12233-73-7

Basic information

• Product Name: dodecabismuth germanium icosaoxide
• Synonyms: dodecabismuth germanium icosaoxide
• CAS NO: 12233-73-7
• Molecular Formula: Bi12GeO20
• Molecular Weight: 2900.39256
• EINECS: 235-458-2
• Mol File: 12233-73-7.mol
• Article Data: 2

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: dodecabismuth germanium icosaoxide(CAS DataBase Reference)
• NIST Chemistry Reference: dodecabismuth germanium icosaoxide(12233-73-7)
• EPA Substance Registry System: dodecabismuth germanium icosaoxide(12233-73-7)

Safety Data

• Hazardous Substances Data: 12233-73-7(Hazardous Substances Data)

Usage

InChI:InChI=1/2Bi.2Ge.7O/q2*+3;2*+4;7*-2

Upstream product

• 46140-16-3 bismuth(III) nitrate 

Relevant articles and documents

Positron-annihilation monitoring of reduction processes in conducting glasses

Depth-resolved, Doppler-broadening positron spectroscopy has been used to study structural properties of semiconducting glasses. Bismuth- and lead-doped, silica and germanium glasses with five different compositions were studied. Conducting surface layers in these glasses were obtained by reduction in hydrogen atmosphere. Depth scanning with a slow-positron beam allows to follow the temperature and time evolution of layers modified during reduction processes. However, while reduction processes in inner layers (below a few tens of nm) are clearly seen in changes of the Doppler-broadened positron- annihilation line, the near-to-surface changes are more complex and not fully understood. We prove that the positron spectroscopy can help in optimising technological questions of reduction processes.