???? ?????? ????? ?????? ????????? Metatungstate?

????? ??? ?????? ?????? metatungstate ????????? ?? ?? ???? ?????? (H2WO4) ?? ???????? ???? (NH4 ? OH)? ????? ??? ????? ????? ???????? ??????? ???????? ?? ??????? ?????? ???????? ??? ???? ????? ??????????? ?????? ??? 8? ??? ????? ??? ?????? ????? ?? ????? ?? ??? ???? ????? ??????????? ??? 2-4 ?? ??? ??????? ??????? ??????? ?? ??????? ??? ????? ???? ???????? ??????? ?? 1.5 ??? 02:00? ???? ??????? ???????? ? ?????. ??? ????? ????????? ?? ??????? ?????? ????? ?? ??? ????? ????? ???????? ???? ????? ?? 80 ℃ ???? ?????? ??? ?????? AMT.






