GB700583A - A process for the production of the monozinc salt of hydroxymethane sulphinic acid from the dizinc salt - Google Patents

A process for the production of the monozinc salt of hydroxymethane sulphinic acid from the dizinc salt

Info

Publication number
GB700583A
GB700583A GB25916/51A GB2591651A GB700583A GB 700583 A GB700583 A GB 700583A GB 25916/51 A GB25916/51 A GB 25916/51A GB 2591651 A GB2591651 A GB 2591651A GB 700583 A GB700583 A GB 700583A
Authority
GB
United Kingdom
Prior art keywords
zinc
salt
mono
solution
sulphinate
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
GB25916/51A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB700583A publication Critical patent/GB700583A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C313/00—Sulfinic acids; Sulfenic acids; Halides, esters or anhydrides thereof; Amides of sulfinic or sulfenic acids, i.e. compounds having singly-bound oxygen atoms of sulfinic or sulfenic groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C313/02—Sulfinic acids; Derivatives thereof
    • C07C313/04—Sulfinic acids; Esters thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)

Abstract

The mono-zinc salt of hydroxy methane sulphinic acid is prepared by acting on an aqueous suspension of the di-zinc salt with sulphurous acid, separating the zinc sulphite formed and recovering the mono-zinc sulphinate from the solution. Preferably, sulphur dioxide is fed into the aqueous suspension with vigorous stirring at not above 25 DEG C. until the reducing power of a filtered sample of the solution no longer increases whereupon the solution is filtered to remove the zinc sulphite and the solution of mono-zinc sulphinate is evaporated down. An example is given.ALSO:Zinc sulphite is obtained in the production of mono-zinc hydroxy methane sulphinate (see Group IV(b)) and may be converted by means of formaldehyde into its formaldehyde compound and the latter reduced with zinc dust, or it may be converted into zinc bisulphite and the latter reduced with zinc dust to zinc hyposulphite.
GB25916/51A 1950-11-07 1951-11-06 A process for the production of the monozinc salt of hydroxymethane sulphinic acid from the dizinc salt Expired GB700583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE700583X 1950-11-07

Publications (1)

Publication Number Publication Date
GB700583A true GB700583A (en) 1953-12-02

Family

ID=6609560

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25916/51A Expired GB700583A (en) 1950-11-07 1951-11-06 A process for the production of the monozinc salt of hydroxymethane sulphinic acid from the dizinc salt

Country Status (1)

Country Link
GB (1) GB700583A (en)

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