Ammonia, however, can only be oxidised to nitric acid by means of certain powerful oxidising agents, such as ozone or hydrogen peroxide.
Some good authorities recommend painting the cankers with lemon juice and putting a piece of alum in the drinking water, but we prefer the peroxide of hydrogen treatment.
This will leave a raw red spot, which should be gently swabbed with a solution of peroxide of hydrogen and water, half and half.
When this disease appears, wash the sores with a solution of copper sulphate or a solution of peroxide of hydrogen and water, equal parts.
Add a little dilute hydrochloric acid and saturate withhydrogen sulfid and test for lead, zinc, copper, and arsenic according to Allen's method given under canned meats.
Let the hydrogen flow at least a quarter of an hour, then heat the gauze for 15 or 20 minutes.
The gas leaked out below, and left a regular train of hydrogen in its path.
At the moment of lighting her fireworks she was so imprudent as to pass the taper under the column of hydrogenwhich was leaking from the balloon.
These are not merely mixed together but are in combination, just as oxygen and hydrogen are combined in water.
Now it is easy to picture to ourselves an atom of carbon in the middle with its hooks pointing out north, south, east and west with a hydrogen atom linked on to each.
The second liquid separated from coal tar naphtha is called Toluene, which again is composed of carbon and hydrogen in slightly different proportions.
It consists of carbon, a lot of hydrogen and some oxygen.
First, the hydrogen is displaced by the chlorine: then the chlorine is turned out and its place taken by the hydroxyl.
Hence each will have three hooks to spare on to which we can hook a hydrogen atom.
It consists of twelve parts of carbon, twenty-two of hydrogen and eleven of oxygen.
Add another of carbon and two more of hydrogen and you get the second "Ethane.
But where, you will ask, does the hydrogen come from, which we found, in the experiment, was bubbling up round the cathode.
Every molecule of water has two atoms of hydrogen linked up with one of oxygen, but sodium does not like two atoms of hydrogen: it insists on having one only.
It is a fact that the chlorine has this power to oust the hydrogen and there we must leave it, for the present at any rate.
Imagine two methyl radicles, each, let me remind you, a carbon atom with three hydrogen atoms hooked on and one spare hook.
For bleaching ostrich feathers a bath is prepared of peroxyd of hydrogen to which so much liquid ammonia is added as to give the bath a sharp pungent odor.
Then proceed to put them in a second bath of peroxide of hydrogen to be prepared as follows: To a half gallon demijohn of peroxide of hydrogen add two and a half gallons of water, and add thereto about eight ounces of ammonia.
The only known chemical agent affecting such a bleach to nearly white is peroxyd of hydrogen or oxygenated water.
The peroxide ofhydrogen will continue to work for about twelve hours more, until it becomes thoroughly exhausted; after which take out your feathers and rinse a few times in luke warm water.
Mix in a clean wooden tub twenty litres peroxyd of hydrogen (Koenigswaeter & Ebell) with four hundred and fifty grammes ammonia 20 deg.
This most valuable bleaching agent is a contraction of hydrogen and oxygen, of the formula HO{2}, sp.
The electric currents of Berzelius and Oersted, the crucible of Wohler, the closed furnaces and the hydrogen gas of the French manufacturers and the Bessemer converter apparatus of Thompson, all indicate one direction.
This acts as a depolarizer, that is, it combines with the hydrogen to form water.
When hydrogen gas is allowed to flow into the space between C and B, the level of the water in W is seen to lower and a stream of water runs out at J spurting up into the air.
The hydrogen gas can be lighted by a flame while the oxygen gas will cause a spark upon a piece of wood to glow brightly, but does not burn itself.
The appearance of these bubbles indicates that some of the hydrogenions carrying positive electricity have moved to the zinc plate.
Hydrogen molecules are found to move about four times as fast as air molecules.
This accumulation of hydrogen gas is called polarization.
Hence, while both air and hydrogen molecules are at first going in opposite directions through the walls of C, the hydrogen goes in much faster than the air comes out.
How large a load can it carry when filled with hydrogen specific gravity 0.
Electrolysis of water; oxygen collects in O, hydrogen in H.
In the simple voltaic cell, after the circuit is closed, bubbles of hydrogen collect upon the copper plate.
The hydrogenions are moved by the current to one set of plates and change the paste to spongy metallic lead.
After the action has continued some time it may be noticed that the volume of hydrogen is just twice that of the oxygen.
Here, as in the experiment of the hydrogen and air passing through the porous cup, the lighter fluid moves faster.
This experiment demonstrates not only the fact of molecular motion in gases but also that molecules of hydrogen move much faster than those of air.
On that hypothesis there would be as many forms of this original consciousness as there are chemical elements; each atom of hydrogen would have its hydrogenic consciousness, each atom of carbon its carbonic consciousness, and so forth.
Water, which is composed ofhydrogen and oxygen, covers three-fourths of the earth's surface.
In making hydrogen gas it is customary to allow 20 per cent for loss between the generation and the introduction of the gas into the balloon.
Hydrogen is the lightest and consequently the most buoyant of all known gases.
A one per cent solution of resorcin, or of hydrogen dioxide, diluted with four parts of water, used in an atomizer for spraying the throat, every two hours, has given good results.
The throat should be sprayed hourly with a solution of hydrogen peroxide (full strength) and the nose with the same, diluted with an equal amount of water, three times a day.
Thus, hydrogen by its absorptive action produces four of the bright lines.
On the other hand, it is also possible, and perhaps on the whole more probable, that the hydrogen surrounding the star was simply set glowing with increased lustre owing to some cause not as yet ascertained.
They are not burning like the hydrogen flames which are used for the oxy-hydrogen lantern.
One star has more hydrogen, at least more hydrogen at work absorbing its rays, and thus has the hydrogen lines more strongly marked than they are in the solar spectrum.
It is certain that the increase in the star's light, rendering the star visible which before had been far beyond the range of ordinary eyesight, was due to the abnormal heat of the hydrogen surrounding that remote sun.
But it is not so clear whether the intense glow of the hydrogen was caused by combustion or by intense heat without combustion.
So with the hydrogen flames which play at all times over the surface of our own sun.
Were the solar hydrogen so burning, the sun would quickly be extinguished.
If intense heat is continued, all thehydrogen and oxygen are driven off and pure carbon remains.
When the fat is "brown," giving the flavor we like, a part of the oxygen and hydrogen have been driven off.
At a higher temperature, a chemical change takes place, and the fat finally "burns," as the hydrogen and oxygen pass off.
An atmosphere of rare matter, composed principally of incandescent hydrogen gas, surrounding the sun and enveloping the photosphere.
In many respects it resembles chlorine in its chemical behaviour, a circumstance noted by Gay-Lussac; it combines directly with hydrogen (at 500 deg.
Pass a current of sulphuretted hydrogen gas through the solution; if there be any tin present a brown precipitate of tin sulphide will be obtained.
But indigo white is an unstable substance on exposure to air, the oxygen of the latter attacks the hydrogen which it has taken up, and indigotin is reformed, the indigo white changing again into indigo blue.
We find that the consumption of carbon by union with oxygen is the law, that heat is the product, and that the legitimate result is force, while the result of the union of the hydrogen of the foods with oxygen is water.
It consists of a dilute acid known to the chemists as hydrochloric acid, composed of hydrogenand chlorine, united together in certain definite proportions.
At the same time that the copper oxide is reduced it is clear that the hydrogen is oxidized, for it combines with the oxygen given up by the copper oxide.
Hydrogen dioxide decomposes very rapidly when powdered manganese dioxide is sifted into its concentrated solution.
The chemical conduct of hydrogen dioxide leads to the conclusion that the two oxygen atoms of its molecule are in direct combination with each other, and in addition each is in combination with a hydrogen atom.
The gas which first passes over is mixed with the air previously contained in the flask and tube, and is allowed to escape, since a mixture of hydrogen with oxygen or air explodes violently when brought in contact with a flame.
In order to avoid danger it is absolutely necessary to prove that the hydrogen is free from air before igniting it.
Thus, in the general reaction between an acid and a base, the essential action is between the univalent hydrogen ion and the univalent hydroxyl ion.
The hydrogen combines with the oxygen present in the copper oxide to form water, which is absorbed by the calcium chloride in tube C.
By holding a cold, dry bell jar or bottle over the flame, in the manner shown in the figure, the steam formed by the combustion of the hydrogen is condensed, the water collecting in drops on the sides of the jar.
Other experiments show that the volume of hydrochloric acid formed is just equal to the sum of the volumes of hydrogen and chlorine.
If the French were sure of this--that is, that a Soviet-occupied France would get sixty-five hydrogen bombs dropped on it while a U.
At Samarang, Z64 took in fresh hydrogenand petrol.
At any rate, if we can make Panama we will manage with hydrogen for the remaining ballonets.
Had the "Golden Hind" been supported by hydrogen gas nothing could have saved her.
In less than fifteen seconds from the time the hawser had been slipped the hydrogen escaping from the leaky ballonets was ignited.
They were fully convinced that the hydrogen had ignited.
Notified by wireless of Z64's impending arrival at Napier, the authorities at that town had cylinders of hydrogen and a large stock of petrol in readiness for the German airship's requirements.
Here, in a flask, is a mixture of hydrogen and chlorine in equal volumes.
Instantly a violent explosion is heard; the hydrogen and the chlorine disappear, and you find in the flask a new substance,--chloridic acid.
A molecule of hydrogen is a granite cliff in comparison.
When ready to use the flame, open N which allows the hydrogen gas to escape.
In 1842, Grove constructed a gas battery, in which the electromotive force came from the oxygen and hydrogen evolved in the electrolysis of water acidulated with sulphuric acid.
A battery, even at rest, gives off hydrogen which when diluted with air forms a mixture which is very liable to explode if brought in contact with any kind of flame.
Neutralize a sample of the electrolyte with ammonia; boil a small portion with hydrogen peroxide, and add ammonia or caustic potash solution until the mixture becomes alkaline.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "hydrogen" in a variety of sentences. We hope that you will now be able to make sentences using this word.
