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Books Bücher 1 - 8 von 8 in If, however, the solution in acid be heated, it becomes black and gives ofl'sulphurous...
" If, however, the solution in acid be heated, it becomes black and gives ofl'sulphurous acid in abundance, the colouring matter being decomposed. When the substance is dissolved in boiling water to which a little sulphuric acid has been added, and the... "
Memoirs and Proceedings - Manchester Literary and Philosophical Society - Seite 125
von Manchester Literary and Philosophical Society - 1860
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The Chemical Gazette, Band 17

1859
...yellow flocks. If, however, the solution in acid be heated, it becomes black and gives ofl'sulphurous acid in abundance, the colouring matter being decomposed....liquid, which, on being boiled, evolves nitrous acid, and becomes pale yellow ; the liquid on evaporation yielding a large quantity of oxalic acid. When...
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Hand-book of Chemistry, Band 13

Leopold Gmelin - 1859
...calcium-bath. (Christison.) 3. When the fresh flowers (or seeds) of hemlock are exhausted with hot water to which a little sulphuric acid has been added, and the extract supersaturated with lime or hydrate of potash and distilled as rapidly as possible, a strongly...
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Hand-book of Chemistry, Band 13

Leopold Gmelin - 1859
...calcium-bath. (Christison.) 3. When the fresh flowers (or seeds) of hemlock are exhausted with hot water to which a little sulphuric acid has been added, and the extract supersaturated with lime or hydrate of potash and distilled as rapidly as possible, a strongly...
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Memoirs of the Literary and Philosophical Society of Manchester

1860
...filtered liquid again deposits, on cooling and standing, a mass of crystals, which, after being collected on a filter and washed with cold water, are dissolved...strength dissolves it even in the cold, forming a dark orange- coloured liquid, which, on being boiled, evolves nitrous acid, and becomes pale yellow j the...
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A Dictionary of chemistry and the allied branches of other sciences, Band 2

1864
...ehloride-of-calcium bath. (Christison.) 3. When the fresh flowers (or seeds) of hemlock are exhausted with hot water to which a little sulphuric acid has been added, and the extract supersaturated with lime or hydrate of potassium and distilled as rapidly as possible, a strongly...
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A Dictionary of Chemistry and the Allied Branches of Other Sciences ...

Henry Watts - 1870
...chloride-of-calcium bath. (Christison.) 3. When the fresh flowers (or seeds) of hemlock are exhausted with hot water to which a little sulphuric acid has been added, and the extract supersaturated with lime or hydrate of potassium and distilled as rapidly as possible, a strongly...
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A Dictionary of Chemistry and the Allied Branches of Other Sciences: Third ...

Henry Watts - 1882
...chloride-of-calcium bath. (Christison.) 3. When the fresh flowers (or seeds) of hemlock are exhausted with hot water to which a little sulphuric acid has been added, and the extract supersaturated with lime or hydrate of potassium and distilled as rapidly as possible, a strongly...
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Chemical Gazette: Or, Journal of Practical Chemistry, in All Its ..., Band 17

William Francis, Henry Croft - 1859
...sulphurous acid in abundance, the colouring matter being decomposed. When the substance is di -solved in boiling water to which a little sulphuric acid...liquid, which, on being boiled, evolves nitrous acid, and becomes pale yellow ; the liquid on evaporation yielding a large quantity of oxalic acid. When...
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