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GB190406428A - Improvements in and relating to the Manufacture of a Condensation Product from Haematoxylin and Formaldehyde. - Google Patents

Improvements in and relating to the Manufacture of a Condensation Product from Haematoxylin and Formaldehyde.

Info

Publication number
GB190406428A
GB190406428A GB190406428DA GB190406428A GB 190406428 A GB190406428 A GB 190406428A GB 190406428D A GB190406428D A GB 190406428DA GB 190406428 A GB190406428 A GB 190406428A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
haematoxylin
relating
manufacture
condensation product
Prior art date
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
Roberto Lepetit
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190406428A publication Critical patent/GB190406428A/en
Expired legal-status Critical Current

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  • Medicines Containing Plant Substances (AREA)

Abstract

6428. Lepetit, R. March 16. Pigments. - A bronzing-powder is made by heating formaldehyde and hµmatoxylin or logwood extract with hydrochloric or sulphuric acid at 100‹ C., or formaldehyde and hµmatoxylin alone under pressure at above 100‹ C., and precipitating the product by pouring the mixture into large excess of cold water.
GB190406428D 1904-03-16 1904-03-16 Improvements in and relating to the Manufacture of a Condensation Product from Haematoxylin and Formaldehyde. Expired GB190406428A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190406428T 1904-03-16

Publications (1)

Publication Number Publication Date
GB190406428A true GB190406428A (en) 1904-04-21

Family

ID=32255184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190406428D Expired GB190406428A (en) 1904-03-16 1904-03-16 Improvements in and relating to the Manufacture of a Condensation Product from Haematoxylin and Formaldehyde.

Country Status (1)

Country Link
GB (1) GB190406428A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005689A1 (en) * 1985-03-29 1986-10-09 Moon Chang Kiu Drug, preparation and use thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005689A1 (en) * 1985-03-29 1986-10-09 Moon Chang Kiu Drug, preparation and use thereof

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