{TAIL ~ The method} 1, wherein the exothermically heated potassium acetate solution is applied at a temperature above {HEAD ~ 50° C} 
{ TAIL ~ The method } 1 , wherein the exothermically heated potassium acetate solution is applied at a temperature above { HEAD ~ 50 ° C }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD