... walnut, nylon slice, oxalic acid, polymethacrylate, polyvinyl alcohol, potash(potassium carbonate), potassium sulphate, potassium solution residue, potassium dichromate, porassium chloride, mono ... , halite, reclaimed rubber, silver nitrate, sodium acetate, sodium bisulphate, sodium carbonate, sodium chlorate, sodium formate, sodium grape acid, sodium metaborate, sodium ...