DNF神秘人4月18日位置 DNF4.18神秘人在哪刷新图
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???????(4+);?????? ??????????
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12014-56-1 ![]() | |
ChemSpider | 21171175 |
EC number | 234-599-7 |
InChI
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????? -3D ????????? | Image |
??????? | 10219931 |
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UNII | 20GT4M7CWG |
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Ce(OH)4 | |
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???????? ????? ??????????? ??????? ????????????? ??????? ?????? ????????? ???????? ??????? ????? ?????? ???????? (25°C, 100kPa) ?????????. | |
???????(IV) ?????????? (Cerium(IV) hydroxide) ?????? Ce(OH)4 ???? ??????????? ?????????????? ??????????????? ??? ???? ????????? ???????????. ?????? ?????????? ???? ????????? ?????????? ????????????????. ?????? ????????? ??????? ?????????? ???????(IV) ?????????? ????????? ???????. ????? ??????????????? ???? ??????????? ???????.[1]
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[????]??????? (III) ??????????? ????????? ??????????? ???????? ??????????? ?????? ????????? ????????????? ?????? ?????????? ???????? ????????????? ???????????????. ????????? ??????? ???????????:[2]
- Ce2(CO3)3 + 6 CH3COOH → 2 Ce(CH3COO)3 + 3 CO2↑ + 3 H2O
- 2 Ce(CH3COO)3 + 3 H2O2 + 4 H2O → 2 Ce(OH)3(OOH) + 6 CH3COOH
- CH3COOH + NaOH → CH3COONa + H2O
- 2 Ce(OH)3(OOH) → 2 Ce(OH)4↓ + O2↑.
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- Ce2(CO3)3 + 6 CH3COOH + 3 H2O2 + 6 NaOH —343 K→ 2 Ce(OH)4 + 6 CH3COONa + O2↑ + 3 CO2↑ + 5 H2O
???????(III) ?????????? ?????????????? ????????????????? ???????? ?????? ??????????:[3]
- 2 Ce(NO3)3 + 3 H2O2 + 6 NH3·H2O → 2 Ce(OH)3(OOH)↓ + 6 NH4NO3 + 2 H2O
- Ce(OH)3(OOH) —Δ→ 2 Ce(OH)4↓ + O2↑
Ce4+ ???????? ??????? ?????????? ?????? ?????????? ?????????? ???????? ?????????? ??????? ??????? (IV) ?????????? ????????????. CeO2·xH2O, (x = 0.5–2) ?? ??? ????????? ??????????????? ????????????? ?????????? ??? ?????????????. NaOH ??? ?????? Ce4+ ??????? ??????? ????????? ??????????? Ce(OH)4 ???????????.[1]