In the oxidation flame borax dissolves the sesquioxide of chromium slowly to a yellow bead (chromic acid) which is yellowish green when cold.
If the metallic antimony contains sulphide of antimony, there is a corresponding portion of antimonious acid produced, which remains as a white sublimate after the sesquioxide is removed.
Sesquioxide of chromium fuses with carbonate of soda upon platinum foil to a brown or yellow bead, which, upon cooling, appears of a lighter color and transparent (chromate of sodium).
If to this bead sesquioxide of iron is added in proper proportion, the sesquioxide loses its property of coloring the bead, but of course an excess of the iron salt will communicate to the bead its own characteristic color.
Sesquioxide of antimony melts easily, and sublimes as a white vapor.
A part of the salts of the sesquioxide of antimony are decomposed by ignition.
It is decomposed intosesquioxide and oxygen when heated.
The sesquioxide is the base of some salts--for instance, the tartar emetic.
If strontia or its compounds are fused with a green bead of carbonate of soda and sesquioxide of manganese, as described under the head of baryta, a bead of a brown, brownish-green, or dark grey color is produced.
Woehler reduced the sesquioxide by zinc, and obtained a shining green powder of specific gravity 6.
Various other oxides of chromium, intermediate in composition between the sesquioxideand trioxide, have been described, namely chromium dioxide, Cr2O3.
Gaseous ammonia passed over the oxide reduces it to the sesquioxide with formation of nitrogen and water.
Chromium sesquioxide is a basic oxide, although like alumina it acts as an acid-forming oxide towards strong bases, forming salts called chromites.
The chromites may be looked upon as salts of chromium sesquioxide with other basic oxides, the most important being chromite (q.
The residue is ignited in a crucible, boiled with water, and dried; it then consists of a mixture of sesquioxide of iron and a combination of oxide of iridium with sodium hydrate.
It is usually coloured with a little vermilion or rouge (sesquioxide of iron), but it possesses an agreeable colour without it, 2.
Purple of Cassius is generally supposed to be a combination of oxide of gold and sesquioxide of tin, in which the latter acts as an acid.
An easier method is by passing dry chlorine over the sesquioxide of vanadium.
Sesquioxide of iron and extract of hemlock, of each 1 dr.
According to Fuchs, a solution of the sesquioxide of tin in muriatic acid, or of the sesquichloride in water, serves the same purpose, when dropped into a very dilute solution of gold.
The plumbeous suroxide of Berzelius, the sesquioxide of some British chemists, is the well-known pigment called RED LEAD or minium.
Defn: A salt derived from a sesquioxide base, or made up on the proportions of a sesqui compound.
Spanish brown, a species of earth used in painting, having a dark reddish brown color, due to the presence of sesquioxide of iron.
Prepared chalk, coloured with a little sesquioxide of iron or rose pink, and passed through a sieve.
This confection is an agreeable tonic and stomachic; it is much used as an adjunct to bitter and purgative powders, and as a vehicle for the sesquioxide of iron.
From confection of orange and sesquioxide of iron (Ph.
It differs from the other animal principles in containing, as an essential ingredient, the sesquioxide of iron.
Pass dry chlorine over a mixture ofsesquioxide of chromium and charcoal, heated to redness, in a porcelain tube.
The superb green pigment used by enamellers under this name is the green oxide or sesquioxide of chromium.
It turns preparations of the sesquioxide of iron, dissolved in water, of a bluish black colour, but throws down nothing from a solution of isinglass.
Sesquioxide of manganese and hypochlorite of calcium are formed in the vats, and these two, reacting on each other, give rise to peroxide of manganese and chloride of calcium.
A salt derived from a sesquioxide base, or made up on the proportions of a sesqui compound.
The intimate mixture of the material before treatment being made mechanically, the puddling is avoided, and in consequence a greater proportion of the sesquioxide of chromium in the ores is utilized.
During the operation the mass is constantly puddled to bring all the particles into contact with the hot air, so that all the sesquioxide of chromium of the ore will be oxidized.
It occurs native in hausmannite, and may be obtained artificially by igniting the sesquioxide or peroxide in the open air.
The metal may be obtained by the reduction of its sesquioxide by carbon at an extreme heat.
The sesquioxide is found crystallized in an anhydrous form in braunite, and hydrated in manganite.
The filtrate may contain phosphate of potassa, originating from the phosphate of lime present, and chromate of potassa, resulting from the oxidation of the sesquioxide of chromium.
If the solution is mixed with perchloride of iron, and the sesquioxide of this metal subsequently eliminated by the addition of ammonia, it no longer causes a precipitation in barium solutions.
The plants from the manganese seedlings gave an increased yield in both straw and grain, while those treated withsesquioxide of iron showed no gain over the check plants.
Appended are two analyses of pyrolusite containing sesquioxide of iron.
Sesquioxide of chromium imparts a beautiful green colour to glass, while oxide of uranium produces an opalescent effect of yellow with a tinge of green.
Gmelin states that yellow prussiate of potash yields with a solution of oxalate of sesquioxide of cobalt a blue resembling Prussian blue--that, in fact, there can be obtained a Prussian blue with a base of cobalt instead of iron.
Red Chalk, The colouring matter of which is sesquioxide of iron, is used as a crayon.
I use a paper prepared with iron sesquioxide rendered sensitive to light by tartaric or, better, citric acid in concentrated solution.
By mixing it in the same way with ammonio-oxalate of sesquioxide of iron, we get a dull green picture, changeable through intermediate stages into brown by alkaline carbonates, and that into a dirty black by gallic acid.
The sesquioxide being harder than the iron itself, and adhering to its surface even more firmly than the atoms of iron do to each other, there is an increased resistance not only to chemical but also to mechanical action.
If the temperature is raised to 1,200 degrees, and the time of exposure to six or seven hours, the skin of sesquioxide will resist every mechanical action, and the influence of any kind of weather.
After the vomiting, give hydrated sesquioxide of iron in tablespoon doses, every fifteen minutes, until danger is past.
On the electrolysis of the ammonical solution the sesquioxide appears at the positive pole.
Iron and manganese, when present as protoxide, are dissolved; of iron sesquioxide but traces, and of cadmium oxide in statu nascendi a small portion enter into solution.
It is formed by passing a current of chlorine gas through a solution of ferrocyanide of potassium until the liquid ceases to give a precipitate with a salt of sesquioxide of iron, and acquires a deep, reddish-green color.
When a ferrocyanide is added to a solution of a sesquioxide of iron, Prussian blue or ferrocyanide of iron is produced.
Several shallow, saucer-like vessels contained yellow ocher, and others sesquioxide of iron, which afforded both the ancients and the moderns the red pigment called cuta, an especial favorite of the warrior societies.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "sesquioxide" in a variety of sentences. We hope that you will now be able to make sentences using this word.
