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???????? ??? ???? ??? ??? ???? ??????? ???? ??? ?? ??? ???? ????? ??? '?? ????? ????? ??, ??? ???? ????? ?? ??????? ??? ??????? ??? ?????? ?? ??????, ?????? ?? ???? ????? ???? ?????-?????? ?? ???? ???? ?????? ???????, ??????? ???????? ????? ?? ??????? ?? ?????? ??, ?? ?????? ???? ?????? ??? ??? ?? ?? ??? ??? ???? ??? ???? ???????? ?? ????? ??? ??? ??????? ???? ?? ???? ???????? ???? ???? ?????? ??? ?? ??? ?????, ???????? ?? ??? '?? ????? ???? ???? ?????, ???? ???-??? ??????? ???? ???? ??? ???? ????? ????? ???

???????? ?? ?????? ??????? C12H19Cl3O8 ??, ??? ???? ??? ?????, ??? ??????, ??? ??????, ???? ??? pH ?????? ????? ?????? ???? ???????????? ??? ?? ????, ??????? ??? ?????? ???? ???? ?????? ???????? ??? ????? ???? ??? ????? ??? ???? ?????????? ????? 1976 ???? ????? ??? '?? ????? ??? ?????? ???? ??? ??, ??? 1988 ???? ?????? ???? ???? ???? ??? ??? ?? ?? ??? ????? ??????? ?????? ??? ???