Inorganic Quantitative AnalysisCentury Company, 1925 - 493 pages |
From inside the book
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Page vii
... greater thoroughness than does any other similar textbook . The customary division of the subject into gravimetric and volumetric methods on the basis of the technique employed has been aban- doned , and in its place the development of ...
... greater thoroughness than does any other similar textbook . The customary division of the subject into gravimetric and volumetric methods on the basis of the technique employed has been aban- doned , and in its place the development of ...
Page 5
... greater difficulty of separations in contradistinction to determinations , it seems preferable for pedagogical reasons to treat of them in inverse order . We shall therefore begin by taking up simple determinations in which interfering ...
... greater difficulty of separations in contradistinction to determinations , it seems preferable for pedagogical reasons to treat of them in inverse order . We shall therefore begin by taking up simple determinations in which interfering ...
Page 6
... greater number of methods show a less precision than this , a few even showing such a poor precision as twenty to thirty parts per thousand . It must also be mentioned in this connection that the precision obtainable by any given method ...
... greater number of methods show a less precision than this , a few even showing such a poor precision as twenty to thirty parts per thousand . It must also be mentioned in this connection that the precision obtainable by any given method ...
Page 38
... greater the number of portions that must be taken and the greater their relative size . 1 Thus to cite a few illustrations : minerals , metals , alloys and other products which have solidified from the molten state almost invariably ...
... greater the number of portions that must be taken and the greater their relative size . 1 Thus to cite a few illustrations : minerals , metals , alloys and other products which have solidified from the molten state almost invariably ...
Page 39
... greater than 1/20 is ever employed . The sample so collected will approximate very closely in its average composition to that of the lot , but , like the lot , it will be non - homogeneous . It , in turn , might serve as a source for a ...
... greater than 1/20 is ever employed . The sample so collected will approximate very closely in its average composition to that of the lot , but , like the lot , it will be non - homogeneous . It , in turn , might serve as a source for a ...
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Common terms and phrases
acetate added alcohol alkaline alloy aluminum ammonium hydroxide ammonium phosphate amount analysis anode barium beaker burette c.c. of water calcium calcium oxalate calculate carbon dioxide casserole cathode Chem chloride concentration of hydrogen containing copper deposited determination dilute dissolved drops electrode electrolyte end point equilibrium error evaporation excess Fe+++ ferric ferrous filter paper filtrate flask funnel Gooch crucible grams H₂O heat hot water hydrogen ion hydrogen sulphide ignited insoluble iodine iron magnesium manganese dioxide manganous ion metal method methyl orange mixture molar ammonium hydroxide molar hydrochloric acid molar nitric acid molar solution molar sulphuric acid nitric acid obtained overvoltage oxalate oxide permanganate ion permanganate solution phosphate phosphorus platinum portion potassium potential precipitate quantitative reagent reduced residue salt sample silica silver sodium carbonate sodium hydroxide solubility product standard solution substance sulphate sulphuric acid temperature tion titration tube volts volume wash watch-glass weight
Popular passages
Page 16 - SYSTEMATIC HANDBOOK OF VOLUMETRIC ANALYSIS ; or, the Quantitative Estimation, of Chemical Substances by Measure, applied to Liquids, Solids, and Gases. Adapted to...
Page 320 - KMnO4 solution, stirring the liquid vigorously and continuously. The permanganate must not be added more rapidly than 10 to 15 cc per minute and the last 0.5 to 1 cc must be added dropwise with particular care to" allow each drop to be fully decolorized before the next is introduced.
Page 75 - Archimedes stated that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid. By means of this principle, known as Archimedes' principle, he determined that a crown was not pure gold.
Page vii - PREFACE IT has been the aim of the author in preparing this work to...
Page 96 - The specific gravity of a gas may be defined as the ratio of the weight of a given volume of gas to the weight of an equal volume of air measured at the same temperature and pressure. The specific gravity of a dry gas referred to dry air is, for all practical purposes, the same for any temperature.
Page 321 - ... cc. must be added dropwise, with particular care to allow each drop to be fully decolorized before the next is introduced. The excess of permanganate used to cause an end point color must be estimated by matching the color in another beaker containing the same bulk of acid and hot water. The temperature of the solution should not be below 60° C.
Page 328 - The test is most delicate when the flask is provided with a two-hole stopper fitted with inlet and outlet tubes of glass. If the outside opening of the outlet tube is small the concentration of the escaping steam and gas contributes to the sharpness of the test. Because of the possibility of the introduction of organic matter from the stopper by the action of the hot steam, it is safer to employ a cap of platinum foil with two holes, one for the gas entry tube, the other for its escape in a concentrated...
Page 122 - The capacity mark on transfer pipettes must not be more than 6 cm from the bulb. The outlet of any transfer pipette must be of such size that the free outflow shall last not more than one minute and not less than the following for the respective sizes: Capacity...
Page 329 - ... *The direct use of a solution of sulphur dioxide or of an alkali sulphite is inadmissible unless these have been freshly prepared, since after a lapse of time they contain other oxidizable bodies than sulphurous acid or a sulphite. The sulphur dioxide is best obtained as wanted by heating a flask containing a solution of sulphur dioxide, or of a sulphite to which sulphuric acid has been added. The expulsion of the...
Page 277 - After standing overnight in the corked flask the insoluble matter is collected on the smallest possible filter and washed with more of the above mixture of alcohol and ether. After drying, a few cubic centimeters of hot water are passed through the filter, on which may remain a few tenths of a milligram of residue, which does not usually contain any lime or other alkaline earth and whose weight is therefore to be deducted from that of the lime, unless it can be shown that it is derived from...