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(1) Highly mineralized natural waters in lagoons, salt lakes, reservoirs, and subterranean waters.
(2) Aqueous sodium chloride solutions used in food preserving.
(3) Aqueous solutions of various salts, for example, calcium chloride and magnesium chloride, that have low freezing points. These solutions act as cold conductors between refrigerators and objects being chilled.
(4) Mixtures composed of two or more solid (or solid and liquid) substances that bring about a decrease in temperature when mixed; this decrease is the result of heat absorption upon melting or dissolving.
the water in lagoons, salt lakes, and reservoirs that is in the form of a saturated solution. The brine found in lakes is grouped according to its chemical composition into carbonate brine, sulfate brine, and chloride brine. The concentration and composition of brines vary, depending on the hydrometeorological conditions during different seasons of the year and over the course of many years. Different chemical processes are constantly taking place in brine and result in a change in its salt composition. Brine is used for baths at pelotherapy resorts either as an independent treatment or together with pelotherapy.