abstract |
In one aspect of the present invention, the adsorption amount of benzene is 25 to 40%, the adsorption amount of vitamin B12 is 13.0 to 50.0 mg/g, and the pore volume of the mesoporous calculated by the BJH method from the nitrogen adsorption isotherm is 0.070 to 0.150 cm 3 /g. It relates to phosphorus and carbonaceous materials. |