MAGNESIUM HYDRATE COMPOSITION AND MANUFACTURING METHOD THEREOF, AND RESIN COMPOSITION AND MOLDED ARTICLE THEREOF

摘要

Provided is a magnesium hydrate composition comprising magnesium hydrate particles containing iron and/or manganese and sulfur. The content (M) of the iron and/or manganese as measured using an atomic absorption spectrophotometer is in the range of 10-1,000 ppm with respect to the magnesium hydrate particles, the content (S) of the sulfur as measured using an infrared absorption method is in the range of 10-1,800 ppm with respect to the magnesium hydrate particles, and the ratio (S/M) of the content (S) of the sulfur to the content (M) of the iron and/or manganese is in the range of 1.0-1.8. The magnesium hydrate composition has excellent flame retardancy and sustainability thereof when mixed with a resin, and excellent thermal deterioration resistance and a good hue can be imparted.