*pH measurement of AO acid AN solution
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Keep the water temperature at around 90 degrees, then add *AO acid AN particles and dissolve them; the solubility is approximately 80%. Maintain the pH at around 4. There are solid *AO acid AN particles in the solution to be tested, and they are dissolved while stirring! Are there any good methods for measuring pH in such an environment, and what should be taken into consideration?
This issue can be resolved by measuring density – it’s sensitive, accurate, efficient, and may even save money. My brother is an expert at making densitometers and concentration meters; if you need one, come to him. There’s also a portable densitometer that can be used to measure density in small beakers, and it remains accurate throughout its lifetime. When used as a calibration tool for online densitometers, it’s simply an amazing device!