MAGNESIUM OXIDE PARTICLE AGGREGATE

摘要

An object of the present invention is to provide a magnesium oxide particle aggregate having a controlled particle aggregation structure so that the solid phase-solid phase reaction between magnesium oxide and the SiO2 film on the surface can be appropriately controlled. The object can be achieved by a magnesium oxide particle aggregate characterized in that a first inflection point diameter is 0.30 x 10<-6> m or less, an interparticle void volume is 1.40 x 10<-3> to 2.20 x 10<-3> m<3>/kg and a particle void volume is 0.55 x 10<-3> to 0.80 x 10<-3> m<3>/kg in a cumulative intrusion volume curve of the particle aggregate.