МСОС Лекции с поиском и закладками
.pdfPa3AenlV
MeTOAbl OKl/1C/leHl/1R
1. OKMCneHHe MeTannaMH
1. OKMCneHMe MeTannaN -.
1.1. npoM3B0AHble xpoMa {VI)
• xpoM {VI) B KMCJIOH cpeAe OKHCJlffeT Meni1nbHble H MeTHneHOBble rpynnbl apeHOB AO
KHCnOT |
O |
OH |
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• 0KHC/leHMe <l>eHonos, fHAPOXMH0H0B, aHHnHH0B, Ha<l>Ta/lHHa, AO XHH0H0B
OH |
0 |
0 |
OH |
0 |
0 |
OKHCneHHe XP0MOM (VI) B KHC/lOH cpeAe MO>KeT 3aTparHBaTb KHCnOTHO-na6H/lbHble rpynnbl, no3T0My Ha OCH0Be Cr03 H Py pa3pa6oTaH PAA peareHT0B A/IA MfffK0r0 0KMC/leHMff
1.1. npoM3BOAHble xpoMa (VI)
• PeareHT KopH4>opra {KopM-WMHATa), PDC, Py2Cr207 Hcnonb3ytor AnA OKHCneHHR 1° cnHpTOB B anbAefHAbl "1 KHCnOTbl, 2° CnHpTOB B KeTOHbl; He 3aTparHeaer ABOMHble
CBR3H "1 He Bbl3b1Baer neperpynnHpOBOK
PDC |
Am |
- """""<IIO |
0 |
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---►► |
"\_ |
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DCM |
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70% H |
PDC |
DMFPDC• |
OH |
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◄DCM |
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85% |
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L\ TpoHeon |
L\ rpoHenneeas::i K-Ta |
HeAOCTaTKH xpoMa (VI): TOKCH"tHOCTb, KaHl,.\eporeHHOCTb, 3KOnorH"teCKaR onaCHOCTb, a
TaK>Ke npo6neMbl «work up» npH Mcnonb3083HMM KOMnneKCOB C Py
AnR ynpow,eHMR npOL\eAvP BblAeneHMR M 01.fMCTKM AJIR nony"leHMR KOMnneKCOB
Hcnonb3YtoT cononMMep Ps-ViPy |
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OH |
0 |
@-\\0(±)!JN-H |
Cr=O |
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R_.{,,,,\'I H |
DCM |
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e |
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R-{ |
. |
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o;e |
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0 |
0 H""- 4H |
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cf |
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- |
- |
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cf |
'c1 |
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HO/ |
1.2. npoH3BOAHble MapraH4a
•nepMaHraHaT 6apHR Ba(MnO4 h npHMeHRtoT AJIR 0KHC/leHHR cnHproe, MeTMllbHblX H
MeTH/leH0BblX rpynn apeH0B, anKeH0B
•MaHraHaT BaMnO4 MJUKHM 0KHC/lMTe/lb, npHMeHRIOT A/IA 0KHC/leHMR cnMpT0B 8
anbAerMAbl, AerHApHpoaaHMR, He 3arpar1o1eaer ABOMHble CBR3M
0
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0 |
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0 |
Ph |
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- |
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H |
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OH |
BaMn04 |
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H |
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OH |
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... |
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► |
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BaMn04 |
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OH |
DCM |
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DCM |
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H |
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90% |
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0 |
84% |
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l.,\1,1TpOHeOJ1 |
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l.,\1,npoHenanb |
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0 |
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0 |
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H |
BaMn04 |
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OH |
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DCM |
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N02 |
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N02 |
92% |
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