Calcium nitrate

Production and Reactivity: Norgessalpeter synthesized in Notodden, Norway in 1905 by the Birkeland–Eyde process. Most of the world’s calcium nitrate is made in Porsgrunn. Produced by treating limestone with nitric acid and neutralization with ammonia. Used to control certain plant diseases like bitter pit and cork spot in apple trees. Also sold as CalUrea. Waste Water Treatment: Calcium nitrate used in waste water preconditioning for odor emission prevention. Establishes an anoxic biology in the waste water system. Inhibits hydrogen sulfide formation by stopping sulfate metabolism. Consumes organic matter to prevent anaerobic conditions and odor emissions. Applicable for surplus sludge treatment. Concrete: Used in set accelerating concrete admixtures. Calcium ion accelerates formation of calcium hydroxide for setting. Nitrate ion leads to iron hydroxide formation reducing concrete corrosion. Used in cold weather concreting agents and some plasticizers. Enhances precipitation and setting of concrete. Latex Coagulant: Common coagulant in latex production, especially in dipping processes. Part of the dipping bath solution. Breaks up latex stabilization leading to coagulation. Used in forming thin film on formers for latex coagulation. Facilitates coagulation of latex on formers. Cold Packs: Dissolution of calcium nitrate tetrahydrate is highly endothermic (cooling). Used in regenerable cold packs for its cooling properties. Provides cooling effect upon dissolution. Utilized for cold therapy applications. Offers a cooling sensation when dissolved.