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
Application number
Inventor
James Yate Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB190523122ApublicationCriticalpatent/GB190523122A/en
Coloring Foods And Improving Nutritive Qualities
(AREA)
Abstract
23,122. Johnson, J. Y., [Badische Anilin & Soda Fabrik]. Nov. 10. Dyes, artificial.-Consists in the production of alkali salts of indigo-white in a solid form stable to air by evaporating to dryness a solution of such salts in vacuo. In an example, indigo reduced by iron and alkali is used. The dry product may be mixed with burnt lime.
GB190523122D1905-11-101905-11-10The Manufacture and Production of Solid Stable Alkali-salts of Indigo-white.
ExpiredGB190523122A
(en)