CASO® TEC SOLUTION is a synthetic calcium chloride of mineral origin intended for technical uses. It is manufactured by Solvay's Process for Soda-Ash starting to natural raw materials such as salt brine and limestone. For technical applications, the major uses of calcium chloride do not require high chemical purity. CASO® TEC SOLUTION is a high purity aqueous filtered solution and it is free of materials that are harmful to the environment. It contains a very low levels of heavy metals and organic compounds and is relatively innocuous. Total alkali chlorides are the main impurities of commercial calcium chloride. Depending on storage temperature, CaCl2 brines can crystallize accordingly with their concentration. If there is any risk that the storage temperature will be lower than the crystallization point, storage and handling equipment must be designed to maintain the temperature of the product over the limit indicated (see Chemical-Physical properties). Direct use of calcium chloride to animal or human foods requires adequate grades of material (Food or Feed Grades)