流体物性が炭酸カルシウム構造体形成に及ぼす影響

抄録

Calcium carbonate has been studied more than 100 years as the subject of basic chemistry, materials science, chemical engineering, and so on. In the natural world, this is often found in seashells and bones of sea creatures, and when these settle on the ocean floor for millions of years it forms limestone. Specific surface area defined as the total surface area of a material per unit of mass (with units of m²/g) is one of the key physical properties to evaluate powder or porous solids. Here we report our original crystallization method to obtain nanoparticles of calcium carbonate with huge specific surface area (~200 m²/g). We show the effect of process parameter, especially fluid properties; viscosity, temperature, and concentration on calcium carbonate microstructure.