Tannic Acid (ppm) Damp (58%) %Solubility Water Absorbent (a)
0 14.88±0.34a 30.10±1.23a 9.93±0.33a
250 14.88±0.34a 28.16±1.41a 8.78±.18b
500 13.88±0.08b 26.85±1.29b 8.74±0.11b
1000 13.61±0.23b 22.40±2.01c 7.32±.25c
Letters in table (a,b,c,d) presenting the tolerances of 0.05%. (a) - (gr wet material/ gr dry material).
Table 4: Moisture content, Solubility in water and water adsorption capacity.