We are offering Ammonium Bicarbonate 99% by wt. min. (dry basis) Chlorides (as Cl) 0.01% by wt. max. Sulphate (as SO4) 0.01% by wt. max. Iron (as Fe) 0.002% by wt. max. Non Volatile Matter 0.01% by wt. max. Heavy Metals (as Pb) 2.50 ppm. max. Copper...