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????? ??? tungstate ???? ???? molybdate ??? ????? ??????? ?????????? ???????? ???? ??????, ?? ??? ?????? ?????, ??? ???? ??????? ? ??????? ???? ????? ????? ?? ⅥB, ?? ??? ??? ???? ????? ?????? ????????? ??????? , ??? ?? ???? ??????.

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????? ????? Na2WO4 Na2Mo4
??? ??????? 293.82 g·mol?1 205.92 (Anhydrous) g·mol?1
241.95 (????????) g·mol?1
????????? 4.179 g/cm3
3.23 g/cm3(????????)		 3.78 g/cm3, ????
???? ?????? ????? ??? ???? ????
????? ???? 698°C 687 °C
???? CAS 13472-45-2
10213-10-2(?????? ???????? ????????)		 7631-95-0
10102-40-6 (???? ???????? ????????)
?????? (???) 74.2 g/100 mL 84 g/100 ml (100 °C)
?????? (?????? ?????) ??? ???? ???????, ???? ?????? ???? ??????

????? ?? ??? ????

???? ??????? ???? ???? ????? ????, ?? ???? ?????? ????? ????????:
Na2WO4+2HCl—Boiling→H2WO4↓(Yellow)+2NaCl
Na2WO4+2HCl+H2O→H2WO4?H2O↓(White)+2NaCl
???? ?????? ????? ???? ???? ? ??????? ???????? ??? ??? ?? ???? ???? ?????? ???? ???? ????? ??????? ????, ?????? ????? tetrathiocarbonate ???? tungstate.

???? molybdate ???? ?? ????? ????? ?????? ????? ????????:
Na2MoO4+2HCl→H2MoO4↓+2NaCl

?????? ??????? ????????? molybdate ?????

???? ??????

???? tungstate ??? ???? ??? ?? ??????? ???? ?????, ????? ???????? ????? ???????; ???? ?? ????, ??? ? ????????, ??? ?? ???? ?? ?? ???????? ????? ???? ect. ??? ??, ??? ???? ?????? ???? ??????? ?? ???, ????? ????.

???? molybdate ???? ????? ???? ??????? ????, ???? ???? ?????, ???? ????? ???? ??? ?? ???? ??????; ??????????, ????? ? ???? ?????? ??????? ???????.

?? ?? ?? ????? ??????? ????, ?? ???? ????? ????? ????"?: sales@chinatungsten.com?? ??????:+86 592 5129696.

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