Arsenic, Elemental

CAS RN:7440-38-2

Reactivities / Incompatibilities

Arsine is formed when any inorganic arsenic bearing material is brought in contact with zinc and sulfuric acid.

Arsine may be accidentally formed by the reaction of arsenic impurities in commercial acids stored in metal tanks. ...

... The /bromine azide/ liquid explodes on contact with arsenic. ...

... /Rubidium acetylide/ ignites with arsenic. ...

Incandescence is caused by contact with ... arsenic /and bromine trifluoride/.

The finely powdered element /arsenic/ inflames in gaseous chlorine or liquid chlorine.

Bromine pentafluoride ... /contact/ with ... /arsenic/ at ambient or slightly elevated temperatures is violent, ignition often occurring. ...

Chlorine trifluoride is a hypergolic oxidizer with recognized fuels, and contact with arsenic at ambient or slightly elevated temperatures is violent, ignition often occurring.

Palladium or zinc & arsenic react on heating with evolution of heat & light, & platinum with vivid incandescence.

... /Arsenic/ will initiate the violent and often explosive decomposition of nitrogen trichloride.

A finely divided mixture with excess nitrate ignited when shaken out on to paper.

The heat sensitivity of dichlorine oxide may explain the explosions which occur on contact of arsenic with this powerful oxidant.

... Readily oxidizable materials (arsenic) form explosive mixtures /with sodium peroxide/.

An explosive variety (or cmpd) of arsenic was produced as surface layer on exposed iron surface of corroded lead-lined vessel which contained 35% sulfuric acid with high arsenic content.

... /Arsenic/ explodes on grinding in a mortar with the solid /potassium permanganate/. ...

Flammable in the form of dust when exposed to heat or flame or by chemical reaction with powerful oxidizers such as bromates, chlorates, iodates, peroxides, lithium, NCl3, KNO3, KMnO4, Rb2C2, AgNO4, NOCl, IF5, CrO3, CIF3, ClO, BrF3, BrF5, BrN3, RbC3BCH, CsC3BCH. Slightly explosive in the form of dust when exposed to flame. When heated or on contact with acid or acid fumes, it emits highly toxic fumes; can react vigorously on contact with oxidizing materials. Incompatible with bromine azide, dirubidium acetylide, halogens, palladium, zinc, platinum, NCl3, AgNO3, CrO3 Na2O2, hexafluoroisopropylideneamino lithium.

... When water soln of arsenicals are in contact with active metals such as arsenic, iron, aluminum, zinc, ... Highly toxic fumes of arsenic /including arsine are released/. /arsenic cmpd/

Strong oxidizers, bromide azide [Note: Hydrogen gas can react with inorganic arsenic to form the highly toxic gas arsine.] /Arsenic (inorganic compounds, as As)/

Find more information on this substance at: Hazardous Substances Data Bank , TOXMAP , TOXNET , PubMed