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BZ ????

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Title: http://www.bcec.sjtu.edu.cn/expchem/reformation.asp Author: tc Last modified by: ZY Created Date: 4/24/2006 11:26:52 AM Document presentation format – PowerPoint PPT presentation

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Title: BZ ????


1
BZ ????
2
.????
  • ??B-Z??????????
  • ???????????????????,??????????????
  • ??????????????????????

3
????
  • ?????????????????????????????????BZ??????????
  • ??????????????????????,??????????????????
    ,?????????????.??,??????????? ???? ???????
  • ????? ?????????????????????? ,????????.???????????
    ?? ????????,???????????????????

4
BZ??????
  • ?? ????????????????????????(???)????????,?????????
    ????
  • ????? ?? ???? 1959? ??????? (Belousov)????,???????
    (Zhabotinsky)?????????.???????????????? ,????
    HBrOs???????????,????????????????,?????????
    BZ?????

5
BZ????
  • BZ????????????????????????????.??
    BZ???????????,?????????????? Fiel,Koros? Noyes?
    ???????????????????????????????? ,?? FKN???

6
  • ??? 3??????

7
  • ?? A??? Br-,????????? HBrO2,HBrO??????
  • ?? B??? ????? ,? Br-????????,HBrO2??? (3)?(4)????
    ,???????? ,???? ,Ce3???? Ce4,HBrO2???????(5)????
  • ?? C???????? BrCH(OOH)2,? Ce4???? Br-,? Ce4???
    Ce3 ?

8
  • ?? C????????? ,????.A? B,????? ????? ,????????,??
    C ???,?????????? ,???? Br-? Ce3,???????,?????????
  • ????????

9
BZ??????
  • ?????????.???????????? ,????????????????,??
    ??????????,??????,?????????
  • ???????? ??????,?????????? ,????????,???????
    HBrO2????????

10
  • ???????????,????????
  • ????,???????????????????A?B,?Br-????????Br-cri
    t???A??,?Br-??Br-crit???B???????Br-??????,??
    ???A?B??,??B?A??????

11
?????
  • ???100mL1??????1??????1?BZ?????????????????21
    7?????(?1mol? L-1?????)
  • ???(A.R.)???(G.R.)????(A.R.)??(A.R.)

12
????
  1. ??BZ??????????????,????????,???????25?????????????
    ?????????????
  2. ????????BZ??,???????(?????1800?,?????1300??,?????9
    50??)???????,????25??

13
  • ?????,???,??,???????
  • ????????,????????????,??????????1.0mol/L????5ml,??
    ?0.2mol/L????12.5ml,???1.5mol/L????20ml???

14
  • ??5min?????????,??????BZ???????????????????0.04mol
    /L??????3ml?,?OK??????
  • ??????,???4????????,?????,????????????????????????
    ??

15
  • ?????????????????????????30??35??40??45??50??????4
    -6??
  • ???????????,????????,??????????????

16
????
  • ??????????????
  • 217??????1mol?L-1H2SO4????
  • ??0.004mol?L-1????????,????0.20mol?L-1????????????
    ??????
  • ??????????????????,???????????????
  • ??????????????,????,?????????????????

17
????
  • ??????????????????
  • ???BZ???????????????????
  • ??????????????????????

18
????
  • ???,?????M,??,?????????,1999.
  • I.???? ,G.????,?????????M,??,?????,1986.
  • ??? ,???,???,???-BrO3-Mn2-H2SO4-?????????,??????,
    1994,(1)87 .
  • ???,??????(?)-??????M,??,???????,2004.
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