Preparation and Standardization of 0.05 M Barium Chloride

Barium Chloride Solution Preparation

• Dissolve 12.2 g of barium chloride in sufficient water to produce 1000 ml.
• Standardize the solution in the following manner.

Barium Chloride Solution Standardization

• To 10.0 ml of the solution add 60 ml of water, 3 ml of strong ammonia solution and 0.5 to 1 mg of metalphthalein as an indicator.
• Titrate with 0.05 M disodium edetate. 
• As the solution begins to decolorize, add 50 ml of ethanol (95 %) and titrate until the bluish violet color is discharged.
• 1 ml of 0.05 M disodium edetate is equivalent to 0.012215 g of BaCl2.2H20.

Also see: Determination of Shelf Life of Solutions in Laboratory