pH buffer solution of ph meter
The pH buffer solution is a solution that keeps the pH steady. If a small amount of acid or base is added to this solution or a small amount of acid or base is formed by chemical reaction in the solution and the solution is properly diluted, the pH of this solution is substantially constant, Or alkali or diluted, and make the pH is not easy to change the solution is called pH buffer solution.
pH standard buffer solution has the following characteristics:
⑴ standard solution pH is known, and to achieve the required accuracy.
⑵ pH standard solution has good reproducibility and stability, with a larger buffer capacity, smaller dilution and smaller temperature coefficient.
⑶ Preparation of the solution is simple.