A Compendious Manual of Qualitative Chemical Analysis
A Compendious Manual of Qualitative Chemical Analysis
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In our eReader you can find the full English version of the book. Read A Compendious Manual of Qualitative Chemical Analysis Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Compendious Manual of Qualitative Chemical Analysis
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CYANIDES. 75 and hyposulphites alike ; but in the latter case a deposition of sulphur makes the liquor turbid. If only one of these gases were present, the effervescence and the odor, or the absence of odor, would identify it ; but when mixtures are to be dealt with, further means of identification are necessary. 57* Carbonates. To prove the presence of carbonic acid gas, when effervescence has occurred, add chlorhydric acid, little by little, to the effervescing solution, until the acid is dec...idedly in excess ; meanwhile keep the mouth of the test- tube loosely closed with the thumb to promote the accumula- tion of the gas evolved. When the tube is supposed to be fall, carefully decant the gas into a second test-tube contain- ing a teaspoonful of lime-water (App. , 41), taking care not to allow any of the liquid to pass over with the gas. Mix the lime-water and the gas in the second test-tube by thorough shaking. A white precipitate of carbonate of cal- cium will be produced, if the gas tested is, or contains, car- bonic acid.
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You can find similar books in the "Read Also" column, or choose other free books by Eliot Charles William to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
CYANIDES. 75 and hyposulphites alike ; but in the latter case a deposition of sulphur makes the liquor turbid. If only one of these gases were present, the effervescence and the odor, or the absence of odor, would identify it ; but when mixtures are to be dealt with, further means of identification are necessary. 57* Carbonates. To prove the presence of carbonic acid gas, when effervescence has occurred, add chlorhydric acid, little by little, to the effervescing solution, until the acid is dec...idedly in excess ; meanwhile keep the mouth of the test- tube loosely closed with the thumb to promote the accumula- tion of the gas evolved. When the tube is supposed to be fall, carefully decant the gas into a second test-tube contain- ing a teaspoonful of lime-water (App. , 41), taking care not to allow any of the liquid to pass over with the gas. Mix the lime-water and the gas in the second test-tube by thorough shaking. A white precipitate of carbonate of cal- cium will be produced, if the gas tested is, or contains, car- bonic acid.
What to read after A Compendious Manual of Qualitative Chemical Analysis?
You can find similar books in the "Read Also" column, or choose other free books by Eliot Charles William to read onlineMoreLess
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