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into convulsions, paralysis, death. Blood cells in a saltfree fluid burst.
The salt that keeps man alive does the same for industry as the most essential of all raw materials, reports Gordon Young in the September National Geographic.
Only a pinch of salt, perhaps S percent of the world’s annual production, ends up as a seasoning on the dinner table. Most of it pours into chemical plants where it leads the give major raw materials used by industry: salt, sulfur, limestone, coal, and petroleum.
Salt has some 14,000 industrial uses, more than any other mineral.
Salt pickles cucumbers—and metals; helps pack meat, can vegetables, cure leather, make glass, bread, butter, cheese, rubber, wood pulp.
93.3%