Any fermentation process by which ammonia is formed, as that by which urea is converted into ammonium carbonate when urine is exposed to the air.
An explosive consisting of ammonium nitrate, a derivative of nitrobenzene, chlorated napthalene, and wood meal.
His body sank and the atoms of helium temporarily left their random state with the influx of heat, but returned quickly as the magnetic field took up the slack, vaporizing the ammonium salts.
The physician may indicate whether ammonium alum or potassium alum is desired.
A mixture of ammonium bicarbonate andammonium carbamate, yielding about 31 per cent.
An ointment composed of ammonium oleate, white wax, light liquid petrolatum and alcohol scented with oil of lavender.
Its solubility in water is increased by the addition of sodium or ammonium chloride.
The filtrate is heated to a boil, and mixed with ammonia and ammonium carbonate, to precipitate the excess of baryta in solution.
The last traces of lime are eliminated by means of a few drops of ammonium oxalate.
With the fumes of chloride of ammonium substantially the same results were obtained.
Experiments on the fumes of chloride of ammonium gave me also reason to suspect that the position of the neutral point was not constant, but that it varied with the density of the illuminated fumes.
The bichromate of ammonium and potassium are used in photography.
Valerianic acid, 3 grammes dissolved in 40 grammes distilled water and neutralised with ammonium carbonate.
Now add chloride of ammonium and ammonia, and boil for five minutes.
Phosphate of sodium and ammonium give a similar bead; but the colour is less intense.
With neutral solutions, even when very dilute, oxalate of ammonium gives a copious white precipitate, soluble in most dilute acids.
Evaporate the liquid containing the precipitate suspended to it, in a dish, until all the smell of sulphide of ammonium has disappeared.
Carbonate of ammonium and carbonate of sodium give pink precipitates; that from the former is soluble in excess.
The process under consideration, in common with some others, is based upon the fact that gelatine or albumen sensitised with bichromate of ammonium or potassium, becomes insoluble after being acted upon by light.
In the albumen process the sensitive film is composed of egg albumen, bichromate of ammonium or potassium, and water, which is spread upon a zinc plate.
Faces of a pentagonal icositetrahedron with high indices have been very rarely observed on crystals of cuprite, potassium chloride and ammonium chloride, but none of these are circular polarizing.
It unites directly with ammonia gas to form ammonium carbamate, NH2COONH4.
Aqueous and alcoholic solutions of ammonia convert carbon bisulphide intoammonium dithiocarbamate, which readily breaks down into ammonium thiocyanate and sulphuretted hydrogen (A.
Meta-aminophenol is prepared by reducing meta-nitrophenol, or by heating resorcin with ammonium chloride and ammonia to 200 deg.
Winkler), and when passed over sodamide it yields ammonium thiocyanate.
The question being whether the molecular weight ofammonium chloride is two vols.
There is, however, a similar slight excess in the case of the vapor of ammonium cyanide, the same values being respectively 11.
Both ammonium and hydric sulphides blacken silver and filter-paper moistened with acetate of lead solution.
The hydrochlorides are soluble in absolute alcohol, while chloride of ammonium is insoluble; this property is taken advantage of for separating amines from ammonia.
The resulting alcoholic extract is treated with a few drops of ammonium oxalate solution, and the solution is almost neutralised with ammonia.
Morphine is easily soluble in dilute acids, as well as in solutions of the caustic alkalies and alkaline earths; carbonated alkalies and chloride of ammonium also dissolve small quantities.
A double chloride of ammonium and mercury is formed, and HCN distils over with the steam.
Caesium and rubidium salts, even in dilute solutions, are precipitated by it; neutral solutions ofammonium chloride give with it a white precipitate, soluble with difficulty in large quantities of water.
If exposed to the vapour of ammonia, extremely dense clouds arise, due to the formation of the solidammonium chloride.
The next stage of the process, if we follow on after the preparation of the pure carbonic acid, is the employment of the gas for the decomposition of the ammonium sulphide absorbed in a brine liquor as above explained.
Into this liquor of brine and ammonium sulphide pure carbonic acid gas is now passed.
The decomposition of the ammonium chloride by means of "alkali waste" is carried out in a specially designed still.
In outline the process is as follows: We will suppose that a quantity of bicarbonate of sodium has been just precipitated from a brine solution, and we have the residual ammonium chloride to deal with.
This ammonium sulphide is, as we shall see, quite as available for the working of the ammonia-soda manufacture as pure and simple ammonia, and all the sulphur can be obtained from it.
The brine and ammonium sulphide are contained in what is known as a "Solvay tower," provided with proper means for dispersion and absorption of the carbonic acid gas.
The original patents on the use of ammonium bicarbonate have, we understand, long since expired.
The residual chloride of ammonium is decomposed by distillation with lime, giving ammonia for reconversion into bicarbonate of ammonium, and chloride of calcium, which is a waste product.
This is decomposed by "alkali waste," giving a final liquor of calcium chloride, which is run to waste, and a quantity of ammoniumsulphide gas.
On decomposing the lead compounds withammonium sulphide, shaking out with ether, and letting the ether evaporate spontaneously, a non-volatile oil was obtained which gave the characteristic skin eruptions.
For simple catarrh use the following: ℞ Chloride of ammonium Borax āā gr.
The viscose is projected into solutions of chloride of ammonium and washed in a succession of saline solutions to remove the residual sulphur impurities.
The solution may be regarded as containing the ammonium cellulose xanthate.
The nitrogen in the amidobenzoate resulting from the reduction with ammonium sulphide was 4.
The removal of the nitric groups from the esters is effected by digestion with ammonium sulphide.
A variety of it was on the old British Permitted List-- Ammonium nitrate 87 Trinitro-toluene 7 Curcuma charcoal 6 Other varieties containing a smaller percentage of ammonium nitrate have been used for general blasting.
In this explosive the potassium nitrate is replaced mainly or wholly by ammonium nitrate, and it contains not more than 15 per cent.
Benzamide, C6H5CONH2, is prepared by the action of benzoyl chloride on ammonia or ammonium carbonate, or from ethyl benzoate and ammonia.
The ammonium salt is most often employed, owing to the stimulant character of the ammonium base.
This is now treated for some days with a hot concentrated solution of ammonium carbonate, which precipitates the iron and aluminium but keeps the beryllium in solution.
These organic betaines are internal anhydrides of carboxylic acids, which contain an ammonium hydroxide group in the [alpha]-position.
Benzoic acid itself, ammonium benzoate and sodium benzoate are all administered internally in doses of from five to thirty grains.
To remove the iron, the precipitate is again dissolved in ammonium carbonate and steam is blown through the liquid, when beryllium oxide is precipitated.
A white crystalline substance obtained by adding a solution of corrosive sublimate to a solution of sal ammoniac (ammonium chloride); -- formerly called also fusible white precipitate.
Defn: Any of several explosive mixtures, chiefly of ammonium nitrate and a nitrate derivative of naphthalene.
It unites with acids to form salts, as nitrate of urea, and it can be made synthetically from ammonium cyanate, with which it is isomeric.
Defn: A radical regarded as derived from ammonium by the substitution of mercury for a portion of the hydrogen.
Defn: A hypothetical radical derived from ammonium by the substitution of metallic atoms in place of hydrogen.
Ammoniacal fermentation, the conversion of the urea of the urine into ammonium carbonate, through the growth of the special urea ferment.
Its ammonium salt is obtained by boiling oxamide with ammonia.
Defn: A salt of uric acid; as, sodium urate; ammonium urate.
The primary aromatic amines may be prepared by the reduction of the nitro-hydrocarbons, the reducing agents used being either alcoholic-ammonium sulphide (N.
Ammonium chlorate, NH4ClO3, is obtained by neutralizing chloric acid with either ammonia or ammonium carbonate, or by precipitating barium, strontium or calcium chlorates with ammonium carbonate.
Ammonia and ammonium salts can be readily detected, in very minute traces, by the addition of Nessler's solution, which gives a distinct yellow coloration in the presence of the least trace of ammonia or ammonium salts.
This compound on exposure to air gives off ammonia and passes back to ammonium bicarbonate.
Several complex polysulphides of ammonium have been isolated, for details of which see Bloxam's paper quoted above.
Ammonium iodide, NH4I, can be prepared by the action of hydriodic acid on ammonia.
They may be prepared by the dry distillation of the ammonium salts of the acids (A.
However, ammonium sulfate does not eliminate or reduce worms when the soil contains large amounts of chalk or other forms of calcium that counteract acidity.
Rodale correctly pointed out that golf course groundskeepers use repeated applications of ammonium sulfate to eliminate earthworms from putting greens.
Certain packages of phenalgin were purchased which on analysis did not show ammonium carbonate.
Disinterested chemists who have analyzed Vasogen find that the product consists essentially of an ammonium soap and petrolatum--practically an ammonia liniment mixed with petrolatum.
Ammonium hypophosphite, in the amount said to be present, may be considered to be practically useless, while the dose of hyoscyamus, an additional narcotic, is fairly large.
Iodovasogen, recommended for external application as a substitute for tincture of iodin, was examined by Zernik in 1905, who found that the iodin existed not as a free iodin, but chiefly as ammonium iodid.
The therapeutic character of the preparation is thus entirely different from that to be inferred from the labels and elsewhere, since the counter-irritant effects of free iodin are of course absent in ammonium iodid.
Soda and ammonia, combined with carbonic acid, are calculated and reported as sodium bicarbonate and as ammonium carbonate (U.
Determinations of the iodin by distillation with ferric ammonium sulphate solution and sulphuric acid indicated the presence of about 1.
If garments are dipped in a solution of ammonium phosphate in the proportion of one pound to a gallon of cold water, they are made fire-proof," read a leaflet that was handed in at every house in the town.
Ammonium phosphate costs but 25 cents a pound," it went on.
In this case the mixture was evaporated to dryness on the steam bath, when bubbles of gas were evolved, due to the decomposition of the ammonium nitrite.
Some four or five years since I tried using bromide of zinc instead of the ordinary salts, namely, bromide of ammonium or potassium.
The ordinary yellow solution of ammonium sulphide used in the laboratory had the same effect as the K{2}S.
Another portion of the mixture of nitro-glycerin with ammoniumsulphide was treated with excess of PbCO{3} and a little lead acetate, filtered, and the ammonium nitrite detected in the solution.
Undoubtedly the best method of tinning a bit is that in use by the plumber who well knows the invaluable qualities of sal-ammoniac (ammonium chloride) for the purpose.
The blue-violet was obtained by the use of a filter box which contained a 5 per cent solution of copper ammonium sulphate.
The same kind of ruby glass was placed in each of the former, and a portion of the same solution of copper ammonium sulphate was put into each of the filter boxes for the latter.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "ammonium" in a variety of sentences. We hope that you will now be able to make sentences using this word.
