Preparation of a solid acid derived from Japanese cedar sawdust and evaluation of its the catalytic activity

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Official Journal of the Japan Wood Research Society

Fig. 5 | Journal of Wood Science

Fig. 5

pH titration and d pH/d mL using Cedar-SO₃H. Cedar-lignin-SO₃H, 1.0 g; Titrant, 0.05 mol/L; temperature, 25 °C