Item Upper Grade Appearance White powder Na2H2P2O7 %í¦95.0 pH value 4.0í+0.5 Water insoluble % í_1.0 Heavy metal ( base on Pb ) % í_ 0.001 Arsenic ( base on As ) % í_0.0003 Fluoride ( base on F ) % í_0.005 Useú¦It acts as a buffer, leaven, modifier, emulsifier, nutrient and canning preservative in foods. It also can be used in oil drilling as dispersant agent. Packingú¦25kg woven bag with plastic liner.
