Removing mill scale from iron

Claim 1

A METHOD OR REMOVING MILL SCALE FROM AN IRON BODY CONTAINING THE SAME ON THE SURFACE THEREOF, COMPRISING THE STEPS OF APPLYING TO SAID SURFACE A COMPOSITION CONSISTING ESSENTIALLY OF A PASTE OF AN AQUEOUS SOLUTION OF A NON-REDUCING ACID ELECTROLYTE HAVING IN SAID SOLUTION IN SAID PASTE A DEGREE OF IONIZATION GREATER THAN 0.01 ION GRAMS PER LITER, SAID SOLUTION CONTAINING AT LEAST ONE OXIDIZING ANION HAVING IN SOLUTION IN SAID PASTE AN RH VALVE GREATER THAN 27, THE PH VALVE OF SAID SOLUTION IN IN SAID PASTE BEING NUMERICALLY LESS THAN 2.5 AT RH VALVES BETWEEN 27 AND 41 AND BEING NUMERICALLY UP TO 10 AT RH VALUES GREATER THAN 41, SAID SOLUTION BEING FREE OF ANY ACID CAPABLE OF REDUCING THE OXIDIZING ANIONS IN THE PASTE, AND OF AT LEAST ONE FINELY DIVIDED MINERAL SUBSTANCE INERT TO SAID SOLUTION AND BEING DISTRIBUTED THERETHROUGH AND DISPOSED THEREIN IN AN AMOUNT SUFFICIENT TO FORM SAID PASTE WITH SAID SOLUTION, SAID FINELY DIVIDED MINERAL SUBSTANCE ACTING AS A POROUS VEHICLE FOR SSID SOLUTION SO AS TO CAUSE CONTROLLED OXIDATION OF FERROUS IONS TO FERRIC IONS AND THE FORMATION OF GOETHITE WHICH RESULTS IN THE LOOSENING OF THE MILL SCALE; MAINTAINING SAID COMPOSITION ON SAID SURFACE UNTIL SAID OXIDIZING ANION IS SUBSTANTIALLY COMPLETELY REDUCED; AND REMOVING SAID COMPOSITION AFTER REDUCTION OF SAID ANION, AND THE LOSSENED MILL SCALE FROM SAID SURFACE.

Claim 2

A METHOD OR REMOVING MILL SCALE FROM AN IRON BODY CONTAINING THE SAME ON THE SURFACE THEREOF, COMPRISING THE STEPS OF APPLYING TO SAID SURFACE A COMPOSITION CONSISTING ESSENTIALLY OF A PASTE OF AN AQUEOUS SOLUTION OF A NON-REDUCING ACID ELECTROLYTE HAVING IN SAID SOLUTION IN SAID PASTE A DEGREE OF IONIZATION GREATER THAN 0.01 ION GRAMS PER LITER, SAID SOLUTION CONTAINING AT LEAST ONE OXIDIZING ANION HAVING IN SOLUTION IN SAID PASTE AN RH VALVE GREATER THAN 27, THE PH VALVE OF SAID SOLUTION IN IN SAID PASTE BEING NUMERICALLY LESS THAN 2.5 AT RH VALVES BETWEEN 27 AND 41 AND BEING NUMERICALLY UP TO 10 AT RH VALUES GREATER THAN 41, SAID SOLUTION BEING FREE OF ANY ACID CAPABLE OF REDUCING THE OXIDIZING ANIONS IN THE PASTE, AND OF AT LEAST ONE FINELY DIVIDED MINERAL SUBSTANCE INERT TO SAID SOLUTION AND BEING DISTRIBUTED THERETHROUGH AND DISPOSED THEREIN IN AN AMOUNT SUFFICIENT TO FORM SAID PASTE WITH SAID SOLUTION, SAID FINELY DIVIDED MINERAL SUBSTANCE ACTING AS A POROUS VEHICLE FOR SSID SOLUTION SO AS TO CAUSE CONTROLLED OXIDATION OF FERROUS IONS TO FERRIC IONS AND THE FORMATION OF GOETHITE WHICH RESULTS IN THE LOOSENING OF THE MILL SCALE; MAINTAINING SAID COMPOSITION ON SAID SURFACE UNTIL SAID OXIDIZING ANION IS SUBSTANTIALLY COMPLETELY REDUCED; AND REMOVING SAID COMPOSITION AFTER REDUCTION OF SAID ANION, AND THE LOSSENED MILL SCALE FROM SAID SURFACE.