The assay office, with its smell of nitric acid, its burned fumes, its clutter of broken cupels and slag, was unbearable.
And so they hikes and have got this far, where they lay over for the night to comfort their insides with somethin' that smelled like a cross between nitric acid, a corn farm, and sump water.
The insoluble residue was treated with fuming nitric acid.
Thus, if certain proportions of alcohol and nitric acid be mixed together and heated, nitrite of amyl, so serviceable in relieving the agonizing spasms peculiar to that dread disease, angina pectoris, will be obtained.
They may generally be removed by the application of glacial acetic acid, or a drop of nitric acid, repeated until the entire structure is softened.
Nitric acid occurs in nature, in a combination called nitrates.
Nitric acid acts through oxidation, the substances are burned up by the oxygen given off from the acid.
Nitric and sulphuric acids are used to clean work.
It is cleaned with kerosene and dipped in nitricacid as before explained.
After the partitions have been formed, the object must be thoroughly cleaned and brightened by dipping in a bath of nitric acid.
If, when cool, it is found that the channels in places are not full of enamel, the object is again cleaned in the nitric acid, more enamel applied, and fired as at first.
Harden the latter in Müller’s fluid, decalcify adult specimens in chromic and nitric fluid.
Proper cleansing is best effected by placing the covers when bought in a shallow wide mouthed stoppered bottle containing strong nitric acid, and leaving them in this fluid for twenty-four hours.
It is a very useful decalcifying agent, but causes the fibrous elements to swell up rather more than chromic and nitric fluid.
Decalcify in chromic and nitric fluid, and cut both vertical and transverse sections.
They should be cleaned with nitric acid and alcohol according to the directions on page 57.
Specimens should be decalcified in chromic and nitric fluid, and the hardening completed in spirit.
The two best fluids for general use are:-- *Chromic and nitric fluid.
I first take clam shells and, after cleaning, place them in a solution composed of about one part of commercial nitric acid and three parts of water, in which the shells are allowed to remain about twenty minutes.
This is the familiar yellow coloration which is produced whenever nitric acid comes in contact with animal flesh.
When boiled with nitric acid, it is oxidized to mucic, saccharic, and oxalic acids.
It can be prepared by digesting red lead with warm dilute nitric acid; washing and drying the residue.
Nitric oxide is a colourless gas very slightly soluble in water.
Dissolve the precipitate in dilute hydrochloric acid; peroxidise with a few drops of nitric acid and boil, dilute to about 200 c.
Add dilute hydrochloric acid in small excess to the hot dilute solution, which must contain free nitric acid.
Dry, ignite with nitric acid, and weigh as magnesic pyrarsenate.
The thin sheet of metal is dropped into hot dilute nitric acid and boiled for five or six minutes after the brisk action of the acid on the metal has ceased.
In alloys it may be found by dissolving them in nitric acid or in aqua regia, evaporating with hydrochloric acid, and treating the filtrate with ammonic chloride and alcohol.
Boil off the sulphuretted hydrogen and peroxidise with a few drops of nitric acid.
Nickel is also determined by electrolysis, as follows:--The nitric acid solution is rendered strongly ammoniacal, and placed under the electrolytic apparatus used for the copper assay.
When much copper is present it is best separated in a nitric acid solution by electrolysis.
The filtrate is evaporated in a small porcelain dish, with the addition of nitric acid towards the finish.
Tungsten itself is insoluble in nitric acid or aqua regia; but is converted into tungstic acid (WO{3}) by prolonged and strong ignition in air.
Dissolve the precipitate in hydrochloric acid, oxidise with nitric acid, and precipitate with ammonia.
It has been suggested that electrical discharges in the air may form nitric acid, which would readily then unite with soil ingredients to form nitrates.
It may be prepared by steeping cotton wool for a few minutes in a mixture of nitricand sulphuric acids, thoroughly washing, and then drying at a very gentle heat.
Nitrogen occurs in the soil as organic nitrogen, nitric acid, nitrous acid, and ammonia.
Not merely does it help to decompose the organic matter so abundant in such soils, but it also furnishes the base with which the nitric acid may combine when it is formed.
The question, therefore, of greatest interest in connection with the formation of these nitrate-beds is, Whence has the nitric acid been derived?
Lime is the base with which the nitric acid, when it is formed, combines; and as we have seen, when discussing nitrification, soils of a chalky nature are among those best suited to promote the natural formation of nitrates.
According to Knop, small quantities of nitric acid are held in the insoluble condition in soils in the form of highly basic nitrates of iron and alumina.
Determination of the quantity of nitrogen supplied by rain, as ammonia andnitric acid, to an acre of land during one year 155 II.
That nitrogen and oxygen unite together to formnitric and nitrous oxides under the influence of intense heat, such as the electric spark, has been proved beyond doubt.
While it is true that plants can absorb nitrogen in certain organic forms and as ammonia salts, it is now a well-known fact that the chief, and by far the most important, source of nitrogen is nitric acid.
The reason of this is, that a chemical action is apt to ensue, resulting in the loss of the nitric acid in the nitrate of soda.
Ammonia, however, can only be oxidised to nitric acid by means of certain powerful oxidising agents, such as ozone or hydrogen peroxide.
Of this dissolved matter the largest proportion is made up of organic matter, nitric acid, lime, and soda salts.
The third form of nitrogen in the soil is nitric acid.
As in dissolving in hydrochloric acid and oxidizing with nitric acid the solution ought to be twice tested for protoxide of iron, even although at the first test none can be discovered.
The precipitate of silver sulphide is dissolved in hot nitric acid and determined as silver chloride.
As a less accurate but more rapid method, the ammoniacal solution of arsenic sulphide is cautiously neutralized with pure dilute nitric acid and considerably diluted.
Five cubic centimeters hydrochloric acid are now added, and the solution tested with red prussiate of potash for protoxide of iron, and the boiling continued till near dryness, when all the nitric acid is commonly driven off.
In order afterward, to drive off the nitric acid and get the manganese with certainty reduced to protoxide, the solution is boiled with a little hydrochloric acid.
After at least the half of the hydrochloric acid has been boiled away, there are added at least five cubic centimeters nitric acid of 1.
Geber, or Djafar, the alchemist, discovers nitric acid and aqua regia, i.
Djafar, or Geber, an Arabian chemist, describes nitricacid and aqua regia, i.
But when a puff of the fumes of hydrochloric acid, hydriodic acid, or nitric acid is thrown into the beam, there is a complete reversal of the selenite tints.
From chlorine to sulphurous acid, from nitric acid to rum, from sugar to sulphate of quinine,--all has been invoked in behalf of this unhappy insect.
The clear liquid now held up before you is a solution of nitrate of silver--a compound of silver and nitric acid.
The stability of endothermic bodies like nitric oxide and ozone at low temperatures requires further investigation.
A patiently executed specimen will, for instance, stand more etching than a hastily drawn one; while a grey stone will require more of the nitric acid than a yellow one.
Sodium and liquid oxygen and air, nitrous and nitric oxides, proved much more transparent than chlorine.
Such a wound should always be squeezed or sucked until it has bled freely, and then be cauterized by a red-hot iron or touched with an applicator that has been dipped in sulphuric acid or nitric acid.
They are insoluble in water and weak nitric acid, but dissolve rapidly in strong sulphuric acid without liberation of gas, and still more rapidly in caustic potash.
A bit of a Moth’s eye is cut out, treated with nitric acid to remove the pigment, and placed on a glass slip in the field of the microscope.
In order to clean brass articles, they are dipped into a mixture ofnitric and sulphuric acids, the temperature and strength of acid determining whether the dipping is bright or dead.
Alston, about 50 years ago; since then I have sold large quantities to the manufacturers of nitric acid.
Finally the bottom of the loop is immersed in nitric acid, which eats away the silver at that point and leaves the bare platinum.
To this the nitric acid adds oxygen and nitrogen, the sulphuric acid simply standing by, as it were, and removing the surplus water which arises during the process.
Nitrification will not take place in an acid solution; it is essential that some base should be present with which thenitric acid may combine; when all available base is used up, nitrification ceases.
The result of the experiment showed that only one-half the quantity of nitric acid was formed in the simple urine solution as in similar solutions containing calcium and sodium carbonate.
It is also well known that ammonia, and various nitrogenous organic matters, are the materials from which the nitric acid is produced.
In all cases in which amides or albuminoids were employed, the formation of ammonia preceded the production of nitric acid.
Then stretch a cotton cloth between two supports, and after plunging the file into nitric acid, use the stretched cloth to wipe off the acid.
It attacks and dissolves many metals and other intractable substances, sets free most acids from their salts, and is used in the manufacture of hydrochloric and nitric acids, of soda, of bleaching powders, etc.
It is obtained by the distillation of alcohol with nitric and sulphuric acids, and consists essentially of ethyl nitrite with a little acetic aldehyde.
It is deliquescent and cannot be used in gunpowder, but is employed in the production of nitric acid.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "nitric" in a variety of sentences. We hope that you will now be able to make sentences using this word.
