Tuz Gölü (Salt Lake) is located in Central Anatolia, between Ankara and Konya, and is also known as the Koç Hisar Lake; it coves and area of 1620 square km.. Due to the condinental climate, summers in the region are hot and dry and the rivers feeding the lake dry up – so its depth does not exceed 1m.. The NaCI (Sodium Chloride) ratio of the lake is close to 100 percent. It is the world’s most saline lake and two-thirds of the area covered by it dries up in the summer leaving a thik layer of salt. This natural salt is known as rock salt / NaCI, and is separated from various elements, and refined, and meets the needs of the country. Narrow gauge rail lines are used to move the sald blocks. The annual production is approximately 100 million tonnes.
The salt concentration in the lake is 2, 163 grams/ cm3 , it is liquefied at 800 and evaporates at 1413 degrees. The lake, its closed basin, and the surrounding area is a conservation area. 27 percent of Turkey’s need for salt for food, 51 percent industrial raw materials, and the remaining 22 percent is used in other areas. The vital human daily consumption neccessary is 15 gr. of salt.