Formular: NaHCO3Specifications: Total alkali content(by NaHCO3): 99.0-100.5% Heavy metalby pb: 0.0005%MAX Arsenic content As: 0.0001%MAX PH value (10g/L): 8.6MAX Loss on dry: 0.20% MAX Using: Chemical reagent, inorganic compound, medicine, leather, food, textile, dyeing industries, extinguish ant, detergent and fertilizer.