Particles which will pass a 10-mesh sieve, but are retained by one of 20 meshes to the inch, are most satisfactory.
The strength of this solution (and hence its value for the reaction in question) is accurately known, and the volume employed serves, therefore, as a measure of the substance acted upon.
Considering only these compounds, and writing the formulas in such a way as to show the oxides of the elements in each, the equation becomes: K{2}O.
If the precipitate has dissolved in this quantity of acid, add two drops of concentrated sulphuric acid, and heat very slowly (always under the hood) until all the liquid has evaporated, finally igniting to redness.
The addition of concentrated sulphuric acid to this solution reduces its vapor pressure so far that very little water is carried on by the air current, and this slight amount is absorbed by the calcium chloride in (E).
They also dissolve in concentrated sulphuric acid, and the penta-nitrate in nitric acid at about 80° or 90° C.
It dissolves in concentrated sulphuric acid to a clear yellow solution.
Davy in 1815 by the action of concentrated sulphuric acid on potassium chlorate.
Similarly, phosphorus can be burned under water by covering it with a little potassium chlorate and running in a thin stream of concentrated sulphuric acid (see papers by Bray, Zeit.
By the action of concentrated sulphuric acid it is transformed into chromium ammonium sulphate.
The suspected alkaloid is dissolved in a little strong hydrochloric acid, and then a drop ofconcentrated sulphuric acid is added, and the mixture heated for a little time from 100 deg.
If concentrated sulphuric acid be digested on morphine for twelve to fifteen hours (or heated for half an hour at 100 deg.
From ferrocyanide of potassium in fine powder, and 8 or 10 times its weight of concentrated sulphuric acid, heated together in a glass retort.
If required dry, the gas must be passed over fragments of fused chloride of calcium, placed in a large tube, or through a small quantity of concentrated sulphuric acid, and collected by displacement or over mercury.
One part of the best indigo, passed through a silk sieve, is to be dissolved in nine parts of concentrated sulphuric acid, by the aid of a water-bath heat applied for six hours.
Dihydroxybenzene, resorcinol, is also easily sulphonated by concentrated sulphuric acid, the brownish-coloured sulphonic acid being easily soluble in water.
Orfila either dissolves the matter in aqua regia, and passes a stream of chlorine through the liquid, or he carbonises it by means of concentrated sulphuric acid, in close vessels.
Defn: A substance formed from the hematin of blood, by removal of the iron through the action of concentrated sulphuric acid.
Defn: A colorless, gaseous hydrocarbon, C2H4, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol.
Saxon blue (Dyeing), a deep blue liquid used in dyeing, and obtained by dissolving indigo in concentrated sulphuric acid.
A substance formed from the hematin of blood, by removal of the iron through the action of concentrated sulphuric acid.
An ink of the following composition has been made the subject of experiment: "Concentrated sulphuric acid, deeply colored with indigo .
They may be prepared by the action of concentrated sulphuric acid on the alcohols, alkyl sulphuric acids being first formed, which yield ethers on heating with alcohols.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "concentrated sulphuric" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
