The pH of carboxymethylcellulose (CMC) is usually measured using a pH meter.
First, dissolve a certain amount of carboxymethyl cellulose (CMC) in pure water and stir well to ensure its uniform dispersion. Then, place the pH meter in the solution and wait a few minutes to ensure the reading stabilizes. Record the reading as the pH of the carboxymethylcellulose (CMC) solution. To ensure accuracy, pH meters should be calibrated with standard buffers and stabilized prior to measurement.
