Used to make early strengthen agent (concrete strengthening agent and coating material coagulating agent etc) in construction industry. Used as a snow thawing agent for snow thawing work on roads, parking lots, and airports etc. Used in oil well drilling, used as well drilling fluid, completion fluid, well cementation fluid, and workover fluid, and it is also used as dehydrate in petroleum chemical industry. Item Index Appearance gray white or white granule,powder and pellet Purity(CaCl2) % â?¥ 94.0 Alkali metals chloride (NaCl) % â?¤ 5 Alkalinity( Ca(OH)2 % ) % â?¤ 0.2 Sulphates (CaSO4) % â?¤ 0.05 Water Insoluble matter % â?¤ 0.15 PH 7.5-11