Table 1: Carbonate content, organic content, and CNHS analysis of raw materials.

SampleCarbonate content (%)Organic matter content (%)%C%H%N%S

OSA39.54 ± 0.8911.83 ± 0.1211.60 ± 0.010.40 ± 0.020.012 ± 0.00.0
Clay7.36 ± 0.332.29 ± 0.092.25 ± 0.010.34 ± 0.0040.05 ± 0.0020.032 ± 0.008

Determined according to ASTM D-2974.