Activated Carbon from the Chinese Herbal Medicine Waste by H₃PO₄ Activation

Table 1

The amount of PA acid prepared for three different concentrations.

PAC	IR
	1.5	2.5	3.5
30%	PA : water	PA : water	PA : water
	17.64 g : 32.36 g	29.41 g : 53.92 g	41.18 g : 75.5
50%	PA : water	PA : water	PA : water
	17.64 g : 12.36 g	29.41 g : 20.59 g	41.18 g : 28.82
70%	PA : water	PA : water	PA : water
	17.64 g : 3.83 g	29.41 g : 6.3 g	41.18 g : 8.82