COMPOSITION CONSISTING OF A CAUSTIC ALKALI OF THE GROUP CONSISTING OF SODIUM, POTASSIUM OR CALCIUM HYDROXIDE, CONTAINING A SUBSTANTIAL BUT MINOR PROPORTION OF AN OXIDIZING AGENT OF THE GROUP CONSISTING OF THE ALKALI METAL AND ALKALINE EARTH CHLORATES, PEROXIDES, NITRATES, DICHROMATES, MANGANATES, AND PERMANGANATES, USED IN THE FORM OF A FUSED BATH, FOR MODIFYING THE CHARACTER OF DENSE FIRMLY ADHERENT OXIDE ON THE SURFACE OF METALS PREPARATORY TO REMOVAL THEREOF BY A DIP INTO A BATH OF DILUTE INORGANIC ACID

'acid':80 'adher':60 'agent':26 'alkali':6,33 'alkalin':36 'bath':52,76 'calcium':15 'caustic':5 'charact':56 'chlorat':38 'composit':1 'consist':2,10,30 'contain':17 'dens':58 'dichrom':41 'dilut':78 'dip':73 'earth':37 'firm':59 'form':48 'fuse':51 'group':9,29 'hydroxid':16 'inorgan':79 'mangan':42 'metal':34,66 'minor':21 'modifi':54 'nitrat':40 'oxid':25,61 'permangan':44 'peroxid':39 'potassium':13 'preparatori':67 'proport':22 'remov':69 'sodium':12 'substanti':19 'surfac':64 'thereof':70 'use':45

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