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As salt—or broken down into sodium and chlorine—it goes into gargles, textiles, and rocket fuels; cosmetics, paints, pharmaceuticals, and photography; soaps, dyes, ceramics, batteries, adhesives, and explosives.
The freezing point of a saturate solution—21 degrees Centigrade lower than that of fresh water—makes rock salt an excellent refrigerant, snow melter, and freezer of ice cream. And liquid sodium cools nuclear reactors.
May Store Wastes
The wastes from nuclear reactors may ultimately be stored in salt beds deep beneath the surface of the earth. Their dryness, ability to withstand earthquakes, and a melting point of 800 degrees make salt deposits the safest nuclear graveyards, scientists contend.
Salt already serves as a
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