A System of Instruction in Quantitative Chemical AnalysisJ. Wiley & son, 1871 - 637 pagina's |
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Overige edities - Alles bekijken
A System of Instruction in Quantitative Chemical Analysis C. Remigius Fresenius Volledige weergave - 1860 |
A System of Instruction in Quantitative Chemical Analysis C. Remigius Fresenius Volledige weergave - 1871 |
A System of Instruction in Quantitative Chemical Analysis Carl Remigius Fresenius Volledige weergave - 1860 |
Veelvoorkomende woorden en zinsdelen
accurate acid solution alumina ammonia amount analysis analyzed antimony apparatus arsenic acid baryta beaker binoxide bismuth boiling bromine bulb carbonate of ammonia carbonate of soda carbonic acid Chem chloride chloride of ammonium chloride of silver chloride of sodium chromate chromic acid cobalt compounds contains converted crucible cyanide decantation decomposed determined dilute dish dissolve dried dryness estimation evaporate excess filter filtrate flask fluid fused glass heat hydrate hydrochloric acid ignition insoluble in water iodide iodine Journ latter lime magnesia manganese mercury metallic method mixed mixture nickel nitric acid oxalic acid oxide oxide of copper oxygen permanganate phosphate phosphoric acid portion potassa potassium prakt precipitate present pure quantity residue salt separated sesquioxide of chromium sesquioxide of iron silicic acid soluble strontia substance sulphide of ammonium sulphuretted hydrogen sulphuric acid temperature teroxide tion uranium volatile volumetric wash water-bath weighed zinc
Populaire passages
Pagina 67 - ... free from inequalities of every description ; and into it is placed a second funnel made of exceedingly thin platinum-foil, and the sides of which possess exactly the same inclination as those of the glass funnel. An ordinary paper filter is then introduced into this compound funnel in the usual manner ; when carefully moistened and so adjusted that no airbubbles are visible between it and the glass, this filter, when filled with a liquid, will support the pressure of an extra atmosphere without...
Pagina 69 - ... is perfectly sufficient to allow of the passage of a continuous stream of water. In order to be able to produce the additional pressure of an atmosphere, the filtered liquid is received in a strong glass flask instead of in beakers*. This flask is closed by means of a doubly perforated caoutchouc cork, through one of the holes of which the neck of the glass funnel is passed to a depth of from 5 to 8 centimetres (tig.
Pagina 361 - If any thing remains undissolved, it is a portion of the ore undecomposed, and must be subjected again to the above operation. To weigh such a residue and deduct it from the ore first taken is not good, as it never possesses the composition of the original substance.
Pagina 362 - ... has redissolved and the fluid is decidedly acid. Allow it to stand at least for 24 hours in a warm place, take out a portion of the supernatant fluid with a pipette, mix it with more nitrite of potassa and observe whether a further precipitation takes place in this after long standing.