Streifenförmige Ablagerung des Reaktionsprodukts bei einer Gasphasenreaktion

Abstract

The gas-phase reaction of NH3 with HCl in a glas tube (length 150 cm, diameter 1–6 cm) leads to solid depositions of NH4Cl on the glaswall, with a regularpattem of stripes. The peculiar structure is also observed with other volatile reactants leading to a salt as the only solid product. Variations of tubediameters and temperatures indicate a broad validity of the observations.