A Salt Bridge (Borosilicate Glass) is a laboratory apparatus used in electrochemical experiments to connect two half-cells of a galvanic or electrochemical cell. It allows the transfer of ions between the two solutions while preventing them from mixing directly, thereby maintaining electrical neutrality and completing the electrical circuit.The salt bridge is made from high-quality borosilicate glass, which provides excellent resistance to heat, chemicals, and thermal shock. It is typically in the form of a Ushaped glass tube that can be filled with an appropriate electrolyte solution or gel, such as potassium chloride or potassium nitrate, to facilitate ion movement.