| 摘要 |
STORAGE STABLE AQUEOUS ACIDIC SOLUTIONS, OFTEN HAVING A PH OF UP TO 1CONTAINING AN ESTER PERACID AND/OR AN ACID PERACID CAN BE OBTAINED BY REACTING A DIESTER SATISFYING THE GENERAL FORMULA R1-O-CO-R2-CO-O-R3 IN WHICH R1 AND R3 EACH REPRESENTS A ALKYL GROUP CONTAINING FROM 1 TO 4 CARBON ATOMS WHICH MAY THE SAME OR DIFFERENT AND R2 REPRESENTS AN ALIPHATIC ALKYLENE GROUP OPTIONALLY UNSATURATED WHICH MAY BE LINEAR OR BRANCHED CONTAINING FROM 2 TO 6 CARBON ATOMS WITH AQUEOUS HYDROGEN PEROXIDE IN THE PRESENCE OF AN ACID, SUCH AS SULPHURIC ACID AND PERMITTING THE COMPOSITIONS TO PROGRESS TOWARDS EQUILIBRIUM CONCENTRATIONS. BY STARTING WITH A DIESTER, PERHYDROLYSIS GENERATES AN ESTER PERACID WHICH IS A PARTICULARLY EFFECTIVE PERACID. THE PROCESS CAN BE CONTROLLED TO PRODUCE SOLUTIONS CONTAINING A HIGH PERACID CONTENT AND WITHIN A WIDE RANGE OF RATIOS OF ESTER PERACID TO ACID PERACID. |
