Potentiometric titration Normal Hydrogen Electrode Saturated Calomel electrode Metallic Indicator Electrodes Glass Indicator Electrodes

1. Potentiometric
Amit Z Chaudhari
Titrations

2. 2
I n t r o
※ Vogel ※ Patnaik ※ Patnaik ※

3. 3
P r i n c i p l e
※ Vogel ※ Patnaik ※ Patnaik ※

4. 4
P r i n c i p l e
※ Skoog ※
P o t e n t i o m e t r i c C e l l

5. ※ Vogel ※ Skoog ※ Patnaik ※
P r i n c i p l e
5

6. 6
※ Vogel ※ Patnaik ※ Patnaik ※
R e f e r e n c e E l e c t r o d e

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1. Standard hydrogen electrode (SHE)/
Normal Hydrogen Electrode
(NHE)
Synonym - The primary reference electrode.
R e f e r e n c e E l e c t r o d e
※ Kasture ※

8. 8
※ Vogel ※ Skoog ※ Ksture ※
R e f e r e n c e E l e c t r o d e

9. 9
1. Standard hydrogen electrode (SHE)
※ Vogel ※ Kasture ※
R e f e r e n c e E l e c t r o d e

10. 1
1. Standard hydrogen electrode (SHE)
※ Vogel ※ Kasture ※
R e f e r e n c e E l e c t r o d e

11. 1
2. Calomel electrode / Saturated Calomel electrode (SCE)
※ Vogel ※ Patnaik ※ Patnaik ※
R e f e r e n c e E l e c t r o d e

12. 1
2. Calomel electrode / Saturated Calomel electrode (SCE)
※ Vogel ※ Patnaik ※ Patnaik ※
R e f e r e n c e E l e c t r o d e

13. 1
2. Calomel electrode
※ Vogel ※ Patnaik ※ Patnaik ※
R e f e r e n c e E l e c t r o d e

14. 1
2. Calomel electrode
※ Vogel ※ Patnaik ※ Patnaik ※
R e f e r e n c e E l e c t r o d e

15. 1
2. Calomel electrode
※ Vogel ※ Patnaik ※ Patnaik ※
R e f e r e n c e E l e c t r o d e

16. 1
3. Silver/ silver chloride electrode
※ Vogel ※ Patnaik ※ Patnaik ※
R e f e r e n c e E l e c t r o d e

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3. Silver/ silver chloride electrode
※ Vogel ※ Patnaik ※ Patnaik ※
R e f e r e n c e E l e c t r o d e

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Characteristic :
※ Vogel ※ Patnaik ※ Patnaik ※
I n d i c a t o r E l e c t r o d e

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Applications:
※ Vogel ※
I n d i c a t o r E l e c t r o d e

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Metallic Indicator Electrodes :
- Simple indicator electrode will usually consist of a carefully cleaned
rod or wire of the appropriate metal
Class
1. electrodes of the first kind
2. electrodes of the second kind
3. inert redox electrodes
※ Vogel ※ Patnaik ※ Patnaik ※
I n d i c a t o r E l e c t r o d e

21. 2
Metallic Indicator Electrodes :
1. Electrodes of the first kind
※ Vogel ※ Patnaik ※ Patnaik ※
I n d i c a t o r E l e c t r o d e

22. 2
Metallic Indicator Electrodes :
2. Electrodes of the second kind
and
※ Vogel ※ Patnaik ※ Patnaik ※
I n d i c a t o r E l e c t r o d e

23. 2
Metallic Indicator Electrodes :
3. Inert redox electrodes
- relatively inert conductors respond to redox systems.
Such materials as platinum, gold, palladium, and carbon can be used
to monitor redox systems.
- E.g. For example, the potential of a platinum electrode immersed in a
solution containing cerium(III) and cerium(IV) is …
※ Vogel ※ Patnaik ※ Patnaik ※
I n d i c a t o r E l e c t r o d e

24. 2
Glass Indicator Electrodes :
typical cell for measuring pH
※ Vogel ※ Skoog ※
I n d i c a t o r E l e c t r o d e

25. 2
I n d i c a t o r E l e c t r o d e
Glass Indicator Electrodes :
※ Skoog ※

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Glass Indicator Electrodes :
I n d i c a t o r E l e c t r o d e
※ Vogel ※ Skoog ※

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Glass Indicator Electrodes :
Glass cell
I n d i c a t o r E l e c t r o d e
※ Skoog ※

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Glass Indicator Electrodes :
Potential measurement
I n d i c a t o r E l e c t r o d e
※ Skoog ※ Kasture ※

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Glass Indicator Electrodes :
I n d i c a t o r E l e c t r o d e
※ Vogel ※ Skoog ※

30. 3
Glass Indicator Electrodes :
I n d i c a t o r E l e c t r o d e
※ Kasture ※

31. End of
topic
Reference: