... medicine industry,also in metallurgical,leather tanning,dyening and printing,agriculture.(3)packing:25kg /bag,duplicate membranes weave the bag ,the ... plastic bag. 1.Appearance Of Medium Granule Chemical name: sodium hydrogen carbonate, sodium bicarbonate, NaHCO3Bulk density: 1.10~1.12 g/cmCAS ... .0001%PASSHeavy Metal Content≤0.0005%PASSAmmonium Salt——PASSClearness——PASS sodium bicarbonate food grade