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Oliver Imray
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Publication of GB190415223ApublicationCriticalpatent/GB190415223A/en
15,223. Imray, O., [Basle Chemical Works]. July 7. Dyes, artificial.-Indoxyl derivatives are formed from arylglycines or their derivatives by the addition to the ingredients described in Specification No. 26,061, A D. 1901, of alcohol. In an example, alcohol vapour is fed into a heated mixture of sodium, phenylglycine potassium salt, and caustic alkali, by the aid of a current of hydrogen. The alcohol may however be used in the liquid form. The Provisional Specification mentions the use of arylglycine anilides or glycides, and a-arylhydantoins.
GB190415223D1904-07-071904-07-07Improved Manufacture of Indoxyl, its Homologues and their Derivatives.
ExpiredGB190415223A
(en)
The decomposition of sulphur compounds in coal gas, water gas, producer gas, waste furnace gas or other combustible power gas, or in bye-products obtained in the manufacture thereof