... as dispersion agent for ceramic, clay, latex and pigments etc. Packing and storage: NOINDEXESFOOD GRADETECH GRADE1AppearanceWhite powder or lumps 2Assay ... plating, china-clay purification, dyeing, oil-drilling muds, and synthetic rubber production. Also known as normal potassium pyrophosphate, ... hard water, to increase washing capability, to remove dirt, and to form a layer of protection film on metal ...