12025-34-2 Usage
Description
Germanium disulfide (GeS2) or germanium (IV) sulfide is a white high melting crystalline solid. It is a 3-dimensional polymer.1 It can be obtained by the reaction between hydrogen sulfide and germanium tetrachloride in a concentrated hydrochloric acid solution. It is used as a semiconductor. It is also used in photo optic applications, e.g. in chalcogenide glasses for second harmonic generation.2
References
https://en.wikipedia.org/wiki/Germanium_disulfide
M. Guignard, V. Nazabal, F. Smektala, J. L. Adam, O. Bohnke, C. Duverger, A. Moreac, H. Zeghlache, A. Kudlinski, G. Martinelli, Y. Quiquempois, Chalcogenide glasses based on germanium disulfide for second harmonic generation, Advanced Functional Materials, 2007, vol. 17, pp. 3284-3294
Chemical Properties
black crystal(s); can be prepared by reacting GeO2 and sulfur [KIR78] [STR93]
Check Digit Verification of cas no
The CAS Registry Mumber 12025-34-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,0,2 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 12025-34:
(7*1)+(6*2)+(5*0)+(4*2)+(3*5)+(2*3)+(1*4)=52
52 % 10 = 2
So 12025-34-2 is a valid CAS Registry Number.
InChI:InChI=1/GeS2/c2-1-3
