Specifications: we supply quality product potassium sulphate for firtilizer with higher % of k2o and low % moisture assay. 97-99% wwloi. nmt 2% wwk2o. 50-54% wwkcl. nmt 1% wwna2so4. nmt 1% ww moisture nmt 0.5% ww* chloridr nmt 500 ppm it is also known as sulphate of potash or potash of sulfarwidely it is use as a fertilizer it doen not contain chloride .Crude salt is also used occationaly in the glass manufacturing .Sometime it is used as alternative blast media similarly to soda blasting as it is harder and similarly water soluble.