?????????? ???? ???, ????? ?? ???? ??. ?? ????????? ???????? ????????? ?????? ???????? ??????? ??? ??, ?????? ??????? ???? ???????????? ?????? ???? ??????? ????????? ??????????? ???? ??????, ??? ???? ????? ?????????????????? ???????? ??????????? ???? ???. ????????? ????? ??????? ???? ???? 600 ??? ???? ?????? ??? ??, ????? ?? ???? ???? ?????? ????? ??? ??? ????? ??????? ????? ???, ???? ???? ???-???? ??????? ???????? ??? ??.

?????????? ????? ????? ??? ???????? ?????? ?????? ????? ????????? ??? ??, ??? ????? ??????????? ?????? ??? ???????? ??????? ???? ?????, ???? ?? ?? ???? ??????? ??????? ???? ???? ????. ????, ???????? ??????????? ?????? ???? ????? ???? ????, ?????? ????????? ??????? ????? ???? ???? ???? ??????????? ???? ?????? ????????? ????????? ????? ????. ??????, ???????? ??????? ???? ???? ??????? ????? ???, ????? ????? ??????????? ??? ?????? ????? ????????? ??? ??.

??????????? ???????? ????? C12H19Cl3O8 ??, ????? ???? ?????, ???? ??????? ??? ??????, ???? ??? pH ?????? ???? ????????? ?????? ??. ?? ????, ??????? ??? ????????? ??? ? ??????? ??. ?? 1976 ??? ???? ???? ????? ??? ???? ??????????? ?????? ??????? ???? ??????????? ?????? ???? ??? ?????? ??????? ?????? ????, ??? 1988 ??? ??????? ????? ??????? ?????? ????. ?? ???? ????? ??????????? ?? ??.