Tetra Calcium Chloride Flakes (CaCl2) is a white, flaked, dihydrate product with 77 percent by weight calcium chloride. Flake applications include: Chemical Industry: provides good source of soluble calcium Oilfield: can be used as fluid for drilling, cementing, and workover operations. Ready Mix Concrete: accelerates setting times. Snow and Ice Melting: facilitates de-icing on highways and pavement. Soil Conditioning: stabilizes roadbeds and facilitates salt remediation. Water Care: provides source of calcium for pools and non-potable applications. 50 lbs.