KCl Salt Bridge

KCl salt bridges are made in our lab using plastic tubing.

Step 1: Cut plastic tubing and bend it using flame from a bunsen burner.

Step 2: Make 1% agarose with 3 M KCl

4.47 g of KCl and 0.2 g of agarose in 20 ml of distilled water

Step 3: Melt the agarose gel in the microwave and pull the gel into the bent plastic tube using a 10 ml syringe.