Calcium chloride

White crystalline solid, highly soluble, hygroscopic.

Calcium chloride is a white crystalline solid that is highly soluble in water and has a strong hygroscopic property. It is commonly used as a drying agent, de-icer, and food preservative due to its ability to absorb moisture and lower the freezing point of water.

Energy Sector

Calcium chloride is used in the oil and gas industry as a drilling fluid additive to increase the density of drilling muds, control well pressure, and prevent formation damage. It is also used as a completion fluid to control formation permeability and reduce water blockage. Calcium chloride is a versatile and cost-effective option for drilling operations in various formations and environments. Additionally, it can be used as a brine in well completion and workover operations, as well as a component in cementing operations for enhancing cement properties and preventing gas migration.

Water Treatment

Calcium chloride is used in the water treatment industry as a flocculant to coagulate and remove impurities from water. It helps to agglomerate suspended solids, such as sediment, algae, and bacteria, into larger particles, which can then be easily separated from the water. Calcium chloride is commonly used in municipal and industrial water treatment processes, including sedimentation, clarification, and filtration, to improve water quality and reduce turbidity. It is also used as a water softener to reduce water hardness by precipitating calcium and magnesium ions, which can cause scale formation in pipes and equipment.

Food Additives

In the food industry, calcium chloride is commonly used as a food preservative and firming agent. It helps to extend the shelf life of various food products, such as canned vegetables, pickles, and processed cheeses, by inhibiting the growth of spoilage microorganisms. Calcium chloride is also used in the production of tofu, as it helps to coagulate soy milk and form solid curds. Additionally, it is used in the production of processed fruits and vegetables to maintain texture and firmness, and as a source of calcium in food fortification.

CAS No.: 7440-70-2


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