in ammonia byproducts: NH3;

in neat (no solvent) byproducts: KOH, H2; the solid precursor KAsH2 (prepared from 99.995percent K and 99.9999percent As) is contained in a hermetically sealed stainless steel reaction vessel outfitted with mixing device, low pressure arsine gas is generated through controlled addn. of water;; AsH3 is pumped through a 3A molecular sieve trap and an arsine purifier cartridge to reduce water and oxygen;;