Table 1. Properties of Original Char and Leached char³.

	OC	2LC	48LC
Proximate analysis (wt %)
moisture	0.600	0.240	0.000
volatile matter (db)a	4.530	3.980	3.510
ash (db)a	6.900	5.300	3.400
fixed carbon (db)b	88.570	90.720	93.090
Ultimate analysis (wt % dbc)
C	85.770	87.280	87.920
H	1.120	0.950	0.880
N	0.370	0.360	0.360
S	0.090	0.070	0.060
Ob	5.760	6.040	7.380
Mineral content (wt % db)
Na	0.076	0.045	0.017
K	0.569	0.306	0.077
Mg	0.266	0.260	0.235
Ca	1.120	1.020	0.932
Fe	0.072	0.062	0.060
Al	0.034	0.034	0.033
Mn	0.154	0.155	0.153
P	0.068	0.070	0.069
Si	0.145	0.192	0.085
specific surface area (m2/g)	330 ± 1.87	340 ± 2.16	410 ± 2.56

^aDetermined at 550 °C.

^bCalculated by the difference.

^cdb: dry basis.