... ) IS WHITE CRYSTAL POWDER OR GRANULAR, ISO9001 CERTIFIED SUPPLIER SODIUM ACID PYROPHOSPHATE (SAPP ) IS WHITE CRYSTAL POWDER OR GRANULAR, ISO9001 ... solution is heated together with diluted inorganic acid, it will be hydrolyzed into phosphoric acid; It is hydroscopic, and when absorbing ... temperature above 220°C, it will be decomposed into sodium meta phosphate.Uses:As a leavening agent it is applied ...