... ; Easily soluble in water, insoluble in alcohols; Has salty taste. Sodium gluconate is widely used in textile dyeing, printing and metal surface ... bottle, retarder for cement, plating and alumina dyeing industries. Item Food grade Identifications Meet the specifications Purity, % 98.0-101 Drying loss ... .002 Sulphate, % ≤ 0.03 Chloride, % ≤ 0.03 Reduzate, % ≤ 0.30 Sodium gluconate tech grade