GB195366A - Improvements in or relating to the manufacture of hypochlorites - Google Patents
Improvements in or relating to the manufacture of hypochloritesInfo
- Publication number
- GB195366A GB195366A GB6458/23A GB645823A GB195366A GB 195366 A GB195366 A GB 195366A GB 6458/23 A GB6458/23 A GB 6458/23A GB 645823 A GB645823 A GB 645823A GB 195366 A GB195366 A GB 195366A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hypochlorous acid
- compound
- solvent
- water
- alcohol
- 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Chlorine is passed into water containing a compound such as calcium carbonate or sodium bicarbonate which will neutralize hydrochloric acid but not hypochlorous acid. The hypochlorous acid is then extracted from the solution by an organic solvent immiscible with water. The solvents mentioned are carbon tetrachloride, chloroform, tetrachlorethane, ethylene chloride, and ether, in each case with the addition of a small quantity of an alcohol such as methyl, ethyl, isopropyl or butyl alcohol; or one of these alcohols may be used alone, when a compound is formed with the hypochlorous acid which separates from the aqueous liquid and can be removed therefrom by decantation or by extraction with a solvent, or by a current of air.ALSO:Chlorine is passed into water containing a compound such as sodium bicarbonate or calcium carbonate which will neutralize hydrochloric but not hypochlorous acid. The hypochlorous acid is then extracted from the solution by a solvent which will not dissolve the chloride and is not miscible with water. The solvents mentioned are carbon tetrachloride, chloroform, ethylene chloride, tetrachlorethane, and ether, in each case with the addition of a small quantity of an alcohol such as methyl, ethyl, isopropyl or butyl alcohol; or one of these alcohols may be used alone, when a compound with the hypochlorous acid is formed which separates from the aqueous liquor and may be removed therefrom by decantation or by extraction with a solvent or by a current of air.ALSO:Chlorine is passed into water containing a compound such as sodium bicarbonate or calcium carbonate which will neutralize hydrochloric but not hypochlorous acid. The hypochlorous acid is then extracted from the solution by a solvent which will not dissolve the chloride and is not miscible with water. The solvents mentioned are carbon tetrachloride, chloroform, ethylene chloride, tetrachlorethane, and ether in each case with the addition of a small quantity of an alcohol such as methyl, ethyl, isopropyl or buty alcohol; or one of these alcohols may be used alone, when a compound with the hypochlorous acid is formed which separates from the aqueous liquor and may be removed therefrom by decantation or by extraction with a solvent or by a current of air. The solution or compound of hypochlorous acid is treated with a " strong alkali " such as sodium or potassium hydroxide or slaked lime to obtain a hypochlorite and regenerate the solvent. In the production of calcium hypochlorite enough water is added to give a small excess over the hydrated salt Ca(OCl)23H2O, but the product obtained contains a considerable proportion of free lime, most of which can be separated by treating with water, filtering, and evaporating the solution of hypochlorite to dryness.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US195366XA | 1922-03-25 | 1922-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB195366A true GB195366A (en) | 1924-01-03 |
Family
ID=21793721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6458/23A Expired GB195366A (en) | 1922-03-25 | 1923-03-06 | Improvements in or relating to the manufacture of hypochlorites |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB195366A (en) |
-
1923
- 1923-03-06 GB GB6458/23A patent/GB195366A/en not_active Expired
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