This insolubility of the aniline colours in paraffin has been suggested as a test for the purity of this hydrocarbon, and of its freedom from stearic or other fatty acids.
Sidenote: Wood Stain Mixing] These stains are modified and reduced in chroma and value by mixing them with nigrosene black, an aniline dye of blue black appearance, which fills all the needs of an ivory black in water or oil color pigment.
Aniline dye for water stains readily dissolves in water while a special aniline for oil staining is first cut with naphtha.
Name the three basic aniline wood dyes and give their relation to the three primary hues.
Sidenote: Color Changes of the Stain] Aniline dyes are apt to fade if exposed to full sunlight.
As in other stains, nigrosene is added to reduce the full chromatic intensities of the aniline to the proper value and chroma of olive green stain.
This calls for a mixture of metanil yellow and brilliant scarlet aniline to form the orange hue.
How does its application to wood effect the color and value of aniline stain?
The pads most commonly used with office stamps are made of variously prepared gelatine, covered with fine silk to protect the surface, and saturated with an aniline dye.
The impression took the place of the scroll work on an ordinary cheque; it was in violet aniline ink, and looked decidedly pretty.
If the aniline speedily disappears, leaving the colorless whiting base, the purchaser has just cause to question the quality of the material.
Also, always refrain from buying a cheap, inferior lake, the chief constituents of which are whiting and aniline dye.
These old blankets are becoming more and more rare, and to-day in their places we have the bright and not always satisfactory results ofaniline dyes.
It can be dyed easily, and with little expense, with Diamond or aniline dyes.
It may be remarked that there are many aniline dyes which are more durable than vegetable ones, although there are others which merit their reputation for instability.
A purer benzol was subsequently required for the manufacture of aniline black and other dye-stuffs.
The application of aniline colours to ink manufacture in England dates from Croc's patent of 1861.
When warmed with aniline it yields anilido-aposafranine, which may also be obtained by the direct oxidation of ortho-aminodiphenylamine.
Solutions of aniline dye-stuffs in water are widely used as inks, especially coloured varieties.
Copying ink pencils consist of a base of graphite and kaolin impregnated with a very strong solution of an aniline colour, pressed into sticks and dried.
Olive oil, stearine, and camphor are incorporated in a melted condition withaniline of the required hue.
The colour was at first derived from a piece of blue aniline pencil, carried in the pocket, and upon the point of which the finger was secretly rubbed.
For red, aurosine is used, and for blue aniline blue.
The forces of surface tension prevent the whole of the aniline from falling--the water surface can sustain a certain weight of the liquid--but the surplus weight cannot be held, and therefore breaks away.
It forms the basis of the beautiful and varied colouring materials known as the aniline dyes, which we owe to the skill of the chemist.
I now open the taps, so that the aniline may flow gradually into each beaker; and you notice that the drops of aniline sink through the cold water and rise through the hot.
Aniline dissolves more freely in hot water than in cold, so that if I remove the flame, and allow the beaker to cool, the surplus of dissolved aniline will settle out.
Then, unaided, it rises to the top and mingles itself with the anilinewhich remained on the surface.
It may be added that occasional samples of aniline show similar movements, but of less intensity.
So with our aniline drop, which derives its energy from the heat of the water, and which comes to rest immediately the temperature falls below 147 deg.
If we allow a small quantity of aniline to run on to the surface of water, it forms itself into a number of floating globules.
Aniline is an oily liquid, which, unless specially purified, has a deep red colour.
After a short time, however, all the aniline floats to the surface, having been warmed by contact with the water to a temperature higher than that of equi-density (147 deg.
Gradually, it narrows at the neck and breaks away; but as aniline is a viscous liquid, the neck in this case is long and therefore easily seen.
When cheap colored edges are to be produced even aniline colors can be taken into consideration.
A bright lustrous shade is obtained by adding some red aniline color.
The chief poisonous dyes are the red and yellow coralline, substances derived from that series of chemical bodies which have been obtained of late years from coal tar, and commonly known as the aniline series.
It is used in the manufacture of aniline dyes, in making varnishes, and for burning in spirit lamps.
Large quantities of it are used in the manufacture of the aniline or coal-tar dyes, which include many important compounds.
Stain with aniline gentian violet, and partially decolourise with 2 per cent.
Stain thirty minutes in a tar-like solution of aniline gentian violet (prepared by adding 15 drops of the alcoholic solution of gentian violet to 3 drops of aniline water).
The Creamometer] The colour should be like that of porcelain, but, as already stated, it is a common thing for the dairyman to add a small quantity of anatto or an aniline dye of a similar shade, to give the milk a rich creamy tint.
All strains are readily stained by the usual aniline dyes.
The poorest aniline dye eats into the rug, and the color fades.
The poorest aniline dyes are used, and it seems hardly possible that the splendid specimens of the fourteenth to the end of the seventeenth century were woven in Morocco.
Unfortunately, aniline dyes are now largely used, and even the designs are less artistic than in former years.
Aniline dyes prevail, and the rugs are of inferior design and texture.
Some are very beautiful; and although many are turned out with aniline dyes, many others are splendidly colored with vegetable dyes.
The aniline dyes are, of course, not to be compared to the vegetable, although the best of them are not to be utterly condemned.
The floral designs scattered over the field of rose, dark red, or blue show a spontaneity of workmanship that is not governed by Western enterprise, though, curiously enough, aniline dyes prevail.
While the solution is still hot, add a small quantity of aniline dye of the desired color that has been previously mixed in a small quantity of cold water.
An aniline color soluble in alcohol, by adding a little carbolic acid, will hold fast on celluloid.
Hofmann in 1858 from anilineand carbon tetrachloride.
Furfurol in minute quantities can be detected by the red colour it forms with a solution of aniline acetate.
Very recently there was issued to a German company a patent in which is described a method whereby furs can be dyed with Aniline Black by the dip process.
However, it was not until the last decade of the nineteenth century that the dyeing of furs by means of the Aniline Black method was successfully attempted.
The method of application is practically the same as for the other Aniline Black processes, chlorates being used as the oxidizing agents, in the presence of oxygen carriers such as salts of copper and vanadium.
Aniline salt is aniline oil which has been neutralized with the exact quantity of hydrochloric acid to form the hydrochloride.
This method of dyeing has several advantages over the One-bath Aniline Black.
These aniline purples are but another indication that we may expect such advance in the science of pigment manufacture in the comparatively near future that a much purer line of standards may be secured than is now possible in papers.
White Blotting Paper is saturated with Aniline Black, and several sheets are pasted together, so as to form a thick pad.
The crystals of Aniline are powdered and dissolved in the boiling distilled water, and the other ingredients then added.
Dissolve Aniline in hot Glycerine, and strain while hot or warm.
But as he folded the paper carefully about her generous purchase, he didn't trouble her with the details of the subsequent aniline bath to which they were subjected, and of which they bore plain evidence upon close scrutiny.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "aniline" in a variety of sentences. We hope that you will now be able to make sentences using this word.