Sodium Bicarbonate is used every day in the food we eat and products we use. Industrial applications utilize sodium bicarbonate as a reactive carbonate or sodium source and as a pH buffer. It is used in... : Items Index Food Grade Pharmaceutical Grade NaHCO3: 99~100.5% 99~100.5% Cl: 0.4%Max 0.02%Max Arsenic(As): 0.0001%Max 0.0002%Max Heavy Metals(As Pb): 0.0005%Max 0.0005%Max Loss on drying 0.2%Max -- Ph: 8.6Max 8.6Max Sulphate -- 0.005%Max Fe: -- 0.0005%Max Sodium -- Positive reaction Appearance of solution -- Clear and colorless