Grinding composition and grinding method

Abstract

This invention provides a grinding composition capable of achieving excellent grinding removal rates. The grinding composition provided by this invention comprises a permanganate and a zirconium oxychloride. In this grinding composition, regarding the zirconium oxychloride, the ratio of the molar concentration c of the zirconium oxychloride in an aqueous solution of the zirconium oxychloride to the molar concentration N of the acid is greater than 1.8.