The shades obtained from these Eosine reds are remarkable for their brilliance, but unfortunately their fastness to light, washing, etc.
They will combine with bases such as soda, calcium and potash to form salts which are soluble in water, and it is usually in the form of sodium salts that these azo and acid dye-stuffs are sold to the dyer and calico printer.
The Manufacture of Industrial Alcohol from Surplus Stocks of Wine#, Spoilt Wine, Wine Marcs, and from Fruit in General.
This alternation from one roller to the other is continued as long as is deemed necessary, much depending on the depth of colour which is being dyed, some pale shades may only take two or three ends, deeper shades may take more.
Figure 21 shows a dye-bath built of iron, cased with copper, suitable for dyeing most colours on woollen cloths.
The intensity of some of the aniline colors may be indicated by the fact that a single grain of eosine in ten millions of water exhibits a definite rose-pink color.
Such inks are made from a fine, cheap powder, of which nigrosine is used in making black inks, eosine for red, and methylene for blue ink, and they cost only a few dimes a gallon to manufacture.
The suppression of the Dixon and Gray preparation of plates is the more surprising when I find eosine is mentioned in the Clayton and Tailfer claim, whereas Mr. Dixon assured me that eosine was not employed by them.
If the action of potassa is prolonged, modified eosine is blackened in consequence of the decomposition of the wool, the sulphur of which forms lead sulphide.
Rosolic acid and coralline, as well as eosine, are turned by hydrochloric acid to an orange-yellow: the two former are distinguished from eosine by their shade, which inclines to a yellow.
Eosine and hæmatoxyline form the best stain for the alimentary canal.
But it has the disadvantage of dissolving out many important staining reagents, especially eosine and the various aniline colours.
Stain in picrocarmine or preferably eosine and hæmatoxyline.
Very beautiful double staining effects may be obtained with either picrocarmine, or eosine and hæmatoxyline, and with eosine and methyl violet.
One specimen should be stained with osmic acid and picrocarmine and mounted in Farrant’s medium, and another in eosine and hæmatoxyline and mounted in Canada balsam.
The other sections may be stained in picrocarmine or eosineand hæmatoxyline.
Stain with eosine and logwood, eosine and alum carmine, or alum carmine and picric acid.
Stain in eosine and hæmatoxyline or in picrocarmine.
Stain all sections of epithelium in picrocarmine, and in eosine and hæmatoxyline.
After this treatment the cotton is ready for dyeing with any kind of acid, azo and even eosine dyes, and this is done in the same manner as is used in dyeing the eosines on a stannate mordant.
There is first the group of eosine dyes, which are acid derivatives of a colour-base, and, in virtue of being so, will combine with the metallic oxides.
The colour of these colour lakes is quite independent of what oxide is used, depending only on that of the particular eosine dye employed.
The dyes with the ponceaus are faster than those with eosine or safranine.
The chlorophyl plate was overexposed, brought out all colors better than the eosine plate, and gave full value to the bright scarlet of the hat, the detail in which was beautifully rendered.
The eosine plate was underexposed, but brought up everything fairly well except the scarlet hat, which came up like black.
If eosine solution is mixed with bromide of silver emulsion, which is entirely free from nitrate of silver, no eosine silver can form; it acts, therefore, only as an optical sensitizer.
To an emulsion after Monckhoven's method, I add, before filtering, above eosine solutions to 1,000 c.
The bluish shades of eosine colors, on the contrary, have an absorption band further in the yellow.
Further, it may be mentioned that it might be of advantage to add to all emulsions eosine besides iodide of silver, because this will give to the emulsion clearness and brilliancy besides color sensitiveness, and produce fine lights.
Although the eosine permits a large limit in the quantity, it will reduce the sensitiveness greatly in larger quantity.
This is also the case with the blue shade eosine (eosine B) and the most bluish of all eosines, the bengal rosa.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "eosine" in a variety of sentences. We hope that you will now be able to make sentences using this word.
