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
Philip Arthur Newton
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 GB190906831ApublicationCriticalpatent/GB190906831A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
6831. Newton, P. A., [Farbenfabriken vorm. F. Bayer & Co.]. March 22. 1 : 8-Diaminonaphthalene-4-sulphonic acid is obtained by heating the acid sulphate of 1 : 8- diaminonaphthalene, or a mixture of 1 : 8-diaminonaphthalene and sulphuric acid.
GB190906831D1909-03-221909-03-22Improvements in and relating to the Manufacture and Production of 1.8-diaminonaphthalene-4-sulphonic Acid.
ExpiredGB190906831A
(en)