The pH value of polyaluminum chloride (PAC) can be determined by the following two methods:
pH test paper method: Take out a certain amount of PAC sample, stir evenly at room temperature, dip a small amount of sample with pH test paper, compare the test paper to the Color Chart to determine the pH value of the sample.
pH meter method: Take out a certain amount of PAC sample, stir evenly at room temperature, insert the electrode into the sample, and use the pH meter to read the pH value of the sample.
NBCHAO reminds you: when measuring pH, the sample should be fully stirred so that the sample can be fully mixed. In addition, in order to reduce errors, it is recommended to perform multiple measurements and take the average value.
