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