1.cas NO.:546-93-0 2.white powder 3.compititive price with good quality 4.Professional ... service 1,Classification:Magnesium carbonate 2,Appearance:white monocline crystallizes or the amorphous powder 3,Cas ... color fixative, the carrier, the anti-knot quick medicinal preparation;2,Makes the chemical additive, the magnesium element compensation medicinal preparation ...