GB189821126A - Improvements in the Preparation and Manufacture of Hydrosulphurous Acid and Hydrosulphites. - Google Patents

Improvements in the Preparation and Manufacture of Hydrosulphurous Acid and Hydrosulphites.

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Publication number
GB189821126A
GB189821126A GB189821126DA GB189821126A GB 189821126 A GB189821126 A GB 189821126A GB 189821126D A GB189821126D A GB 189821126DA GB 189821126 A GB189821126 A GB 189821126A
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GB
United Kingdom
Prior art keywords
acid
hyposulphite
zinc
insoluble
calcium
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
Jacob Grossmann
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 GB189821126A publication Critical patent/GB189821126A/en
Expired legal-status Critical Current

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Abstract

21,126. Grossmann, J. Oct. 7. Hyposulphurous acid and hyposulphites. - Insoluble or sparingly-soluble hyposulphites, which are comparatively stable, are prepared by reducing calcium, barium, zinc, or lead sulphite or bisulphite with zinc and sulphuric acid, and then adding a hydrate, such as milk of lime. The calcium or other sulphate may be filtered off before adding the milk of lime. In a modification, a solution of neutral or slightly-alkaline hyposulphite, such as of sodium, or of hyposulphurous acid, may be treated with the hydrate, oxide, or chloride of calcium, barium, or zinc to precipitate the corresponding insoluble hyposulphite. The acid may be made from the insoluble or sparingly-soluble hyposulphite by adding a suitable acid, such as sulphuric acid, or an acid salt.
GB189821126D 1898-10-07 1898-10-07 Improvements in the Preparation and Manufacture of Hydrosulphurous Acid and Hydrosulphites. Expired GB189821126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189821126T 1898-10-07

Publications (1)

Publication Number Publication Date
GB189821126A true GB189821126A (en) 1899-09-02

Family

ID=32142445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189821126D Expired GB189821126A (en) 1898-10-07 1898-10-07 Improvements in the Preparation and Manufacture of Hydrosulphurous Acid and Hydrosulphites.

Country Status (1)

Country Link
GB (1) GB189821126A (en)

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