They do not possess basic properties; the halogen in the chlorine compounds is readily replaced by oxygen, and the oxides produced behave like basic oxides.
Evidence for Oxides of Nitrogen in the Atmosphere of Mars.
This finding is significant inasmuch as the presence of nitrogen oxides in the Martian atmosphere has been cited as evidence for the nonexistence of plants on that planet by Kiess et al.
One of the three important oxides of iron containing no water, and richer in iron than hematite.
The wonderful coloring is due to iron oxides set free during weathering of the lava rock.
One of the common and important iron oxides with less iron than magnetite and no water as has limonite.
The iron and manganese oxides are mined in considerable tonnage as a flux.
Certain constituents of the original rock are leached out and carried away, leaving other constituents, asoxides and hydrates, in sufficiently large percentage in the mass to be commercially available.
In the oxide zone the zinc carbonate is associated with oxides and carbonates of various metals, including those of lead, copper, iron, and manganese.
The presence in the outcrop of dark manganese oxides associated with vein quartz sometimes indicates the presence below of copper and zinc and other minerals, as at Butte.
The copper oxides and carbonates are in places gathered into rounded concretions called "boleos" (balls).
This has been due largely to the fact that the iron and manganese oxides effectively stain and mask the zinc carbonate.
This graphite is considered to be of inorganic origin, formed by the breaking up of gaseousoxides of carbon in the original magma of the pegmatites.
In New York the emery deposits are segregations of aluminum and iron oxides in norite (a basic igneous rock).
In the more chronic cases the salts of silver, copper, and zinc are really very useful, especially the oxides of silver and zinc; and of these the former is more efficient.
The steel should have at least one polished face so that this film of oxides may be seen.
The slag changes from black to white as the metallic oxides are reduced by these deoxidizing additions and the reduced metals return to the bath.
If a piece of polished steel is heated in an ordinary furnace, a thin film of oxides will form on its surface.
Coloured glass is obtained by a mixture of metallic oxides whilst in a state of fusion.
These colours, true enamels, are the product of metallic oxides combined with vitreous compounds called fluxes.
The monoxide is formed when the metal burns in air, but is usually prepared by the ignition of the nitrate, oxygen and oxides of nitrogen being liberated.
The nature of the glaze is made evident by the hues assumed by the metallic oxidesemployed as colorants.
The oxides must be diluted with white clay and used rather thin.
The alkaline earths, theoxides of calcium and barium.
Water will combine with a number of oxides very much in the same manner and sometimes with such vigor, that considerable heat is evolved, as in the slaking of lime (‹exp.
Eight forms of electric lamps using infusible earthy oxides and brought to high incandescence in vacuo by high potential current of several thousand volts; same character as impingement of X-rays on object in bulb.
Edison found that comparatively little was known by manufacturing chemists about nickel and iron oxides of the high grade and purity he required.
Metallic powder of iron and nickel, or even oxides of these metals, prepared in the ordinary way, are not chemically active in a sufficient degree to work in a battery.
Sidenote: Metallic Oxides] Metallic oxides are used to stain or color clear glazes, while underglaze colors are ordinarily used for matts.
Why will iron and copper oxides produce a yellow green stain?
It is possible to use oxides as well as underglaze colors for staining matt glazes.
Certain oxides are weak coloring agents and require larger amounts of oxide to color the glaze perceptibly.
In the lake colors, if they are good and strong, the coloring matter bound to the metallic oxides is equal to one-half of the whole weight of the color, therefore they can be prepared as good marbling colors without adding anything but gall.
These are all heavy metallicoxides and good colors.
The most important composite parts of colors for marbling are certain substances, among which hydrates of argillaceous earths, tin and lead oxides and sulphate of barium are named as the best.
The general idea, that light colors are the best, is erroneous, even heavyoxides of metal being excellent colors.
Exclusive of mineral colors several organic colors came into use, the most being applied in the dyeing establishments as they were bodiless colors and at that time the art of binding them to metallic oxides was unknown.
Now as the sulphur and oxides of zinc and antimony could furnish no earthy matter, no other source remains but the water with which the plants were fed, and the atmosphere with which they were surrounded.
So that instead of one or two oxides of every metal, an infinite number of oxides of each metal exist.
Antimony forms three oxides: now it is the protoxide alone that is useful in medicine, and that enters into the composition of tartar-emetic; the other two oxides are inert, or nearly so.
His notions respecting the antimonial preparations best fitted to form it, are not accurate: nor, indeed, could they be expected to be so, till the nature and properties of the different oxides of antimony were accurately known.
These oxideshave a yellow colour, and give out the surplus oxygen, and are brought back to the state of potash and soda when they are plunged into water.
The muriatic acid solution is freed from silica, and afterwards from barytes, and all the earths and oxides which it contains, by means of carbonate of ammonia.
Accordingly the table of the composition of the metallic oxides which Lavoisier has drawn up is so very defective, that it is not worth while to transcribe it.
We have the analysis of cerium by Hisinger and Berzelius, together with an account of the chemical characters of the two oxides of cerium.
He then planted these different seeds in flowers of sulphur, and in oxides of antimony and zinc, watering them regularly with distilled water.
A mixture of borax and carbonate of soda upon charcoal in general enables us to reduce the metallic oxides to the state of metals, provided we understand the way of applying the flame properly.
A very small proportion of some substances--notably the oxides of sodium and potassium--will greatly alter the behaviour of true clay when heated and will produce an impervious mass in place of a porous one.
Moreover, even with the china clays or kaolins a small proportion of alkalies, lime and other oxides enter into solution and a number of minerals analogous to clay, but quite distinct from it, are also decomposed and dissolved.
Thus Richter found that the refractoriness of clay is influenced by certain oxides in the following order: magnesia, lime, ferrous oxide, soda and potash, but this only applies to clays containing less than 3 per cent.
To be of value, a china clay or kaolin must be as white as possible and must be free from more than an insignificant percentage of metallic oxides which will produce a colour when the clay is heated to bright redness.
When heated with silica or with various metallic oxides it fuses more readily owing to the formation of silicates.
If the material is to be used in the manufacture of paper, paint or ultra-marine, these colour-producing oxides are of less importance providing that the clay is sufficiently white in its commercial state.
In the construction of mantles at the present time, while the principle of their use remains the same as that of the lime-light, lime itself is not used, the oxides of certain other metals having proved better adapted for the purpose.
Its mineralogy is scanty, being nearly confined, so far as observed, to some common silicious minerals, and traces of argillaceous and magnetic oxides of iron.
Hardly a mass of the loose rock is without some trace of the metal, or its oxides or salts.
The oxides in the thoroughly roasted ore will not amalgamate with mercury, and are not acted on by chlorine or cyanogen.
To apply it on new plates use somewhat dilute nitric acid applied with a swab to free the surface of the copper from oxides or impurities, then rub the ball of amalgam over the surface, using some little force.
What is left is either iron oxide, “gossan,” or the oxides of the other metals.
Silica, Alumina, and the Oxidesof Iron and Titanium, with a little Potass.
According to their constitution, these may yield one or many colours with the various metallic oxides employed, and they are used for cotton as well as for wool and silk.
Adopting this hypothesis, it may be asked whether the river holds the oxides suspended like sand and other earthy substances, or whether they are found in a state of chemical solution.
The colours used by the Maypures are the oxides of iron and manganese, and particularly the yellow and red ochres that are found in the hollows of sandstone.
Coloured stripes, which no doubt owe their black tint to the oxides of iron and manganese, seem to justify this conjecture.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "oxides" in a variety of sentences. We hope that you will now be able to make sentences using this word.
