1. ?????
?? ?? ?????? ?? ???? ??????? ?? 3?00 ??? 4?4? ????? ??? ???????? ?? ???????? ??? ????????????? ???? ???? ?? ???????? ??? ?????? ???? ??? ???? ????? ????????? ?? ???? ??????? ??????? ?????.

2. ???????
??????? ???? ???????? 0.1?
??? ????????????? (1 + 1)
???????? ????? ??? ????????????? 10? (?? ??? 1 + 1 ??? ????????????? ????)
???????? ????? ??? ????????????? 0.2?
????????? ???????? (?)
???? ???? ????? ??????????? ?????

3. ?????????
??? 0.5 ? ???? ?? ??? 250ml ???????? ???? ?? ???? ?? ?????? ?????? 60 ~ 80 ℃ ??????? 100ML ??????? 0. 1? 2 ????? ?? ???? ??????? ????????? (????? ?????? ??? ??? ?????? ?? ????? ?????)? ????? ?? ??? ????????????? (1+ 1) ??? ????? ??????? ?? ??????? ????????? 10? ???????? 10ML? ????? ??????? ????? ????? ??? ??? ???? ???? ??? ????? ???????? ?? ????? ?? ??? ??????? ????? ??????? ???????? ???? ?? 250ml ??????? ?????? ?????? ???? ?? 0.2 ?? ????? ???????? ???? ???? ??? ???? ?? ????? ???? ??? ????? ???? ???? ??? ??? ?? ???? ??????? ?? ????? ??????? ?????? ????? ??? ??????? ?? ?? 750 ~ 800 ℃ ??? ??? ??? ????? 30 ??? 45 ?????? ????? ?????.
???????? ?? ??? ???????? ???????? ??????? ??????? ???????.

4. ????? ??????
WO3 (?) = (W / G) × 100 + C

W - ??? WO3 (?)
G - ??? ?????? (?)
C - WO3 ????? ???????.

5. ??????????
??? ????? 1. ?????? ???????? ??????? ?? ???? ???? ???? ??? ??? ????? ?????? ???????? ??? ???? ?????? ??????.
2. ?????? 0.1? ?? ???????? ??????? ?????? ?????? ?? ??????? ?????? ??????? ??????????? ..
??? ???:
???????? ??????? ???? ????? ??? ???? ??? ???? ?? ????? ??????? ?? ????? ????? ??? ????????? ???????? ??????? ????? ??? PH ??????> 12 ?? ???? ??????? ??? ???? 250ml ??????? ?????? ??????? ?????? ???????? ?????? ??????? ???????? ??????? ????? ??????? ??????????? ??????.