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Selenium particles

release time:2020-05-28 11:17Views:
Selenium Particles≥99.999% metals basis,Particle size:1-6mm
Product Name: Selenium
CAS: 7782-49-2 
Molecular formula: Se 
Molecular weight: 78.96 
EINECS  Number: 231-957-4 
MDL: MFCD00134 
It is hard and brittle, and the hexagonal transparent crystal is stable.Burning in the air emits a bright blue flame to form selenium dioxide.Insoluble in water and alcohol, soluble in carbon disulfide, concentrated sulfuric acid, nitric acid, alkali hydroxide or alkaline sulfide solution, insoluble in water and alcohol.Uses: Catalyst for Kjeldahl nitrogen determination, inorganic synthetic dehydrogenation agent.It is used for manufacturing semiconductor materials, photometers, photocells and other optical instruments, rectifiers, selenium photosensitive plates, copying toner cartridges, alloys, enamels and glass.Used for ICP-AES, AAS, AFS, ICP-MS, ion chromatography, etc.Standard solution for titration analysis.Calibration instruments and devices; evaluation methods; working standards; quality assurance / quality control; others. 
Melting point: 217-222 ° C
Boiling point: 685 ° C
Specific specific gravity: 4.81
Storage: Sealed.Sensitivity: sensitive to humidity

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