Calcium Chloride powder:
Calcium chloride is an important calcium salt that has many household and industrial applications. Calcium chloride occurs in nature in its hydrated forms as the rare minerals sinjarite (dihydrate) and antarcticite (hexahydrate). It is also found in large amounts in natural brine from salt lakes and salt deposits.
Calcium chloride is mainly produced by reacting limestone (CaCO3) with hydrochloric acid (HCl).
CaCO3 + 2 HCl → CaCl2 + CO2 + H2O
It is also produced as a major by-product during manufacture of soda ash (Na2CO3) by the Solvay process, in which limestone is reacted with NaCl solution.
Formula and structure:
The chemical formula of calcium chloride is CaCl2, and its molar mass is 110.983 g/mol. It is an ionic compound consisting of the calcium cation (Ca2+) and two chlorine anions (Cl-). The bivalent calcium metal forms an ionic bond with two chlorine atoms, as shown below.
Calcium chloride is found as an odorless white powder, granules or flakes. It has a density of 2.15 g/mL, melting point of 782 °C and a high boiling point over 1600 °C.
CaCl2 is highly water soluble, hygroscopic (absorbs moisture from air) and deliquescent (absorbs enough water to turn into liquid). Calcium chloride dissolves in water in a very exothermic manner (releasing a large amount of heat). Calcium chloride fully dissociates in water to give calcium cations and chloride anions. In aqueous solutions, the calcium ions can displace other ions in exchange reactions, such as the conversion of potassium phosphate into calcium phosphate:
3 CaCl2 + 2 K3PO4 → Ca3(PO4)2 + 6 KCl
Calcium Chloride Powder uses:
Drilling fluid additive:
Onshore and offshore oil and gas producers rely heavily on custom-formulated clear brine fluids containing calcium chloride for all types of drilling and completion applications. These fluids are used in oilfield completion and workover operations to reduce water activity and create osmotic forces to prevent absorption of water by shales. The divalent calcium ion inhibits clay swelling, dispersion and migration. Water containing high concentrations of calcium chloride can be used as a kill fluid in production wells, especially those containing heavy concentrations of carbon dioxide.
Probably the most well known use of calcium chloride is in conjunction with snow removal. When calcium chloride is dissolved in water, it generates heat, which melts ice. It is used on roads, parking lot and sidewalks. Products such as Peladow, which is a snow and ice melter, and Combotherm, which is a blended, commercial-strength de-icer, contain calcium chloride. It is also used on unpaved roads to help control dust.
Calcium chloride is used in the manufacturing of plastics and the production of calcium salt. It is used in the production of concrete. Calcium chloride accelerates the curing (drying) speed of poured concrete. Drilling of gas and oil wells is more efficient when calcium chloride fluids are used. Calcium chloride may also be used as an additive to swimming pools, fabric softeners and fire extinguishers.
Calcium chloride injections are used as a medical treatment for a number of conditions. Examples include treating depression caused by a magnesium sulfate overdose, critical symptoms of lead colic (chronic lead poisoning) and for insect stings and bites (i.e., Black Widow spider). Calcium chloride may be used in cardiac resuscitation if epinephrine does not work to correct myocardial contractions. This may happen following open heart surgery.
Calcium chloride may also be used as a hydrocarbon desiccant (a drying agent), and may be found in products such as DampRid, which absorbs moisture from the air, effectively lowering the humidity. This type of product is commonly used in places like damp basements. Calcium chloride is also used as a food-processing agent (as a preservative, flavor enhancer, freezing ice cream), an additive in sports drinks, cheese and beer (as a source of calcium), and as a tire ballast (to add weight to the tires of farming equipment for stability).
Calcium Chloride Powder TDS: