Laboratory Guide of Industrial Chemistry
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In our eReader you can find the full English version of the book. Read Laboratory Guide of Industrial Chemistry Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Laboratory Guide of Industrial Chemistry
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, 250 gms. And keep the temperature at 50 C.
DYEING OF TEXTILE FIBERS 91 In the course of the reduction which takes place, and which is tested in the usual way with a sheet of glass, more hydrosulphite solution is added in several portions. The reduced Indigo ought to run off fiom the sheet of glass as a yellow liquid which oxidizes in twenty to thirty seconds.
The cotton fiber is then dyed in the same manner as indicated in the case of the zinc vat.
178. The Hydrosulphite Vat (for wool). The p...rocess is essentially the same, except that the caustic soda must be replaced by milk of lime in sufficient amount to produce an alkaline reaction.
179. Turkey Red upon Cotton. The name " turkey-red " is applied to the color produced upon cotton by the aid of alizarine, alumina, lime, and fatty acid compounds. This fatty acid compound, known as " Turkey- red Oil, " is prepared by treating olive or castor oil with concen- trated sulphuric acid, usually 3 parts of acid to 10 parts of oil.
The acid is slowly poured into the oil with constant stirring, and the whole then allowed to stand until a sample of the product dissolves completely in water, whereupon it is poured into water and washed with a solution of sodium chloride until free from sulphuric acid.
What to read after Laboratory Guide of Industrial Chemistry?
You can find similar books in the "Read Also" column, or choose other free books by Allen Rogers to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
, 250 gms. And keep the temperature at 50 C.
DYEING OF TEXTILE FIBERS 91 In the course of the reduction which takes place, and which is tested in the usual way with a sheet of glass, more hydrosulphite solution is added in several portions. The reduced Indigo ought to run off fiom the sheet of glass as a yellow liquid which oxidizes in twenty to thirty seconds.
The cotton fiber is then dyed in the same manner as indicated in the case of the zinc vat.
178. The Hydrosulphite Vat (for wool). The p...rocess is essentially the same, except that the caustic soda must be replaced by milk of lime in sufficient amount to produce an alkaline reaction.
179. Turkey Red upon Cotton. The name " turkey-red " is applied to the color produced upon cotton by the aid of alizarine, alumina, lime, and fatty acid compounds. This fatty acid compound, known as " Turkey- red Oil, " is prepared by treating olive or castor oil with concen- trated sulphuric acid, usually 3 parts of acid to 10 parts of oil.
The acid is slowly poured into the oil with constant stirring, and the whole then allowed to stand until a sample of the product dissolves completely in water, whereupon it is poured into water and washed with a solution of sodium chloride until free from sulphuric acid.
What to read after Laboratory Guide of Industrial Chemistry?
You can find similar books in the "Read Also" column, or choose other free books by Allen Rogers to read onlineMoreLess
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