Cavendish established the proportions of the constituents of air, demonstrated the nature of water and its volumetric composition.
The gravimetric method can be substituted by the volumetric by introducing a solution of sodium sulphide of known strength into the ammoniacal filtrate.
The chemico-technical analysis of these products has until recently been confined to the volumetric determination of zinc by means of sodium sulphide (Schaffner's method).
The separation of copper from cadmium being difficult and laborious, and the volumetric estimation with potassium cyanide not practicable, it is not prudent to apply this method.
The volumetric process of Liebig, which depends on the formation of an insoluble compound of urea with mercuric nitrate, possesses no advantages and is troublesome to work.
In those cases where the pharmacist is asked to determine phosphoric acid quantitatively, the uranic-acetate method described in Sutton's "Volumetric Analysis" yields the most satisfactory results.
Even the forehead, as an index of the general volume of the brain, is of interest in researches relating to the volumetric growth of the head.
Of these measures, the two of chief importance are the stature and the weight, because they express the linear index and the volumetric measure of the entire body.
Hence it is necessary to reduce the volumetric measure--the weight--to a linear measure, which is done by extracting the cube root from the number representing the weight.
But alcohol not only diminishes the stature, but destroys the harmony of the different parts; that is, in the development of the body it arrests both the volumetric and the morphological growth.
The various dilutions of Trimethol Syrup were made with accurate volumetric pipettes, measuring flasks and distilled water was used as a diluent.
An instrument for ascertaining the strength of an indigo solution, as in volumetric analysis.
An instrument for the volumetric measurement of gases; -- so named because frequently used to determine the purity of the air.
The determination of the reducing substances can be effected by Salkovski's gravimetric method, but I prefer Moritz's volumetric method, on account of its simplicity.
Defn: An instrument for ascertaining the strength of an indigo solution, as in volumetric analysis.
Defn: An instrument for the volumetric measurement of gases; -- so named because frequently used to determine the purity of the air.
For the operations of volumetric analysis by liquids this is still done.
Volumetric analysis, possessing as it does many advantages over the gravimetric methods, has of late years been extensively developed.
Margueritte in 1846, and of iodine and sulphurous acid to the estimation of copper and many other substances by Robert Wilhelm Bunsen, marks an epoch in the early history of volumetric analysis.
This is the second law of Gay-Lussac; it extends the simplicity of the volumetric relations to compounds, and is of the same nature as that presented by the elements entering into mutual combination.
These questions for long occupied the minds of investigators, and were the motive for the most varied, exact, and accurate researches, which were chiefly directed to the study of the volumetric relations exhibited by ozone.
Conversely, the composition of water by weight may be deduced from the densities of hydrogen and oxygen, and the volumetric composition of water.
All the volumetric measurements have to be corrected for pressure, temperature, and moisture (Chapters I.
Consequently the volumetric composition of water is expressed in the following terms: Two volumes of hydrogen combine with one volume of oxygen to form two volumes of aqueous vapour.
The meter is a volumetric displacement one and is regulated by observing the number of pulsations per minute.
Another very generally applicablevolumetric method for bismuth has been proposed by Mr. Muir.
The quantitative estimation of antimony is best made by somevolumetric process, e.
A number of volumetric processes have been devised for the estimation of copper, but for the purposes of this work it is unnecessary to detail them.
If the bismuth precipitate is in small quantity, or if a number of estimations of bismuth are to be made, it is most convenient to use a volumetric process.
Koppeschaar's volumetric method= is more exact, but also more elaborate, than the one just described.
Volumetric Processes for the Estimation of Copper, 624 3.
When a great number of mercurial preparations are to be examined, a volumetric process is extremely convenient.
Volumetric Processes for the Estimation of Mercury.
Volumetric Processes for the Estimation of Copper.
Several other volumetric processes are fully described in works treating upon this branch of analysis.
The amount of ash, practically speaking, is the salt, but if there be any doubt as to its composition, the chlorine maybe estimated by a volumetric solution of nitrate of silver, and further examined.
In volumetric analysis the method of taking the readings of the burette is an operation of great importance, requiring considerable method and practice.
A graduated glass vessel employed in volumetric analysis for measuring liquids.
The formation of a precipitate would show the solution had undergone such a change, as to render it unfit for volumetric estimations.
For volumetric work this filtering is unnecessary.
The other is known as "Volhard's," and resembles in principle and method an ordinary volumetric process.
Unfortunately this titration serves simply to replace the gravimetric determination, and does not, as many volumetric processes do, lessen the necessity for a complete separation of any other metals which are present.
Chromates are reduced to chromic salts by the action of most reducing agents in the presence of an acid; and this property is used in assaying for the volumetric determination of ferrous iron, &c.
There is no dry assay for this substance, nor volumetric method; when the determination is required, it is carried out gravimetrically and, generally, by the following plan.
The chromates in solution are more stable than other similar oxidising agents, and consequently are generally used in the laboratory as one of the standard oxidising agents for volumetric analysis.
These three illustrations serve as types of the three chief classes of volumetric assays--titrometric, gasometric, and colorimetric.
According to Lewkowitsch, the results obtained by the volumetric method which assumes a combining weight of 346 for resin acids, are very likely to be high.
Wash into a 500 cubic centimeter volumetric flask and bring to the mark with distilled water.
Fehling's volumetric solution, suitable for both qualitative and quantitative purposes, is made as follows: Dissolve 34.
To perform the volumetric estimation, the standard solution is added to the liquid containing the alkaloid, until no more turbidity is produced.
The test solutions here given are those of the British Pharmacop[oe]ia, which are used for determining the strength of various Pharmacop[oe]ial preparations byvolumetric analysis.
Fill a burette with this solution and drop it cautiously in 1000 grain-measures of the volumetric solution of iodine until the brown colour is just discharged.
Volumetric solutions, before being used, should be shaken in order that they may be throughout of uniform strength.
In applying this table, as gas analyses may be reported either by weight or volume, there is given in Table 33[36] a method of changing from volumetric analysis to analysis by weight.
A final instance of the application of the solubility-product principle to the ordinary methods of analytical chemistry, may be taken from the field of quantitative, volumetric analysis.
Volumetric methods are more expeditious and require less apparatus.
The fire assay for copper ores was abandoned years ago and the electrolytic method took its place; this in turn is now largely replaced by volumetric methods.
There are several volumetric methods for assaying lead ores, but the best known is that based on the precipitation of lead by ammonium molybdate in an acetic acid solution.
The "dry" or fire assay for lead is largely used for the valuation of lead ores, although it is being gradually replaced by volumetric methods.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "volumetric" in a variety of sentences. We hope that you will now be able to make sentences using this word.
