Product name:Sodium Bicarbonate Molecular formula :CHNaO3 Use:It is mainly used in food, medicine, movie-making, tanning, dressing, metallurgy, textile fiber, rubber, detergent, fire-extinguishing,hametz and so on. Weight:25kg Technical parameter Standard number:GB1887-1998 Total alkali(NaHCO3):99%min Drying loss :0.2%max PH 910g/L% :8.6%max Arsenic (As)% :0.0001%max Heavy metal(Pb) % :0.0005%max