... .Industry grade/food grade 2.98% 3white or yellow crystal sodium metabisulfite 98% Property: white or light yellow crystal powder, a ... Product/Service (We Sell):TCCA,SDIC,sodium hydrosulfite,calcium hypochlorite,hydrofluoric acid,organic matter,sodium sulfide,caustic soda,ammonium bifluoride,potassium fluoride ... ISO 9001:2000 QS-9000 Contract Manufacturing:OEM Service Offered sodium metabisulfite 98%