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Official Journal of the Japan Wood Research Society

Table 2 pH values and elemental analysis of Japanese cedar wood ash and Japanese cedar wood ash–water mixture

From: Japanese cedar (Cryptomeria japonica) ash as a natural activating agent for preparing activated carbon

Sample

pH

Ash analysis (% oxides)

SiO2

Al2O3

Na2O

K2O

MgO

CaO

TiO2

Fe2O3

Ash

12.86

3.86

0.75

ND

34.30

5.75

34.30

0.05

0.79

Ash–water mixture

pH

Ash–water analysis (ppm)

Si

Al

Na

K

Mg

Ca

Ti

Fe

JC-0.20

13.68 (0.01)

317.4

4.7

312.1

47832.4

0.1

2.9

0.2

0.1

JC-0.25

13.80 (0.02)

367.5

2.2

394.4

60788.3

ND

3.1

0.2

0.2

JC-0.33

14.03 (0.04)

573.9

8.1

509.4

72509.0

0.4

4.8

0.3

0.3

  1. ND not detected