murulidhara Posted August 4, 2008 Posted August 4, 2008 What is rock salt? In what way it is superior / inferior to common salt? Can it be used in place of common salt?
insane_alien Posted August 4, 2008 Posted August 4, 2008 rock salt is sodium chloride formed from evapourating lakes. it typically contains various impurities leading to it looking like a rock of a dirty bit of salt. there is no inferior/superior thing here as that would have to depend on the intended usage. it is generally not used in place of table salt as the impurities can make it inedible.
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