In the case of soils that contain clay only traces of phosphoric acid are found in the drainage water.
The functions which phosphoric acid fulfils in plant life would appear to be connected rather with the maturing of the plant than with the actual growth of the structure.
Phosphoric acid occurs in the soil bound up with the oxides of iron and alumina, or, it may be, with lime, and the extent to which it may become useful to plants will depend largely upon the readiness with which it becomes available.
Soils possess a retentive power for phosphoric acid which enables the latter to be conserved and not removed to any extent by drainage.
This in its functions resembles phosphoric acid somewhat, being concerned rather with the mature development of the plant than with its actual increase of growth.
Its growth, indeed, may be said to be measured by the supply of nitrogen, for while mineral constituents like phosphoric acid and potash are only taken up to the extent that the plant can use them i.
In this way important substances, such as phosphoric acid and potash, are supplied to the plant, as also lime.
While nitrogen delays maturity, phosphoric acid has just the opposite effect, and cereal crops not sufficiently supplied with it ripen much more tardily than do others.
Its value for giving a start to root crops is particularly recognized, and root crops generally are dependent on it, as they have little power of utilizing the phosphoric acid in the soil itself.
Further, the availability of both potash and phosphoric acid in the soil has been found to be much increased by the presence of lime.
The substance of the brain and nerves contains a large quantity of albumen, and, in addition to this, two peculiar fatty acids, distinguished from other fats by containing phosphorus (phosphoric acid?
The phosphoric acid of the phosphate of lime, indispensable to the cerealia and other vegetables in the formation of their seeds, is separated as an excrement, in great quantities, by the rind and barks of ligneous plants.
Again, in sulphuric acid replace one atom of H with Na; then in phosphoric replace first one, then two, and finally three H atoms with Na.
Usually sulphurous acid is used for this purpose, but sometimes phosphoric acid, or a form of it, is employed.
This material contains coarse particles of bagasse together with other impurities including the lime and phosphoric acid which were used in this work.
The compound usually found on the market may consist of one of the following (or a combination of them): H3PO4 (ortho phosphoric acid).
The quick-lime and sulphites are especially susceptible to moisture, while the greatest danger of loss, when phosphoric acid compounds are stored, will result from leakage.
This work is repeated several times until the finished product, which is very hydroscopic, contains about 25 per cent of phosphoric acid.
It is sometimes advisable to apply a form ofphosphoric acid as a clarifying and precipitating agent after the lime.
In any event, it makes a most valuable fertilizer because of the organic matter, nitrogenous bodies, phosphoric acid, and lime that it contains.
It is a patented preparation and is made by the absorption of phosphoric acid by a powdery compound known as "Kieselguhr.
As calcareous earth abounds every where, is the want of phosphoric acid the remote cause?
As these patients are pale and weak, there would seem to be a deficiency of oxygene in their blood, and in consequence a deficiency of phosphoric acid; which is probably produced by oxygene in the act of respiration.
The two last consist of calcareous earth united to phosphoric acid, and the Armenian bole and marl may contain iron.
Calcined egg-shells are said to promote urine, perhaps from the phosphoric acid they contain.
The exchange of which phosphoric acid for carbonic acid, or fixed air, converts shells into limestone, producing mountains of marble, or calcareous strata.
All these concretions contain phosphoric acid, mucus, and calcareous earth in different proportions; and are probably so far analogous in respect to their component parts as well as their mode of formation.
During the night, this species emits a brilliant phosphoric light, and living individuals, which Lesson succeeded in preserving, exhibited great luminosity in the dark.
Inside also there appeared to be a multitude of oblong narrow glands, exhibiting a high degree of phosphoric power.
The phosphoricacid is at first slightly diminished, but later undergoes an increase.
One ton of ordinary stable manure contains about 1275 pounds of organic matter, carrying eight pounds of nitrogen, ten pounds of potash, and four pounds of phosphoric acid.
In ordinary manure most of the value is due to the nitrogen, although phosphoric acid and potash are also present.
Every little wave that broke against the side flashed like lightning with the phosphoric light of the zoophytes, and when at eleven the paddles began to move, great circles of phosphoric light surrounded the vessel.
Phosphoric acid which has once obtained water cannot be deprived of it by heat alone.
Upon subjecting phosphoric acid, fused upon the ring end of a wire (401.
Phosphoric acid is, I believe, also in the same condition; but I have found it impossible to decide the point, because of the difficulty of operating on fused anhydrous phosphoric acid.
These fumes are phosphoric acid which is a substance made of phosphorous and the oxygen of the air together.
Now, phosphoric acid melts in water just as sugar does, and in a few minutes these fumes will disappear.
Another use of phosphoric acid in the plant is to supply it with a small amount of phosphorus, which seems to be required in the formation of the seed.
The cultivation of our whole country has been such, as to take away the phosphoric acid from the soil without returning it, except in very minute quantities.
It is well known that soils deficient in potash, will naturally produce one kind of plants, while soils deficient in phosphoric acid will produce plants of another species, etc.
What is usually the best source from which to obtain phosphoric acid?
The organic part, containing nitrogen, forms ammonia, and the inorganic part supplies the much neededphosphoric acid to the soil.
In that of the straw, we find a large proportion of silica and scarcely any phosphoric acid, while in that of the grain there is scarcely a trace of silica, although phosphoric acid constitutes more than one half of the entire weight.
How large a part of the ashes of grain consists of phosphoric acid?
I also was much puzzled, and inclined to think with Jack that it must be phosphoric light, of which luminous appearance we had seen much while on our voyage to these seas.
Phosphoric sparks hissed and crackled forth, and coalesced into a blue lambent flame, which concentrated itself upon a depicted figure, whose precise attitude the ratcatcher assumed as he dropped upon his knees.
No saucer eyes, it is true, were visible, but it had a white nose that, to the horrified traveller, seemed lit with a supernatural phosphoric radiance.
If the fluid is then filtered, and the excess of sulphuretted hydrogen expelled from the filtrate by boiling, a liquid possessing the distinctive properties of a solution of phosphoric acid will be obtained.
The remaining mass is then dissolved in water to which some ammonia is added, and the solution tested for phosphoric acid.
In the quantitative estimation of alumina, the phosphoricacid usually present in the precipitate should be removed.
Upon adding acetate of lead to the solution, a white precipitate is produced if phosphoric acid be present.
The filtrate is then tested for phosphates, by means of molybdate of ammonia (vide: detection of phosphoric acid, p.
Venus, Jupiter, the moon, and comets, are conjectured to have a certain portion of phosphoric light, which is independent of and unborrowed from the sun.
A lady in Italy is described by Bartholin as producing phosphoric radiation when her body was gently rubbed with dry linen, and more than one instance of pale light surrounding sick persons is recorded on good authority.
The most beautiful instance of this is found in the mines in Hesse, where the galleries for supplying air are illumined with this soft phosphoric light.
Quite distinct from luminous mists is another species of phosphoric phenomenon in the shape of luminous bodies of considerable size and brilliancy.
It is observed that nearly all the flowers proved to be phosphoric are of a yellow color, but the cause of this has not been ascertained.
It was not a wet fog, but a sort of dry mist, so impenetrable as to render invisible the banks of the river Leman, but at the same time diffusing sufficient phosphoric light to make small objects clear as on a moonlight night.
From him this substance has received the name of Bologna stone; and this first discovery has been followed by others, which prove that phosphoric light may be produced by heat, friction, cleavage, and many other forces beside insolation.
But this is the only case of at all probable phosphoric light.
The reader cannot fail to have noticed that there is no instance recorded of any larger animal producing phosphoric light.
Being, as it were, a deep mass of phosphoric vapor, reaching to the summit of the highest mountains, no storms of rain or wind seemed to affect it; but in Europe it was thought to emit an unpleasant sulphurous smell.
It is a question whether they were in a state of decomposition, and if so, it differs slightly from the luminosity of decaying wood, which is usually caused by the presence of phosphoric fungi.
Phosphoric acid, another of the very important plant-foods, is present in arid soils in only slightly higher quantities than in humid soils.
They are characterized by the properties which normally belong to volcanic soils; somewhat poor in lime, but rich in potash and phosphoric acid.
By somewhat subtle chemical changes it makes the relatively small percentages of other plant-foods notably phosphoric acid and potash, more available for plant growth.
The header stubble contains a very large proportion of the nitrogen that the crop has taken from the soil and more than half of the potash and phosphoric acid.
The potash and phosphoric acid supply can probably be maintained for ages by proper methods of cultivation, though thephosphoric acid will become exhausted long before the potash.
The incombustible deposit of carbon andphosphoric acid thus produced ultimately chokes the burner.
According to these investigators the combustion of the phosphine causes a deposit at the burner orifices of phosphoric acid, which is raised by the flame to a temperature higher than that of the burner.
Each is harmful to the human system, sulphuric and phosphoric anhydrides (SO3, and P4O10) acting as specific irritants to the lungs of persons predisposed to affections of the bronchial organs.
As the phosphoric anhydride, or pentoxide, which is produced when a gas containing phosphorus burns, is a solid body, it may be deposited at the burner jets.
Phosphorus is objectionable because in similar circumstances it produces phosphoric anhydride and phosphoric acid.
Immediately it comes in contact with atmospheric moisture phosphoric anhydride is converted into phosphoric acid, but this also occurs at first as a solid substance.
When a gas containing phosphorus is burnt beneath such a mantle, the phosphoric anhydride attacks those oxides, partially converting them into the respective phosphates, and these bodies are less refractory.
Thus the ultimate products are phosphoric acid and ferrous chloride, which on exposure to air is oxidised to ferric chloride and oxide.
The phosphoric acid was then precipitated by addition of ammonium molybdate.
The phosphoric acid is usually combined with alkaline bases; as lime in the bones, forming phosphate of lime.
Look closely and you see that that seeming snow is gelatinous; bring your microscope into play and you see that that seeming jelly is a mass of living, moving, phosphoric animalculae, flashing forth strange and marvellous lights.
That phosphoricbrilliancy is by no means the exclusive privilege of Death.
How dark is the night at sea when we do not see that phosphoricgleam or a fitful flashing!
These latter, like the phosphoric creatures of the deep, palpitate and flash fitfully, now gleaming and anon paling, now leaping into dazzling glow, and anon dying into deepest darkness.
Phosphoric lights gleam and flash upon the waters, and from deck to deck is heard the hearty hail, "Look out, there!
Bathed, like so many other beings, in the phosphoric fluid with which they are all penetrated, she returns it in her manner, with a peculiar charm.
The melt is dissolved in water, a little sodium bisulphite added, the solution cooled and neutralized with phosphoric acid, using methyl orange as indicator.
Iodine on a water bath until all iodin had volatilized was dissolved in water, acidulated with phosphoric acid, and hydrogen dioxid solution added.
Phosphoric acid exerts practically the same actions as other mineral acids, hydrochloric being usually preferred for internal administration in certain forms of indigestion, aside from which they are seldom used as such.
They all consist of glyceryl esters containing two fatty acid radicals and the phosphoric acid radical in which one of the residual hydrogens is replaced by the choline group.
This acid is produced by the interaction of glycerin and phosphoric acid.
The phosphoric matches consist of phosphorus extremely dry, minutely divided, and perhaps a little oxygenized.
The inside, also, appeared furnished with a multitude of little, narrow, oblong glands, which possessed the phosphoric virtue in a high degree.
The organization of this animal, which is called the Pyrosoma Atlanticum, ranks it amongst the most singular of the zoophite tribe; whilst its extraordinary phosphoric powers render it the most beautiful that has yet been seen.
It dissolves too in ether; and a very beautiful experiment consists in pouring this phosphoric ether in small portions, and in a dark place, on the surface of hot water.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "phosphoric" in a variety of sentences. We hope that you will now be able to make sentences using this word.
