Acid-base titration tube

The utility model belongs to the technical field of chemical experiment equipment and particularly relates to an acid-base titration tube. The titration tube comprises a tube body (1), wherein a guide bar (2) is fixed at a nozzle at the top of the tube body (1) and obliquely arranged at the nozzle; the bottom end of the guide bar (2) is fixed on the inner wall of the tube body (1); and a gap exists between the outer wall of the guide bar (2) and the nozzle of the tube body (1). The acid-base titration tube has the advantages of simple structure, convenience and practicability; and when a student pours solution into the acid-base titration tube, the solution can smoothly enter the acid-base titration tube due to the existence of the guide bar, the gap between the outer wall of the guide bar and the nozzle can prevent the solution from flowing to the outer wall of the titration tube along the guide bar, so that the operation is convenient, and meanwhile, the waste of the solution is avoided.