Diese Website erfordert, dass Javascript aktiviert ist. Bitte stellen Sie Ihren Browser in den Werkzeugen oder im Bereich Konfiguration enstprechend ein.

Element Search

Arsenic (33As74.92159)
[7440-38-2]

Select a form or compound to view products.

Elemental Form

Arsenic, a steel-gray, semimetallic solid, is very brittle, crystalline and poisonous. Elemental arsenic occurs in two solid modifications: the ordinary, stable, metallic-gray form and the yellow form. It oxidizes in air and, when heated, is rapidly oxidized to arsenous oxide (AS2O3) with a garlic odor. Arsenic is used as a doping agent in semiconductor materials.
Melting Point817°C(28atm)Boiling Point614°C(sublimes)
Density5.778g/cm3Specific Heat @ 25°C0.082cal/g°C
Heat of Fusion88.5k-cal/g-atomHeat of Sublimation88.5k-cal/g-atom
Atomic Volume131.1W/DFirst Ionization Energy231K-cal/g-mole
Electronegativity2.0Pauling'sCovalent Radius1.20Angstroms
Mohs Hardness @ 20°C3.5Linear Coefficient of Expansion @ 20°C4.7x10-6K-1
Electrical Resistivity @ 20°C33.3µΩ-cmCrystal StructureRhombohedral
Magnetic Susceptibility @ 20°C-5.5x10-6cgs