49, Indium (In)
indigoblau |
Säure-Base-Verhalten:
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Säure/Base-Verhalten der Indium-Oxide: |
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Reaktionen mit: |
HF
100% |
H2SO4
conc. |
HCl
20% |
CH3COOH
25% |
H2O |
NH3
25% |
NaOH 10%
kalt |
NaOH 50%
heiß |
NaOH liq.
400°C |
| In2O3 |
InF3↓ |
In2(SO4)3 |
InCl3 |
(CH3COO)3In |
In(OH)3↓ |
In(OH)3↓ |
In(OH)3↓ |
In(OH)3↓ |
Na3In(OH)6 |
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| Legende: |
Lösung |
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Unlöslich |
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sauer → neutral → alkalisch |
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pKS-Werte von Säure-Base-Paaren (HA + H2O ↔ H3O+ + A-) : |
| Säurename |
Formel |
 pKS-Wert |
Basenname |
Formel |
pKB-Wert |
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| Indium(I)-Ion |
In+ |
11.83 |
Indium(I)hydroxid |
InOH |
2.17 |
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| Indium(III)-Ion |
In3+ |
3.54 |
Hydroxo-Indium(III)-Ion |
In(OH)2+ |
10.46 |
| Hydroxo-Indium(III)-Ion |
In(OH)2+ |
4.28 |
Dihydroxo-Indium(III)-Ion |
In(OH)2+ |
9.72 |
| Dihydroxo-Indium(III)-Ion |
In(OH)2+ |
5.16 |
Indium(III)hydroxid |
In(OH)3 |
8.84 |
| Indium(III)hydroxid |
In(OH)3 |
9.67 |
Tetrahydroxo-Indat(III)-Ion |
In(OH)4- |
4.33 |
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