Chemical name:sodium acid pyrophosphate(sapp) formula:a2h2p2o7molecular weight:221:94properties: white crystal or power, soluble in water, acidic property appeared in aqueous solution.Specifications: fcc-vapplication:it acts as a buffer, leaven, modifier, emulsifier, nutrient and canning preservative in foods, Packing:in 25kgs net paper or plastic woven bags.Storage and transport:it should be stored in a dry, ventilative and clean warehouse.Kept away from moisture and hot.Furthermore, it should be stored separately from poisonous substances. Name of index%fcc-v Content%93.0-100.5 Arsenic%0.0003 Heavy metals%-- Pb%0.0002 Fluoride%0.005 Insoluble substances%1.0 Ph value-- 25kg bags