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Carbonate of Soda

The car- together 1 pound dried carbonate of soda and bonate of soda of commerce is either pre- 10 ounces flowers of sulphur, and slowly heat pared by lixiviating the ashes of sea-weed, or the powder in a porcelain dish until the sulphur melts; stir freely, to expose it to the at-tate of potassa, and distill; binacetate of mosphere, until the incandescence flags, then ammonia passes over into the receiver, as an dissolve the mass in water, and immediately oily liquid, which, on cooling, forms a radiated boil the filtered liquid with some flowers of sulphur; lastly, carefully concentrate the solution for crystallization. (Cooley.) It may also be prepard by dissolving 8 parts carbonate of soda in 16 parts water; add 1 part sublimed sulphur, and pass sulphurous acid gas, in excess, into the solution; boil the liquid in a glass matrass for a few minutes, filter, gently evaporate the filtrate to its volume, and set it aside in a cool place to crystallize. (Paris Codex.)