Sparre Chemicals Sparre Chemicals is a leading Manufacturer, Retailer, Supplier of Potassium chloride, Calcium Silicate, etc. These chlorides are best in working and very easy to use. Very easy to use, these products are best in working and completely safe to skin exposure. These chlorides are quality checked by the experts and offered in the market in pure form. Owing to our advanced manufacturing facilities, we have been able to manufacture and supply reliable Calcium Silicate. We process this calcium silicate under the supervision of our adroit professionals using superior grade chemical compound and latest processing technology.