Preparation and standardisation of 0.02 M Cupric Sulphate solution using Disodium Edetate and Pyridylazonaphthol solution as indicator that is used in pharmaceutical analysis.
Cupric Sulphate Solution Preparation
- Dissolve 5.0 g of cupric sulfate in water and dilute to 1000 ml with water.
- Standardize the solution in the following manner.
Cupric Sulphate Solution Standardization
- To 20.0 ml add 2 g of sodium acetate.
- Titrate with 0.02 M disodium edetate, using 0.1 ml of pyridylazonaphthol solution as an indicator, until the color changes from violet-blue to bright green, adding the titrant slowly towards the end-point.
- 1 ml of 0.02 M disodium edetate is equivalent to 0.004994 g of CuSO4.5H2O.
Also see:
Determination of Shelf Life of Solutions in Laboratory
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