Method for converting ammonium dihydrogen phosphate and measuring content of barium sulfate in barite
A technology of ammonium dihydrogen phosphate and barite, which is applied in the direction of removing certain components and weighing, using precipitation for chemical analysis, etc., can solve the problems of large environmental pollution, slow analysis speed, toxicity, etc. long time effect
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[0028] Embodiment 1: a kind of method that adopts ammonium dihydrogen phosphate to convert and measure barium sulfate content in barite, its principle is: utilize barium sulfate and ammonium dihydrogen phosphate to form metaphosphoric acid in combination with barium ion and hydrogen phosphate under high temperature conditions Barium, Sulfate as SO 3 The form is volatilized, and the barium polymetaphosphate is converted into a barium phosphate precipitate through acid, alkali soaking and other treatments, and then the precipitate is dissolved to a constant volume, and an appropriate amount of the solution is added to 50 mL of quinolimonone solution, and the barium phosphate in the barium phosphate is dissolved by hydrochloric acid. Phosphate ions are converted into orthophosphoric acid, and then the mass fraction of barium metaphosphate in the precipitate is calculated through the co-precipitation formed by phosphoric acid and quinolimonone, and then the content of barium sulfat...
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