70, Ytterbium (Yb)
Grube Ytterby (Schweden) |
Säure-Base-Verhalten:
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Säure/Base-Verhalten der Ytterbium-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 |
Yb2O3 |
YbF3↓ |
Yb2(SO4)3 |
YbCl3 |
(CH3COO)3Yb |
Yb(OH)3↓ |
Yb(OH)3↓ |
Yb(OH)3↓ |
NaYb(OH)4 |
Na3Yb(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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Ytterbium(II)-Ion |
Yb2+ |
12.1 |
Hydroxo-Ytterbium(II)-Ion |
Yb(OH)+ |
1.9 |
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Ytterbium(III)-Ion |
Yb3+ |
7.65 |
Hydroxo-Ytterbium(III)-Ion |
Yb(OH)2+ |
6.35 |
Hydroxo-Ytterbium(III)-Ion |
Yb(OH)2+ |
8.05 |
Dihydroxo-Ytterbium(III)-Ion |
Yb(OH)2+ |
5.95 |
Dihydroxo-Ytterbium(III)-Ion |
Yb(OH)2+ |
8.30 |
Ytterbium(III)hydroxid |
Yb(OH)3 |
5.7 |
Ytterbium(III)hydroxid |
Yb(OH)3 |
8.70 |
Tetrahydroxo-Ytterbiat(III)-Ion |
Yb(OH)4- |
5.3 |
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