General Aim of Standardization of Sodium Thiosulphate
Standardization of sodium thiosulphate solution.
Method of Standardization of Sodium Thiosulphate
Iodometric Titration of Sodium Thiosulphate
Learning Objectives (ILOs)
Preparation and standardization of sodium thiosulphate.
Understanding the difference between iodometry and iodimetry while performing standardization of sodium thiosulphate.
Understanding the concept of iodometry during standardization of sodium thiosulphate experiment.
Understanding the concept of redox reactions.
Theoretical Background / Context
Iodometric Titration:
- The titration in which the sample has oxidizing properties.
- Upon adding potassium iodide, free iodine is liberated equivalent to the sample.
- The liberated iodine can be easily determined against a standard reducing agent.
Iodometric Titration:
- The titration in which the sample has reducing properties and thus can be determined directly against Iodine.
Principle of Work
In Standardization of Sodium Thiosulphate Experiment:
- Sodium thiosulphate is a reducing agent which can be standardized against iodine (oxidizing agent ) by an iodometric titration experiment using sodium thiosulphate.
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