realgar

realgar Chemische Eigenschaften,Einsatz,Produktion Methoden

• Physikalische Eigenschaften

  Habit: prismatic, massive, granular, druse, earthy.
  Color: aurora red, orange yellow, or dark red.
  Diaphaneity: translucent to opaque.
  Luster: resinous, glassy, adamantine.
  Streak: orange red.
  Cleavage: [010], [001], and [100].
  Twinning: (100).
  Fracture: brittle, sectile.
  Chemical: dissolved by HNO3, evolved a garlic odor when calcinated and gives sublimated As2O3 deposit on cold wall.
  Electrical resistivity 1 to 150 mΩ.m.
  Occurrence: hydrothermal with orpiment. Marcasite, and stibine. Sedimentary rocks.

• Definition

  The mineral form of arsenic(II) sulfide, As₄S₄. It is bright red in color and used as a pigment, in tanning, and in pyrotechnics.

• Definition

  realgar: A red mineral form of arsenic(II) sulphide, As²S².

realgar Upstream-Materialien And Downstream Produkte