???? ?????? ??????? Paratungstate
???? ??????? ???????? ???????? ???, APT ???? ???? ??? ???? ???? ???????? ?????? ?? ???? ??????? ??? ??????? ??????. ?????, ???? ???? ???? APT ?? flowability ???, ???? ??????? ?????? ?? ??? ???? calcit APT ???? ?????? ????, ???? ??????? ???? ????? ???? ?????? ????, ????? ??? ??? ???, ?????? ?????? ?? ????? ????? ??? ????? ???????. ??? ???? ????? ????? ????? ??? ???, ????? ?? ??? ??????? ?? ????? ????? ??? 90%, ????? ?????? ?? ??? ??????? ?? ?????? ?? APT polycrystalline ?????? ??? ??? ?? 70%. ?????, ???? ???? APT ???? ????? ??? ???? ???? ????? ?????? ????? ??????? ???????.
?????? ??????:
???? ?????? ??????? ????? ??? 2.72 (?? W18O49), ??? ??? ??? ?? ?????? ???????, ????? VTO, ??? ???? ????? ???? ????, ??? ???? ???? ??? ?? ???? ????.
??????? paratungstate ??? ???? ????, ????? ?????? ?????, ???? ??? ????? ?? ?????? ?? ??????????? ???? ????? ?? trioxide ??????? ?? ???? ??????? ?????? ???? ??????? ????.
????? Tungstic ?????? ?????? ????????? ?? ??????? trioxide, WO3. ????? ?????? ?????, ?monohydrate, ??? WO3. h2o, dihydrate ?? 3.2 h2o ???? ??. . ???? ???? ????? ?? WO3 H2O ????? ????? ?? octahedrally ????? WO5 (H2O) ?????? ??? 4 ???????? ???????.
0.6 ??????? ??????? ??????, ?????? ???????, ????? ?? ???? ????? ??????, ????? ????????? ????, ?????? ?????? ?? 0.6-1.0 g/cm3.