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Selenium, black, powder

- Se
- M = 78,96 g/mol
- CAS [7782-49-2]
- EINECS-No.: 231-957-4
- Solub. in water: (20 ºC): slightly soluble
- Melting point: 217 ºC
- Boiling point: 685 ºC
- Vapour pressure: (20 ºC) 0,001 hPa
- LD 50 (oral, rat): 360 mg/kg
- EC-Index-No.: 034-001-00-2
- ADR: 6.1 T5 III UN 3283
- IMDG: 6.1 III UN 3283
- IATA/ICAO: 6.1 III UN 3283
- GHS-signal word: Danger
- GHS-H sentences: H301 - H331 - H373 - H413
- GHS-P sentences: P260 - P301+P310 - P321 - P311 - P405 - P501a
- Tariff number: 2804 90 00 00
- Applications: analytical chemistry, laboratory reagent, catalyst (for determination of: nitrogen), synthesis of organic products, photography, pigment, in the electronic industry, manufacturing of photoelectric cells, in the rubber industry.

SPECIFICATIONS
assay (gravimetric): min. 99 %
copper (Cu): max. 0,005 %
iron (Fe): max. 0,05 %
lead (Pb): max. 0,05 %
residue on ignition: max. 0,5 %
grain size (> 150 µm): max. 5 %