Borosilicate Salt Bridge (Diameter of "U" tubes: Outer: 0.53in/Inner: 0.41in; Diameter of bottom tube: Outer: 0.32in/Inner:0.19in

• Inverted tube in a "U" shape with tightly closed ends
• Made of sturdy borosilicate glass
• 6.5 inches in height
• 4 3/8 inches in width (between the arms of the "U")

The salt bridge is used to connect the oxidation and reduction half-cells of a galvanic cell. It allows ions to flow from one solution to the other without mixing the solutions (thus completing the electrical circuit) and allows the solutions in the two half-cells to remain electrically neutral.
Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.