<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Brine is a high - concentration solution of salt (usually sodium chloride) in water . In different contexts, brine may refer to salt solutions ranging from about 3.5% (a typical concentration of seawater, on the lower end of solutions used for brining foods) up to about 26% (a typical saturated solution, depending on temperature). Lower levels of concentration are called by different names: fresh water, brackish water and saline water . </P> <P> Brine naturally occurs on Earth's surface (salt lakes), crust, and within brine pools on ocean bottom . High - concentration brine lakes typically emerge due to evaporation of ground saline water on high ambient temperatures . Brine is used for food processing and cooking (pickling and brining), for de-icing of roads and other structures, and in a number of technological processes . It is also a by - product of many industrial processes, such as desalination, and may pose an environmental risk due to its corrosive and toxic effects, so it requires wastewater treatment for proper disposal . </P>

In a solution of brine what is the salt