Iridium tetrachloride, IrC1 41 is obtained by dissolving the finely divided metal in aqua regia; by dissolving the hydroxide in hydrochloric acid; and by digesting the hydrated sesquichloride with nitric acid. [Please select]
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_--The antidote for arsenic is a solution of hydrated oxid of iron in water. [Please select]
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_--Weigh out the lime, 12 pounds (or hydrated lime, 16 pounds), and sulphur, 24 pounds. [Please select]
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The lime-sulphur dip is made in the proportion of 12 pounds of unslaked lime (or 16 pounds of commercial hydrated lime--not air-slaked lime), 24 pounds of flowers of sulphur, and 100 gallons of water. [Please select]
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This alkali cellulose, however, is not a stable body; by washing with water the alkali is removed, and hydrated cellulose is obtained, which has the formula C{6}H{10}O{5}H{2}O. [Please select]
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