The sodium bisulfite content was measured, with a result of 106.86%.
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When testing sodium bisulfite using the YY0204-95 standard, the result exceeded 100%. What is the reason for this?
Was there a mistake in the weighing, or in the calculations? Or the reagent concentration was incorrect.
Sodium sulfite or sodium bisulfite are strong reducing agents, and their purity generally does not exceed 99.5% (for industrial use); however, your result is much higher than 100%. I think there must be an issue with the testing, not with the sample itself. It is necessary to thoroughly understand the analytical methods for sodium bisulfite, carry out each step of the testing and analysis carefully, keep accurate records of the entire process, and use reliable calculation tools.