Arsine – AsH3

This page arsine – or arsenic trihydride – ( AsH3 ), suitable detection tools –  Arsine gas detector – and respiratory protective equipment (gas mask or B with gas filter provides information about powered air breathing apparatus).

Arsine (AsH3) properties

Historically known to have been used as a chemical weapon during World War I arsine ( AsH3 ) – arsenic trihydride – also known as – is present in many industrial processes. It is used especially in the steel industry, in ferrous metal foundries (desulfurization systems cleaning), tin foundries, metal processing, electronics industry and boiler descaling.

  • CAS
  • 7784-42-1
  • TWA (8 hours)
  • 0,05 ppm
  • STEL (15 minutes)
  • 0,2 ppm
  • LEL
  • %5,1
  • IP
  • 9.89 eV
  • DENSITY/AIR
  • 2.7
  • FILTER/SCBA
  • B

Effects of Arsine on health

Colorless at ambient temperature Arsine ( AsH3 ), is odorless when newborn. When it comes into contact with air, it oxidizes and acquires a distinct garlic odor. Since it is heavier than air, it penetrates into organisms through the respiratory tract. When Arsine is inhaled It is highly toxic (R26) and is harmful to the aquatic environment because it dissolves easily in water. It is extremely flammable (R12) can form explosive mixtures between 5.1% and 78% by volume.

AsH3 solunum koruması (Arsine)

Sarımsak kokusuna rağmen, yalnızca bir Protection of AsH3 soluarcin gas detector (Arsine) can accurately measure concentrations of this gas. Even if it is explosive at 5.1% volume, a LEL measurement is useless as this gas is highly toxic. Therefore a ppm or ppb arsine detection system should be selected.

Arsine gas detector (AsH3)

Since arsine is very irritating to the eyes, it should not be used for short-term applications. full face mask or B with gas filter a more comfortable powered air purifying respirator It is highly recommended to install . If concentrations exceed 60 times the OEL, a self-contained breathing apparatus is required.