GB809527A - Diatomic iodine-forming composition and method of making the same - Google Patents
Diatomic iodine-forming composition and method of making the sameInfo
- Publication number
- GB809527A GB809527A GB4938/57A GB493857A GB809527A GB 809527 A GB809527 A GB 809527A GB 4938/57 A GB4938/57 A GB 4938/57A GB 493857 A GB493857 A GB 493857A GB 809527 A GB809527 A GB 809527A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonamide
- chloramine
- composition
- produce
- hydration
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/12—Iodine, e.g. iodophors; Compounds thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
In a composition adapted to be dissolved in water to produce a germicidal iodine solution which comprises an N-monochlorosulphonamide, e.g. chloramine-B or chloramine-T, and an iodide, e.g. potassium iodide, capable of reacting with the sulphonamide in the presence of water to produce iodine, the sulphonamide has been partially dehydrated to such an extent that substantial reaction and release of iodine does not take place during storage of the composition, while the crystal structure of the fully hydrated sulphonamide is retained. The lower limit of the degree of hydration of the partially dehydrated sulphonamide, expressed in mols. of water per mol. of anhydrous sulphonamide, is about 0.5. The upper limit depends somewhat on the sulphonamide employed. It is about 1.5 for chloramine-T and about 1.75 for chloramine-B. Example I specifies the use of chloramine-T which has been heated in vacuo at a temperature of 85 DEG C. to produce a product having a degree of hydration of 1 and a relative vapour pressure of 0.1, in a composition which also comprises potassium iodide, citric acid and sodium bicarbonate. Example II specifies the use of chloramine-B which has been heated in vacuo at a temperature of 90 DEG C. to produce a product having a degree of hydration of 1.25 and a relative vapour pressure of less than 0.1 in a composition which also comprises potassium iodide and sodium dihydrogen phosphate.ALSO:In a composition adapted to be dissolved in water to produce a germicidal iodine solution which comprises an N-monochlorosulphonamide, e.g. chloramine-B or chloramine-T, and an iodide, e.g. potassium iodide, capable of reacting with the sulphonamide in the presence of water to produce iodine, the sulphonamide has been partially dehydrated to such an extent that substantial reaction and release of iodine does not take place during storage of the composition, while the crystal structure of the fully hydrated sulphonamide is retained. The lower limit of the degree of hydration of the partially dehydrated sulphonamide, expressed in mols. of water per mol. of anhydrous sulphonamide is about 0.5. The upper limit depends somewhat on the sulphonamide employed. It is about 1.5 for chloramine-T and about 1.75 for chloramine-B. Example I specifies the use of chloramine-T which has been heated in vacuo at a temperature of 85 DEG C. to produc a product having a degree of hydration of 1 and a relative vapour pressure of 0.1, in a composition which also comprises potassium iodide, citric acid and sodium bicarbonate. Example II specifies the use of chloramine-B which has been heated in vacuo at a temperature of 90 DEG C. to produce a product having a degree of hydration of 1.25 and a relative vapour pressure of less than 0.1 in a composition which also comprises potassium iodide and sodium dihydrogen phosphate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US809527XA | 1956-02-21 | 1956-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB809527A true GB809527A (en) | 1959-02-25 |
Family
ID=22160717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4938/57A Expired GB809527A (en) | 1956-02-21 | 1957-02-13 | Diatomic iodine-forming composition and method of making the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB809527A (en) |
-
1957
- 1957-02-13 GB GB4938/57A patent/GB809527A/en not_active Expired
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