Preparation and Standardization of 0.05 M Magnesium Sulphate : Pharmaceutical Guidelines

Preparation and Standardization of 0.05 M Magnesium Sulphate

Preparation and standardisation of 0.05 M Magnesium Sulphate solution using Disodium Edetate and Mordant Black II mixture as indicator used in pharmaceutical analysis.

Magnesium Sulphate Solution Preparation

•  Dissolve 12.5 g of magnesium sulphate in sufficient water to produce 1000 ml.
•  Standardize the solution in the following manner.

Magnesium Sulphate Solution Standardization

•  Pipette 30.0 ml of solution into a flask.
•  Add 20 ml of water, 10 ml of strong ammonia-ammonium chloride solution and 50 mg of mordant black II Mixture.
•  Titrate with 0.1 M disodium edetate until the colour changes from violet to full blue.
•  1 ml of 0.1 M disodium edetate is equivalent to 0.02465 g of MgS04.7H2O.

Also see: Determination of Shelf Life of Solutions in Laboratory

Ankur Choudhary is India's first professional pharmaceutical blogger, author and founder of Pharmaceutical Guidelines, a widely-read pharmaceutical blog since 2008. Sign-up for the free email updates for your daily dose of pharmaceutical tips.
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