What is "methods"

Usage examples of "methods".

The methods of assaying are mainly those of analytical chemistry, and are limited by various practical considerations to the determination of the constituents of a small parcel, which is frequently only a few grains, and rarely more than a few ounces, in weight.

The general methods of working resemble those of ordinary chemical analysis, and their successful working is greatly helped by a knowledge of, at any rate, those compounds of the metal which enable it to be separated, and of those which are the most convenient forms in which it can be weighed.

The more strictly chemical methods are rendered troublesome by the oxide being insoluble in acids, resembling in this respect the gangue with which it is associated.

It is not so delicate as most other colorimetric methods, but nevertheless is a very useful one.

In these calculations decimals are freely employed, and students should make themselves familiar with the methods of using them.

Knowing that only certain bodies are present, it is evident that the number of separations can be reduced, and that simple methods can be devised for arriving at the results sought for.

The usual methods of supporting the funnel during filtration are shown in fig.

There are several other methods which may be used, but on the whole those with the specific gravity bottle are most convenient.

Unfortunately, using both methods and accepting the difference in the results as a measure of the quantity of zinc present, or at any rate of the zinc present as cyanide, is not satisfactory.

There are two or three methods of dry assay for iron, but they are not only inexact, but more troublesome than the wet methods, and need not be further considered.

Both methods give accurate results and are good examples of volumetric methods.

He may then proceed to experiment on the various methods of reduction.

In a series of experiments on the various methods of reduction, the following results were got.

In the fusion methods the ore must be very finely powdered, well mixed with the fluxes, and subjected to a prolonged fusion in a platinum vessel at a high temperature.

Oxidation is performed with greater convenience by wet methods, using reagents, such as nitric acid, which contain a large proportion of oxygen loosely held.