GB190410925A - Improvements in the Manufacture and Production of Indigo or Homologues or Derivatives thereof. - Google Patents

Improvements in the Manufacture and Production of Indigo or Homologues or Derivatives thereof.

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Publication number
GB190410925A
GB190410925A GB190410925DA GB190410925A GB 190410925 A GB190410925 A GB 190410925A GB 190410925D A GB190410925D A GB 190410925DA GB 190410925 A GB190410925 A GB 190410925A
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United Kingdom
Prior art keywords
homologues
derivatives
indigo
manufacture
production
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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Inventor
Leon Lilienfeld
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Individual
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Individual
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Publication date
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Publication of GB190410925A publication Critical patent/GB190410925A/en
Expired legal-status Critical Current

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Abstract

10,925. Lilienfeld, L. May 12. Dyes, artificial.-Indigo or its homologues or derivatives are produced by heating aromatic glycines or their homologues or derivatives with caustic alkalies in the presence of suitable condensing-agents, and either in vacuo, or when passing over, into, or through the mass a neutral or reducing gas. Suitable gases are ammonia, nitrogen, hydrogen, illuminating - gas, benzene, or ligroin. Suitable condensing-agents are alkali or alkaline-earth metals, magnesium, or alloys, oxides, or other compounds.
GB190410925D 1904-05-12 1904-05-12 Improvements in the Manufacture and Production of Indigo or Homologues or Derivatives thereof. Expired GB190410925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190410925T 1904-05-12

Publications (1)

Publication Number Publication Date
GB190410925A true GB190410925A (en) 1905-05-11

Family

ID=32625800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190410925D Expired GB190410925A (en) 1904-05-12 1904-05-12 Improvements in the Manufacture and Production of Indigo or Homologues or Derivatives thereof.

Country Status (1)

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GB (1) GB190410925A (en)

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