Potassium iridium sesquichloride, K 3 IrC1 6.3H 2 O, is obtained by passing sulphur dioxide into a suspension of potassium chloriridate in water until all dissolves, and then adding potassium carbonate to the solution (C. Claus, Jour. [Please select]
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The most important are carbonate of soda, potash, and cyanide of potassium. [Please select]
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Boiler scale is composed of the carbonate or the sulphate of lime. [Please select]
These consist of sodium carbonate, sodium chloride or common salt and sometimes lime. [Please select]
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Large crystals of sal soda containing but 37% sodium carbonate are formed. [Please select]
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Potassium carbonate is not extensively used in the manufacture of soap. [Please select]
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Lime should not be slaked too long before using, as it absorbs carbonic acid from the atmosphere, whereby carbonate of lime is formed, and this is useless for liming cloth. [Please select]
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5° hardness can be employed if it is corrected with acetic acid, thereby converting the carbonate of lime into acetate of lime. [Please select]
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