Explanatory notes
… (platinum, iron, chromium, bismuth or manganese oxides, etc.). Alternatively, nitrogen and oxygen may be directly … manufacture of nitrates (of silver, mercury, lead, copper, etc.), organic dyes, explosives (nitroglycerol, collodion … cotton, trinitrotoluene, picric acid, mercury fulminate, etc.); the pickling of metals (especially for pickling cast …