... was used for desulfurisation, water treatment, animinal feed,refractory,chemicals and so on.XINYANG Minerals Group is located in Fengcheng City of Liaoning , ... called natural magnesium hydroxide, molecular formula is Mg(OH)2,shows itself in white or white gray color.There are wide applications ... 92%SIO2 3.5%- 4.5%CAO 2.5%-3.5%SIZE: 80mesh,120mesh,200mesh,325mesh and so on waste and water treatment