Selenium | CAS No. 7782-49-2

Selenium

Basic Information

CAS Number

7782-49-2

Molecular Formula

Se

Molecular Weight

78.96 g/mol

EINECS

231-957-4

AD

Basic Physical Properties

Physical State

White to creamy white

Melting Point

217 °C

Boiling Point

684.9 °C

Density

4.81 g/mL at 25 °C

Water Solubility

Insoluble

Solubility

H2O: soluble

Vapor Pressure

<1 Pa (20 °C)

InChI

InChI=1S/Se

InChIKey

BUGBHKTXTAQXES-UHFFFAOYSA-N

LogP

-0.3808

Topological Polar Surface Area

0.0 Ų

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

0

Safety Information

View Safety Information

GHS Hazard Pictograms

H301H301
H331H331
H373H373
H413

Hazard Statement

H301 Toxic if swallowed
Acute toxicity, oral
H331 Toxic if inhaled
Acute toxicity, inhalation
H373 Causes damage to organs through prolonged or repeated exposure
Specific target organ toxicity, repeated exposure
H413 May cause long lasting harmful effects to aquatic life
Hazardous to the aquatic environment, long-term hazard

Hazard Class

Class 9 Class 9

Stability

Stable. Incompatible with strong acids, strong oxidizing agents and most common metals. Combustible.

Sensitiveness

Sensitive to moisture

Synonyms & References

English

  • UNII-H6241UJ22B
  • Caswell No. 732
  • Selenium base
  • CCRIS 4250
  • Selenium, powder, 250 max. part. size (micron), weight 50 g, purity 99.95%
  • selenium (iv) hydride
  • Vandex
  • CHEBI:27568
  • DTXSID9021261
  • HYDROGEN SELENIDE [MI]
  • Selenium hydride (SeH2)
  • Selenium Standard: Se @ 10000 microg/mL in 5% HNO3
  • Selenium, shots, 99.99999% (7N), diameter 2-4 mm
  • Selenium, p.a., 99.5%
  • Selenium (Powder)
  • elenium, elemental; Vandex;
  • Selenium Standard: Se @ 10 microg/mL in 2% HNO3
  • Selenium elemental
  • CI 77805
  • Selenium powder [UN2658] [Keep away from food]
  • Selenium hydride
  • HSDB 6909
  • H6241UJ22B
  • Selenium Nanopowder in aq. media
  • Selenium, pellets, <5 mm particle size, >=99.999% trace metals basis
  • DB11135
  • FT-0701285
  • Hydrogen selenide (H2Se)
  • C01529
  • selenio
  • Selenium anhydride

MDL Number

MFCD00134090

EC Number

231-957-4

Customs Code

28049090

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