The Sodium Gluconate is white to yellowish crystal flowing powder. Our Sodium Gluconate has two grade as FCC-IV grade and tech grade. The tech grade product widely applied in construction field as additive for concrete to slow down the solidification. Also, it can increase the configuration intensity of concrete. The detailed specification as below, Food Grade FCC-IV: PURITY: 98.0%-102% LOSS ON DRYING 0.30%MAX REDUCING SUBSTANCE 0.50%MAX HEAVY METAL 10 PPM MAX ARSENIC 2 PPM MAX SULPHATE 0.04%MAX CHLORIDE 0.05%MAX LEAD 1 PPM MAX PH VALUE 6.2-7.8 Tech Grade: PURITY: 98.0%MIN LOSS ON DRYING 0.50%MAX REDUCING SUBSTANCE 0.70%MAX HEAVY METAL 10 PPM MAX ARSENIC 2 PPM MAX SULPHATE 0.05%MAX CHLORIDE 0.07%MAX LEAD 2 PPM MAX PH VALUE 6.2-7.8