気体透過法による鉱粒表面積測定法について (第2報)
1955 年 71 巻 808 号 p. 639-644
詳細
1955 年 71 巻 808 号 p. 639-644
The surface areas of mineral particles are measured by gas-permeability method, its shape factor being estimated against the variation of particle size. From the results of experiments, magnetite and chromite seem to have considerably large value of shape factor under 270 mesh, different from many other minerals such as fluorite, gypsum, galena etc.
The areas of same samples as determined by gas permeability method are measured by B. E. T. method of nitrogen gas adsorption experiments. Then, the insensitive 'characteristics of permeability method, compared with B. E. T. method, are illustrated.
