magnesium carbonate for desiccant 1. MgO content 38%-41% 2. white powder 3. strength production capability 1. Appearance: white powder2. Specification: magnesium carbonate for desiccant a ... ≥ 52.054-58 3.Application: Used in the manufacture of magnesium, magnesium oxide, fireproof, paint, ink, pottery, glass,toothpaste, rubber, pigment, dately ...