... .14 concrete admixtures,food additives & cleaner Sodium Gluconate technica grade(concrete admixture) Sodium gluconate is the sodium salt of gluconic acid, produced by ... corrosive, non toxic and readily biodegradable (98% after 2 days), sodium gluconate is more and more appreciated as chelating agent. Main ... .50 max PH6.2 ~ 7.8 Sulfate ,%0.02 max Chloride ,%0.02 max Pb ,ppm1 max Arsenic salt , ppm2 max ...