And these two substances are so unstable as to decompose at quite ordinary temperatures; as that to which the outside of a joint of roast meat is exposed.
The latter contains cellulose, as in ordinary plants; and the chlorophyll which gives the green colour enables the Chlamydomonas to decompose carbonic acid and fix carbon as they do.
These shells of Mollusca decomposemore easily and disappear sooner than the smaller, and apparently more delicate, shells of rhizopods.
We have just learned that with electricity we could decomposethe compound water into its elements, hydrogen and oxygen.
Sidenote: Packing-house uses of stearin and olein] When fats are heated to a high temperature theydecompose and form various products, some of which are irritating and poisonous to the human system.
If left to decompose they would soon have bred a pestilence, and in those days human effort was not to be reckoned upon in the work of sanitation.
Experience accumulated its results and it became daily more evident that death not only put an end to the activity of the organs, but that, immediately upon its occurrence, it began to dissolve and decompose their tissues.
Cold sulphuric acid does not readily decompose it, nor does nitric acid, unless it be somewhat strong.
The liquor which passes through is to be saturated with muriatic acid, to decomposeall the sulphurets.
In order to decompose any alum which may remain in solution, the equivalent quantity of crystals of carbonate of soda may be added to it.
As the heat of boiling water is apt to decompose woollen fibres, we should be careful never to raise the temperature of the scouring bath to near this point, nor, in fact, to exceed 140 deg.
But in general there is abundance of sulphate of soda in brine springs to decompose the chloride of calcium.
Gallic acid does not decompose the salts of protoxide of iron, but it forms, with the sulphate of the peroxide, a dark blue precipitate, much less insoluble than the tannate of iron.
Add a large excess of tartaric acid to the chromate in question, which will decompose it, and produce in a few minutes a deep amethyst colour.
If we now decompose this solution, by pouring into it water of ammonia, there appears an insoluble white powder, which is subsulphate of alumina, or basic alum; and contains three times as much earth as exists in the neutral sulphate.
The most ordinary process for converting the ammoniacal liquor of the gas works into sal ammoniac, is to saturate it with sulphuric acid, and to decompose the sulphate, thus formed, by the processes above described.
Each of these substances is to be pulverized, and then all are to be exactly mixed, and exposed to a heat adequate to decompose the sal-ammoniac.
Alkaline solutions do not decompose chloride of silver.
The acetate of lime, and sulphate of alumina and potash, mutually decompose each other; with the formation of sulphate of lime, which falls immediately to the bottom.
Some bleaching chemists declared the process was not patentable, as fully half a century ago carbonic acid was known to decompose chloride of lime.
Thompson, of New Cross, London, patented a new process of bleaching, the main feature of which consisted in the use of carbonic acid gas in a closed vessel to decompose the chloride of lime.
It would, however, decompose a few insoluble matters, and combine with alkalies and their carbonates, forming salts which in the blood would again change into carbonates.
If we decompose water we can obtain from it a gas.
Nor can they aid digestion by assisting to decompose food.
This proves the superiority of the yellow ray todecompose carbonic acid; and this fact Professor J.
Does Nature decompose Water in any of her operations?
The heat must not be sufficient to decompose the sulphate of cobalt, which decomposition is indicated by a blackening of the substance at the edges.
Evaporate at first, on a water-bath in a well ventilated place, but finish off with a naked Bunsen flame, using a high temperature at the end in order to completely decompose the more refractory double cyanides.
It is prepared when wanted in solution, by adding a gram or so of bicarbonate of soda and then as much acid as will decomposethe bicarbonate mentioned.
This, which is of somewhat limited application, is based upon the determination of the quantity of acid required to decompose the carbonate.
It must contain 10 grams of sodium acetate, or sufficient to convert any free mineral acid into its corresponding sodic salt; or, if chlorides, nitrates or sulphates of the metals are present, sufficient to decompose them.
A rod of iron placed in the crucible with the assays will decompose any regulus that may be formed.
Nearly all volatile oils free from oxygen show the same behavior towards nitroprusside of copper; they decompose it, which is not the case with oxygenated oils.
The enzymes necessary to decompose the injected protein are present in certain cells and are formed in larger amount by those cells to meet the increased demand due to injection of an excess of protein.
Hence it appears rational to assume that the foreign proteins act as stimuli to certain cells to produce more of the enzymes necessary to decompose them, so that they may be either built up into cell structure or eliminated as waste.
These repeated heatings are very apt todecompose the gelatin, so it will not "set" on cooling.
In order, then, for the current to decompose water, this attraction between the gases must be overcome; and as soon as the current ceases, these gases try to rush together again to form water.
Furthermore, just as yeast germs live on and decompose sugar, so disease germs live on and decompose morbid matter and systemic poisons.
They contain certain proteolytic or protein-splitting ferments, by means of which they decompose and digest poisons and hostile microorganisms.
To mingle, as different fertilizing substances, in a mass where they will decompose and form into a compost.
All carbonates, except those of the alkali metals and of thallium, are insoluble in water; and the majority decompose when heated strongly, carbon dioxide being liberated and a residue of an oxide of the metal left.
Sometimes native sulphide of lead (galena) is used to decompose the sulphate of soda, and in lieu of part of the oxide of lead; in which case about 5 parts of the sulphuret are taken for every 9 parts of the calcined sulphate.
In chemistry, those substances or bodies which have hitherto resisted every attempt which has been made to decompose them, or to resolve them into simpler forms of matter.
Forty parts of dry sulphuric acid are required to decompose 50 parts of chalk.
When potassa or soda is used the distillation is omitted, and the expressed liquor, after filtration, used to decompose fresh lemon juice.
Now, it is utterly impossible that arsenic could volatilise from such a compound at ordinary temperatures; it does not decompose at any temperature below redness.
It would decompose water at a red heat; gallium readily does this at high temperatures.
If left in, the sulphuric acid will, when the salts are added, decompose the nitrate of baryta, forming insoluble baric sulphate and free nitric acid.
To convert; to reverse; to decompose by, or subject to, inversion.
The globes of water decompose the solar beams; and we follow the course suggested by the rainbow, and analyse the sunlight into its constituents.
Even the most perfectly purified nitrocellulose will slowly decompose with formation of unstable acid products by boiling for a long time in water.
On sandy land the manure willdecompose more rapidly and act quicker.
The clay-land farmer should use his best endeavors to decompose his manure.
The salts of ammonia are quite soluble and act quickly; while the Peruvian guano has to decompose in the soil, and consequently needs to be applied earlier, especially on clay land.
We ferment manure for the same reason that we decompose bone-dust or mineral phosphates with sulphuric acid, and convert them into superphosphate, or for the same reason that we grind our corn and cook the meal.
The gelatine of the bones would soon decompose in a moist, porous, warm soil, provided it was not protected by the oil and by the hard matter of the bones.
But,” it may be asked, “will not this fresh manure decomposein the soil, and furnish ammonia?
