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Sodium bicarbonate (IUPAC name: sodium hydrogen carbonate) is a chemical compound with the formula NaHCO3. It is a salt composed of sodium ions and bicarbonate ions. Sodium bicarbonate is a white solid that is crystalline but often appears as a fine powder. It has a slightly salty, alkaline taste resembling that of washing soda (sodium carbonate). The natural mineral form is nahcolite. It is a component of the mineral natron and is found dissolved in many mineral springs.
0. Sodium does not exist simply as a metal in nature-it's too reactive, so it is found as a compound. Sodium is the sixth most abundant element in the earth's crust at about 2.6 - 3.0%.The most common mineral is rock salt (sodium chloride, NaCl, or halite), but it occurs in many other minerals including sodium borate (borax), sodium carbonate (soda), sodium nitrate (Chile saltpetre). and sodium sulphate (thenardite).more. answers.yahoo.com.. Sodium does not exist simply as a metal in nature-it's too reactive, so it is found as a compound. Sodium is the sixth most abundant element in the earth's crust at about 2.6 - 3.0%.