Basic information Introduction Chemical Properties Physical Properties Application Production Reactions Toxicity Safety Related Supplier
Selenium Structure

Selenium

Chemical Properties

Melting point 217 °C (lit.)
Boiling point 684.9 °C (lit.)
Density  4.81 g/mL at 25 °C (lit.)
vapor pressure  <1 Pa (20 °C)
storage temp.  no restrictions.
solubility  H2O: soluble
form  powder
Specific Gravity 4.81
color  White to creamy white
Resistivity 1.2 μΩ-cm, 0°C
Water Solubility  Insoluble
Merck  13,8505
Exposure limits TLV-TWA 0.2 mg(Se)/m3 (ACGIH, MSHA, and OSHA); IDLH 100 mg/m3.
Dielectric constant 6.1(Ambient)
Stability Stable. Incompatible with strong acids, strong oxidizing agents and most common metals. Combustible.
InChIKey SPVXKVOXSXTJOY-UHFFFAOYSA-N
CAS DataBase Reference 7782-49-2(CAS DataBase Reference)
IARC 3 (Vol. 9, Sup 7) 1987
NIST Chemistry Reference Selenium atom(7782-49-2)
EPA Substance Registry System Selenium (7782-49-2)

Safety Information

Hazard Codes  T
Risk Statements  36/38-53-33-23/25
Safety Statements  26-61-45-28-20/21-28A
RIDADR  UN 3440 6.1/PG 3
WGK Germany  2
RTECS  VS7700000
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  28049090
Hazardous Substances Data 7782-49-2(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 6700 mg/kg
IDLA 1 mg Se/m3

MSDS

Usage And Synthesis

Selenium Supplier

Selenium manufacturers