GB190507592A - Improvements in the Manufacture and Production of Discharging Agents - Google Patents

Improvements in the Manufacture and Production of Discharging Agents

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Publication number
GB190507592A
GB190507592A GB190507592DA GB190507592A GB 190507592 A GB190507592 A GB 190507592A GB 190507592D A GB190507592D A GB 190507592DA GB 190507592 A GB190507592 A GB 190507592A
Authority
GB
United Kingdom
Prior art keywords
zinc
formaldehyde
acid
discharging
hydrosulphite
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190507592A publication Critical patent/GB190507592A/en
Expired legal-status Critical Current

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Abstract

7592. Johnson, J. Y., [Badische Anilin & Soda Fabrik]. April 10. Formaldehyde sulphoxylates, described in Specification No. 13,955, A.D. 1904, and applicable as discharging-agents, are prepared either by treating the zinc or ammonium salts of formaldehyde sulphurous acid, formaldehyde hyposulphurous (hydrosulphurous) acid, or the free acids with zinc, iron, or other metal having a reducing action, or by the interaction of formaldehyde, zinc or other reducing-metal, and a bisulphite or hyposulphite (hydrosulphite), or by passing sulphur dioxide into a suspension of zinc &c. in formaldehyde, free from extraneous acid. The zinc salt of formaldehyde sulphoxylic acid, which is produced when zinc is employed, can be used as a discharging-agent or may be converted by alkali or alkali salts into the known alkali salts. The formaldehyde zinc hyposulphite (hydrosulphite) obtained according to Specification No. 5867, A.D. 1903, can also be converted into formaldehyde zinc sulphoxylate by boiling with zinc dust &c.
GB190507592D 1905-04-10 1905-04-10 Improvements in the Manufacture and Production of Discharging Agents Expired GB190507592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190507592T 1905-04-10

Publications (1)

Publication Number Publication Date
GB190507592A true GB190507592A (en) 1905-11-16

Family

ID=32195253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190507592D Expired GB190507592A (en) 1905-04-10 1905-04-10 Improvements in the Manufacture and Production of Discharging Agents

Country Status (1)

Country Link
GB (1) GB190507592A (en)

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