Method for quickly determining solid-containing content of phosphoric acid by utilizing centrifugal machine

The invention relates to the technical field of the monoammonium phosphate production, specifically a method for quickly determining solid-containing content of phosphoric acid by utilizing a centrifugal machine. The method comprises the following steps: determining phosphoric acid solutions with different solid-containing gradients by using the centrifugal machine, and comparing the phosphoric acid solution with the precise solid-containing content of the phosphoric acid solution, drawing a standard curve, and obtaining centrifugal machine determination test tube scale and a solid-containingcomparison table; centrifuging the solid-containing content of the to-be-determined phosphoric acid solution by adopting the centrifugal machine, performing phosphoric acid solid-containing determination on a result obtained through centrifuging by using the comparison table, namely obtaining the phosphoric acid solid-containing value. The operation time of the method can be accomplished within 30min, the solid-containing