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Diluted Bases Solutions Preparation


Ammonium hydroxide, 3 M, 3 N. Dilute 200 ml of concentrated solution (14.8 M, 28% NH₃) to 1 liter.

Barium hydroxide, 0.2 M, 0.4 N. Saturated solution, 63 g per liter of Ba(OH)₂.8H₂O. Use some excess, filter off BaCO₂ and protect from CO₂ of the air with soda lime or ascarite in a guard tube.

Calcium hydroxide, 0.02 M, 0.04 N. Saturated solution, 1.5 g per liter of Ca(OH)₂. Use some excess, filter off CaCO₂ and protect from CO₂ of the air.

Potassium hydroxide, 3M, 3N. Dissolve 176 g of the sticks (95%) in water and dilute to 1 liter.

Sodium hydroxide, 3M, 3N. Dissolve 126 g of the sticks (95%) in water and dilute to 1 liter.