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What is barium sulfite?

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Quick Answer

Barium sulfite, also known as barium sulfonate or barium(2+) sulfite, is the barium salt of the sulfurous acid H2SO3. Its molecular formula is BaSO3, and its molar mass is 217.39 grams per mol. Its density is 4.44 grams per cubic centimeter.

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Full Answer

Barium sulfite is used in the production of paper due to its white color. It is a toxic substance, as are many other chemicals containing barium. Its solubility in water is 0.0011 grams per 100 milliliters, and it does not dissolve in ethanol. It can be obtained from the reaction of sulfur dioxide, SO2, with either barium oxide, BaO, or barium hydroxide, Ba(OH)2.

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