... rapid ferment agent, quality improver in food industry. Applied to acid component of synthetic swelling agent, such as, bread, cake. Builted ... outer plait Specifications: SAPP Appearance White Powder Disodium Dihydrogen Pyrophosphate %(w/w) min. 95.0 Water Insoluble %(w/w) max. 1.0 Arsenic ... max. 50 pH (1% aqueous solution) 4.0+0.5 Sodium Acid Pyrophosphate