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205 results
  1. ... containing about 2 per cent, of ammonia water. Alizarin Red, for Leather. A feeble flesh color is ... brush- ing the leather with a solution of alizarin in dilute soda, and then rinsing with soap- ...
  2. NLM Digital Collections - Methods for laboratory technicians, 1941 
    Publication: Washington, D.C. : U.S. G.P.O., 1941
    ... weak bases and thylaniline. 6.3. ous. ammonia. Alizarin red Sodium alizarin monosul- 4 to 5_. Yellow.. Purple _ _ 1 percent ... this alkali. (/) Caprylic alcohol. (y) Methyl red or alizarin indicator solution. (2) Procedure.— (a) Prepare five aeration ...
  3. ... most interesting of the colouring substances is the alizarin of Bobiquet and Collin. It may be obtained ... by precipitating a mixture of the solutions of alizarin and alum. Bochleder finds a close analogy between ...
  4. NLM Digital Collections - Industrial poisons in the United States 
    Publication: New York : Macmillan Co., 1925
    ... made from potassium bichromate and lead acetate, and alizarin colors are made by oxidizing anthracene to anthraquinone ... is derived from orthotoluidin and is used in alizarin color manufacture. It is known to physicians as ...
  5. ... sodium hydrate. One per cent aqueous solution of alizarin red. The apparatus required includes aerometer cylinders (45 ... tenth normal sodium hydrate, using two drops of alizarin red to 200 to 300 c.c. of ...
  6. ... 93° and boiling at 285°. This is acenaphtene ALIZARIN. 39 C12H10. Another hydrocarbide is also found in ... to repro- duce the coloring principle of madder; alizarin CI4II804. It is obtained on oxydizing anthracene by ...
  7. ... and boiling at 285°. This is acenaphtene 39 ALIZARIN". C12II10. Another hydrocarbide is also found in this ... to repro- duce the coloring principle of madder; alizarin CI41I804. It is obtained on oxydizing anthracene by ...
  8. ... due to the fact that artificial madder, or alizarin, is formed from it by the following reactions: ... and anthracene.—Explain by equations the production of alizarin or artificial madder.—Give tests for distin- guishing ...
  9. ... most interesting of the colouring substances is the alizarin of llobiquet and Collin. It may be obtained ... by precipitating a mixture of the solutions of alizarin and alum. Rochleder finds a close analogy between ...
  10. ... most interesting of the colouring substances is the alizarin of Robiquet and Collin. It may be obtained ... by precipitating a mixture of the solutions of alizarin and alum. Roehleder finds a close analogy between ...
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