AQUEOUS COLLOID DISPERSION

摘要

PROBLEM TO BE SOLVED: To enable sure and easy dispersion of a minor element such as iron in sodium chondroitin sulfate and obtain a high-quality colloid dispersion having high preservability. SOLUTION: The aqueous colloid dispersion contains sodium chondroitin sulfate derived from shark and has iron and sulfur content of 3-6.5 wt.%. The invention further provides a method for the production of the colloid dispersion.