1. Chemical COMPOSITION NaHCO3 bigger than 99% and less than 100. 5% Loss on drying less than: 0. 2% Chloride-CI) less than: 0. 015% Sulfate-SO4 less than: 0. 015% Arsenic) less than: 0. 0001% Heavy Metal (Pb) less than: 0. 0005% Lead less than: 0. 0002% 2. Granulation: MESH SIZE (DIAMETER) CULMULATIVE RETAINED ON U. S STANDARD SCREEN # 40 (420 Microns) 2% # 60 (250 Microns) 72% # 70 (210 Microns) 96% # 100 (149 Microns) 99% 3. Typical BULK DENSITY 1059 gpl