KMnO{4} were used, to what oxide was the molybdenum reduced?
The molybdenum can be removed by solution of the precipitate in acid and precipitation of the molybdenum by sulphureted hydrogen, after which the magnesium precipitate may be again thrown down.
Very large resources of molybdenum have been developed in America, and the mining companies who are equipped to produce the metal are very active in advertising the advantages of molybdenum steels.
It fell into disrepute as an alloy for high-speed tool steel, however, because it was found that the molybdenum was driven out of the surface of the tool during forging and heat treating.
In general, molybdenum when added to an alloy steel, increases the figure for reduction of area, which is considered a good measure of "toughness.
Within the last few years it has been found that the presence of less than 1 per cent of molybdenum greatly enhances certain properties of heat-treated carbon and alloy steels used for automobiles and high-grade machinery.
In combination with its rival as a tungsten-molybdenum alloy it is capable of taking the place of the intolerably expensive platinum, for it resists corrosion when used for spark plugs and tooth plugs.
Molybdenum or uranium may replace part of the tungsten.
European steel men have taken to molybdenummore than Americans.
Molybdenum presents us with only two new forms, and these are merely four-atomed tetrahedra, occurring in pairs as object and image.
Each of the four funnels opens, as usual, on one face of the tetrahedron, and they resemble the funnels of strontium and molybdenum but contain three pillars instead of four (Plate XXIII).
Vanadium, molybdenum and titanium may be expected soon to play an important part in the constitution of steel.
The bodies SbNa3, BiNa3, SnNa4, compounds of iron and molybdenum and many other substances, have also been isolated in this way.
Molybdenum high-speed steel is more expensive than tungsten high-speed steel, but is said to wear better.
Priestley discovered oxygen independently at about the same time), and his investigation of molybdic and tungstic acids in the following year; metallic molybdenum was obtained by P.
A blue may also be obtained by putting into molybdic acid, (made by digesting sulphuret of molybdenum with nitric acid,) some filings of tin, and a little muriatic acid.
Molybdenum blue is a combination of this metal, and oxide of tin or phosphate of lime.
Vanadium is white, and when its surface is polished, it resembles silver or molybdenum more than any other metal.
Palladium } Molybdenum } Nearly infusible; and to be obtained Uranium } at a forge heat only in small Tungsten } buttons.
Molybdenum being a rare metal, and persulphomolybdate of potash, the salt used in the foregoing reactions, difficult to prepare, it is unlikely that the colours named will rank among the pigments of this generation.
It is formed when a solution of bichloride of molybdenum is poured into a saturated, or nearly saturated, solution of molybdate of ammonia.
Molybdenum metal has been used to a small extent in incandescent lamps and as a substitute for platinum in electric contacts and resistances.
For instance, the United States entered into an agreement with England and France for the purchase of iron ore and molybdenum from Scandinavia to keep it out of Germany.
Molybdenum is added to steel either as powdered molybdenum or in the form of ferromolybdenum, an alloy containing 60 to 70 per cent of the metal.
Molybdenum ores range from considerably less than 1 per cent to about 5 per cent in molybdenum.
Molybdenum chemicals are essential reagents in iron and steel analysis and other analytical work; they are also used as pigments.
Production of molybdenum in this country practically began in 1914.
If this acid or the oxide of molybdenum be exposed upon a platinum wire to the point of the reduction flame, a bright green color is communicated to the flame of oxidation.
In a strong flame, oxide of molybdenum is formed which is visible in the yellow glass in the form of black flakes.
If also any of the compounds of molybdenum are mixed in the form of a powder with concentrated sulphuric acid and alcohol, and the latter inflamed, the flame of the alcohol appears colored green.
Molybdenum is detected by its behaviour with sulphuretted hydrogen.
All molybdenum compounds are converted into the trioxide by boiling with nitric acid.
The precipitation as sulphide is only complete on prolonged treatment; a green colour indicates that some molybdenumstill remains in solution.
Molybdate of ammonia is an important reagent in the determination of phosphates, the manufacture of which compound is the chief purpose to which molybdenum is applied.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "molybdenum" in a variety of sentences. We hope that you will now be able to make sentences using this word.
