/A
Density N/A
Monoisotopic Mass 105.89325 Da
Exact Mass 105.893249

Health & Safety Information

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
Transport Information N/A

View and Print SDS


Date Accessed: 05/26/2016
Date Revised: 05/15/2015


Product Name: Germanium Sulfide

Product Number: All applicable American Elements product codes, e.g. GE-S-05-I, GE-S-05-L, GE-S-05-P, GE-S-05-ST

CAS #: 12025-32-0

Relevant identified uses of the substance: Scientific research and development

Supplier details:
American Elements
1093 Broxton Ave. Suite 2000
Los Angeles, CA 90024
Tel: +1 310-208-0551
Fax: +1 310-208-0351

Emergency telephone number:
Domestic, North America +1 800-424-9300
International +1 703-527-3887


Safety Data Sheet according to Regulation (EC) No. 1907/2006 (REACH). The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. American Elements shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale. COPYRIGHT 1997-2016 AMERICAN ELEMENTS. LICENSED GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY.


Germanium Sulfide is a crystalline solid used as a semiconductor and in photo optic applications. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.


Thioxo-λ2-germane, sulfanylidenegermanium, thioxogermanium, Germanium monosulfide, Germanium(II) sulfide

Chemical Identifiers

Linear Formula GeS
CAS 12025-32-0
Pubchem CID 6367215
MDL Number MFCD00135539
EC No. 234-704-6
IUPAC Name sulfanylidenegermanium
Beilstein Registry No. N/A
InchI Identifier InChI=1S/GeS/c1-2

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See more Germanium products. Germanium (atomic symbol: Ge, atomic number: 32) is a Block P, Group 14, Period 4 element with an atomic weight of 72.63. Germanium Bohr ModelThe number of electrons in each of germanium's shells is 2, 8, 18, 4 and its electron configuration is [Ar] 3d10 4s2 4p2. The germanium atom has a radius of 122.5 pm and a Van der Waals radius of 211 pm. Germanium was first discovered by Clemens Winkler in 1886. In its elemental form, germanium is a brittle grayish white semi-metallic element. Germanium is too reactive to be found naturally on Earth in its native state. High Purity (99.999%) Germanium (Ge) MetalIt is commercially obtained from zinc ores and certain coals. It is also found in argyrodite and germanite. It is used extensively as a semiconductor in transitors, solar cells, and optical materials. Other applications include acting an alloying agent, as a phosphor in fluorescent lamps, and as a catalyst. The name Germanium originates from the Latin word "Germania" meaning "Germany," For more information on germanium, including properties, safety data, research, and American Elements' catalog of germanium products, visit the Germanium element page.

See more Sulfur products. Sulfur (or Sulphur) (atomic symbol: S, atomic number: 16) is a Block P, Group 16, Period 3 element with an atomic radius of 32.066. Sulfur Bohr ModelThe number of electrons in each of Sulfur's shells is 2, 8, 6 and its electron configuration is [Ne] 3s2 3p4. In its elemental form, sulfur has a light yellow appearance. The sulfur atom has a covalent radius of 105 pm and a Van der Waals radius of 180 pm. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, and epsom salts. Sulfur has been known since ancient times but was not accepted as an element until 1777, when Antoine Lavoisier helped to convince the scientific community that it was an element and not a compound.

Recent Research

Electrolytic Formation of Crystalline Silicon/Germanium Alloy Nanotubes and Hollow Particles with Enhanced Lithium-Storage Properties., Xiao, Wei, Zhou Jing, Yu Le, Wang Dihua, and Lou Xiong Wen David , Angew Chem Int Ed Engl, 2016 May 9, (2016)

K- and L-edge X-ray absorption spectrum calculations of closed-shell carbon, silicon, germanium, and sulfur compounds using damped four-component density functional response theory., Fransson, Thomas, Burdakova Daria, and Norman Patrick , Phys Chem Chem Phys, 2016 May 21, Volume 18, Issue 19, p.13591-603, (2016)

Optical net gain measurement in n-type doped germanium waveguides under optical pumping for silicon monolithic laser., Okumura, Tadashi, Oda Katsuya, Kasai Junichi, Sagawa Misuzu, and Suwa Yuji , Opt Express, 2016 May 2, Volume 24, Issue 9, p.9132-9, (2016)

Germanium Dumbbells in a New Superconducting Modification of BaGe3., Castillo, Rodrigo, Baranov Alexey I., Burkhardt Ulrich, Cardoso-Gil Raul, Schnelle Walter, Bobnar Matej, and Schwarz Ulrich , Inorg Chem, 2016 May 2, Volume 55, Issue 9, p.4498-503, (2016)

High speed and high power polarization insensitive germanium photodetector with lumped structure., Chen, Guanyu, Yu Yu, Xiao Xi, and Zhang Xinliang , Opt Express, 2016 May 2, Volume 24, Issue 9, p.10030-9, (2016)

Simulation of germanium nanobeam electro-optical 2 × 2 switches and 1 × 1 modulators for the 2 to 5 µm infrared region., Soref, Richard, Hendrickson Joshua R., and Sweet Julian , Opt Express, 2016 May 2, Volume 24, Issue 9, p.9369-82, (2016)

Distribution and mode of occurrence of uranium in bottom ash derived from high-germanium coals., Sun, Yinglong, Qi Guangxia, Lei Xuefei, Xu Hui, Li Lei, Yuan Chao, and Wang Yi , J Environ Sci (China), 2016 May, Volume 43, p.91-8, (2016)

All-Inorganic Germanium Nanocrystal Films by Cationic Ligand Exchange., Wheeler, Lance M., Nichols Asa W., Chernomordik Boris D., Anderson Nicholas C., Beard Matthew C., and Neale Nathan R. , Nano Lett, 2016 Mar 9, Volume 16, Issue 3, p.1949-54, (2016)

Flexible and free-standing ternary Cd2GeO4 nanowire/graphene oxide/CNT nanocomposite film with improved lithium-ion battery performance., Wang, Linlin, Zhang Xiaozhu, Shen Guozhen, Peng Xia, Zhang Min, and Xu Jingli , Nanotechnology, 2016 Mar 4, Volume 27, Issue 9, p.095602, (2016)

A Low-Leakage Epitaxial High-κ Gate Oxide for Germanium Metal-Oxide-Semiconductor Devices., Hu, Chengqing, McDaniel Martin D., Jiang Aiting, Posadas Agham, Demkov Alexander A., Ekerdt John G., and Yu Edward T. , ACS Appl Mater Interfaces, 2016 Mar 2, Volume 8, Issue 8, p.5416-23, (2016)