Determination of sodium sulfite and sodium bisulfite
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In the experiment, we need to measure the content of sodium sulfite and sodium bisulfite. Both qualitative and quantitative methods are acceptable. The method is not required to be precise, but simple and convenient. Can any expert help tell me what analytical method is used to measure it? Thanks in advance.
I don't know if this works: 1. First titrate the hydrogen ions with alkali and calculate the sodium bisulfite. 2. Then measure the sulfur dioxide content according to the standard to obtain the total amount of sodium bisulfite and sodium bisulfite. 3. Subtract the two. . .