US3919103A - Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate - Google Patents
Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate Download PDFInfo
- Publication number
- US3919103A US3919103A US356350A US35635073A US3919103A US 3919103 A US3919103 A US 3919103A US 356350 A US356350 A US 356350A US 35635073 A US35635073 A US 35635073A US 3919103 A US3919103 A US 3919103A
- Authority
- US
- United States
- Prior art keywords
- trichloroisocyanuric acid
- sodium dichloroisocyanurate
- incomplete
- decomposition
- hydrated sodium
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/395—Bleaching agents
- C11D3/3955—Organic bleaching agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
Definitions
- This invention relates to chlorinated isocyanurates, particularly to blends of hydrated sodium dichloroisocyanurate and trichloroisocyanuric acid.
- chlorinated cyanurie acids and their salts are well known as a source of active chlorine and are widely used in water supplies to prevent the growth of pathogenic bacteria in swimming pools and in detergent and sanitizing compositions.
- chlorinated isocyanurates Of all the chlorinated isocyanurates.
- trichloroisocyanuric acid has the highest chlorine content and accordingly is often the preferred member of the series.
- trichloroisocyanuric acid is susceptible to a peculiar type of chemical instability as manifested by the evolution of noxious nitrogen trichloride fumes in the event the material remains in contact with air. It is generally conceded that moisture in the air is the causative factor in the breakdown since the effect is less severe under desiccated conditions.
- the trichloroisocyanuric acid and hydrated sodium dichloroisocyanurate are blended together in the usual manner of mixing solid 2 materials.
- suitable mixing devices include rotating trays. ribbon blendors. tumblers or other low energy comminuting equipment.
- the mixture may also be compacted under pressure and then ground to the desired particle size for maximum homogeneity.
- the proportion of the two components may vary con siderably. For instance. only a small amount of the hydrated sodium dichloroisocyanurate is required to chemically stabilize the trichloroisocyanuric acid. In general. satisfactory results can be achieved wherein the mixture contains any amount in excess of about li by weight of the hydrated salt.
- compositions of the invention possess greater water solubility than trichloroisocyanuric acid alone.
- the upper range of the hydrate will tend to be a compromise between solubility and chlorine content of the mixture.
- high solubility is required then more of the hydrate will be needed at the expense of available chlorine.
- Those skilled in the art will select the ratio of trichloroisocyanuric acid to hydrated sodium dichloroisocyanurate best suited to their particular needs.
- hydrated sodium dichloroisocyanurate encompasses sodium dichloroisocyanurate monohydrate. having a water of crystallization content of 7% and sodium dichloroisoeyanurate dihydrate having a water of crystallization content of 14% as well as mixtures of the two hydrates.
- the chemically stabilized trichloroisocyanuric acid compositions of the invention are thermally stable. That is to say. the compositions are not subject to the self-sustaining. thermally initiated decomposition peculiar to anhydrous sodium dichloroisocyanurate. the active agent in many dry bleach formulations which are sold commercially. Such thermal stability is exhibited in any ratio of trichloroisocyanuric acid to sodium dichloroisocyanuratc dihydrate.
- Compositions herein containing up to about by weight of sodium dichloroisocyanurate monohydrate are likewise thermally stable as above de scribed. The latter is rather unusual and unexpected since the monohydr ate itself undergoes self-sustaining.
- EXAMPLE 2 Various concentrations of sodium dichloroisocyanurate dihydrateltrichloroisocyanuric acid blends were tested for progressive. thermally initiated decomposition. An l8 gage nichrome wire was embedded in a 25 gram sample. The wire was heated by passing a current through it for several seconds. until the material in contact with the wire decomposed. The current was turned off and the decomposition was observed to determine the tendency for self-propagation.
- compositions containing trichloroisocyanuric acid and sodium dichloroisocyanurate exhibited comparable stability.
- a chlorine dry bleach containing as its essential ingredients trichloroisocyanurie acid and hydrates of so dium dichloroisocyanurate as a chemical stabilizer therefor at least about 1% by weight of the composition.
- composition according to claim l wherein the chemical stabilizer is sodium dichloroisocyanurate monohydrate.
- composition according to claim 1 wherein the chemical stabilizer is sodium dichloroisocyanurate dihydrate.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Detergent Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Priority Applications (18)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US356350A US3919103A (en) | 1972-11-24 | 1973-05-02 | Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate |
| CA183,491A CA1007808A (en) | 1972-11-24 | 1973-10-16 | Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate |
| AU61543/73A AU477101B2 (en) | 1972-11-24 | 1973-10-18 | Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate |
| AR250746A AR196461A1 (es) | 1972-11-24 | 1973-10-29 | Blanqueador clorado seco |
| FI3351/73A FI55057C (fi) | 1972-11-24 | 1973-10-30 | Triklorisocyanursyra stabiliserad med hydratiserat natriumdiklorisocyanurat som blekningsmedel |
| NL7314945A NL7314945A (de) | 1972-11-24 | 1973-10-31 | |
| ES420260A ES420260A1 (es) | 1972-11-24 | 1973-11-05 | Procedimiento para la obtencion de composiciones secas de blanqueo. |
| JP48124074A JPS4982591A (de) | 1972-11-24 | 1973-11-06 | |
| IT31307/73A IT1001757B (it) | 1972-11-24 | 1973-11-14 | Composizione a base di acido tri cloroisocianurico stabilizzato con idrati di sodio dicloroisocianurato |
| AT976073A AT331759B (de) | 1972-11-24 | 1973-11-21 | Chlorhaltiges trockenbleichmittel |
| GB5393473A GB1409385A (en) | 1972-11-24 | 1973-11-21 | Bleaches containing trichloroisocyanuric acid and hydrated sodium dichloroisocyanurate |
| FR7341489A FR2208022B1 (de) | 1972-11-24 | 1973-11-21 | |
| DE2358250A DE2358250A1 (de) | 1972-11-24 | 1973-11-22 | Chlorhaltige trockenbleichmittel |
| SE7315924A SE412845B (sv) | 1972-11-24 | 1973-11-23 | Stabiliserad torr komposition med blekverkan och goda lagringsegenskaper, vilken sasom blekmedel innehaller triklorisocyanursyra |
| DK634273AA DK139685B (da) | 1972-11-24 | 1973-11-23 | Chlorholdigt tørt blegemiddel indeholdende en blanding af trichlorisocyanursyre og dichlorisocyanurat. |
| CH1654173A CH583775A5 (de) | 1972-11-24 | 1973-11-23 | |
| NO4488/73A NO143110C (no) | 1972-11-24 | 1973-11-23 | Toert klorblekemiddel inneholdende stabilisert triklorisocyanursyre |
| BE138143A BE807771A (fr) | 1972-11-24 | 1973-11-23 | Compositions de blanchiment seches et chlorees |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30959972A | 1972-11-24 | 1972-11-24 | |
| US356350A US3919103A (en) | 1972-11-24 | 1973-05-02 | Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3919103A true US3919103A (en) | 1975-11-11 |
Family
ID=26976919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US356350A Expired - Lifetime US3919103A (en) | 1972-11-24 | 1973-05-02 | Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US3919103A (de) |
| JP (1) | JPS4982591A (de) |
| AR (1) | AR196461A1 (de) |
| AT (1) | AT331759B (de) |
| AU (1) | AU477101B2 (de) |
| BE (1) | BE807771A (de) |
| CA (1) | CA1007808A (de) |
| CH (1) | CH583775A5 (de) |
| DE (1) | DE2358250A1 (de) |
| DK (1) | DK139685B (de) |
| ES (1) | ES420260A1 (de) |
| FI (1) | FI55057C (de) |
| FR (1) | FR2208022B1 (de) |
| GB (1) | GB1409385A (de) |
| IT (1) | IT1001757B (de) |
| NL (1) | NL7314945A (de) |
| NO (1) | NO143110C (de) |
| SE (1) | SE412845B (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0008475A1 (de) * | 1978-08-21 | 1980-03-05 | Shell Internationale Researchmaatschappij B.V. | Verfahren zur Herstellung von Bleichmitteln auf Peroxid-Basis und konzentrierte Bleichmittelzusammensetzungen zur Verwendung bei der Durchführung dieses Verfahrens |
| DE3212216A1 (de) * | 1981-04-01 | 1982-12-02 | Nissan Chemical Industries, Ltd., Tokyo | Verfahren zum entfernen von pilzen auf haeuten |
| WO2000052126A1 (en) * | 1999-03-01 | 2000-09-08 | Babson Bros. Co. | Compositions and method for cleaning and sanitizing dairy udder cloths |
| WO2011017786A1 (en) * | 2009-08-12 | 2011-02-17 | Multclor Química Imp. E Exp. Ltda. | Oxygenated chlorine for treatment of water and its respective process of obtainment and application |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2649090A1 (en) * | 1989-06-30 | 1991-01-04 | Barvil Sarl | Cartridge for disinfecting water, especially in a swimming pool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2980622A (en) * | 1956-04-23 | 1961-04-18 | Monsanto Chemicals | Stabilized trichlorocyanuric acid compositions |
| US3035057A (en) * | 1961-09-26 | 1962-05-15 | Monsanto Chemicals | Dichloroisocyanurate process and products |
| US3178372A (en) * | 1960-12-07 | 1965-04-13 | Azote Office Nat Ind | Stabilized trichlorocyanuric acid compositions |
| US3397206A (en) * | 1967-06-28 | 1968-08-13 | Olin Mathieson | Production of chloroisocyanurates |
-
1973
- 1973-05-02 US US356350A patent/US3919103A/en not_active Expired - Lifetime
- 1973-10-16 CA CA183,491A patent/CA1007808A/en not_active Expired
- 1973-10-18 AU AU61543/73A patent/AU477101B2/en not_active Expired
- 1973-10-29 AR AR250746A patent/AR196461A1/es active
- 1973-10-30 FI FI3351/73A patent/FI55057C/fi active
- 1973-10-31 NL NL7314945A patent/NL7314945A/xx not_active Application Discontinuation
- 1973-11-05 ES ES420260A patent/ES420260A1/es not_active Expired
- 1973-11-06 JP JP48124074A patent/JPS4982591A/ja active Pending
- 1973-11-14 IT IT31307/73A patent/IT1001757B/it active
- 1973-11-21 AT AT976073A patent/AT331759B/de not_active IP Right Cessation
- 1973-11-21 FR FR7341489A patent/FR2208022B1/fr not_active Expired
- 1973-11-21 GB GB5393473A patent/GB1409385A/en not_active Expired
- 1973-11-22 DE DE2358250A patent/DE2358250A1/de active Pending
- 1973-11-23 BE BE138143A patent/BE807771A/xx unknown
- 1973-11-23 SE SE7315924A patent/SE412845B/xx unknown
- 1973-11-23 DK DK634273AA patent/DK139685B/da unknown
- 1973-11-23 CH CH1654173A patent/CH583775A5/xx not_active IP Right Cessation
- 1973-11-23 NO NO4488/73A patent/NO143110C/no unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2980622A (en) * | 1956-04-23 | 1961-04-18 | Monsanto Chemicals | Stabilized trichlorocyanuric acid compositions |
| US3178372A (en) * | 1960-12-07 | 1965-04-13 | Azote Office Nat Ind | Stabilized trichlorocyanuric acid compositions |
| US3035057A (en) * | 1961-09-26 | 1962-05-15 | Monsanto Chemicals | Dichloroisocyanurate process and products |
| US3397206A (en) * | 1967-06-28 | 1968-08-13 | Olin Mathieson | Production of chloroisocyanurates |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0008475A1 (de) * | 1978-08-21 | 1980-03-05 | Shell Internationale Researchmaatschappij B.V. | Verfahren zur Herstellung von Bleichmitteln auf Peroxid-Basis und konzentrierte Bleichmittelzusammensetzungen zur Verwendung bei der Durchführung dieses Verfahrens |
| DE3212216A1 (de) * | 1981-04-01 | 1982-12-02 | Nissan Chemical Industries, Ltd., Tokyo | Verfahren zum entfernen von pilzen auf haeuten |
| US4390339A (en) * | 1981-04-01 | 1983-06-28 | Nissan Chemical Industries, Ltd. | Method for removal of fungi formed on hides |
| WO2000052126A1 (en) * | 1999-03-01 | 2000-09-08 | Babson Bros. Co. | Compositions and method for cleaning and sanitizing dairy udder cloths |
| WO2011017786A1 (en) * | 2009-08-12 | 2011-02-17 | Multclor Química Imp. E Exp. Ltda. | Oxygenated chlorine for treatment of water and its respective process of obtainment and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CH583775A5 (de) | 1977-01-14 |
| BE807771A (fr) | 1974-05-24 |
| FI55057B (fi) | 1979-01-31 |
| NL7314945A (de) | 1974-05-28 |
| IT1001757B (it) | 1976-04-30 |
| AR196461A1 (es) | 1973-12-27 |
| NO143110B (no) | 1980-09-08 |
| DE2358250A1 (de) | 1974-05-30 |
| AU477101B2 (en) | 1976-10-14 |
| DK139685B (da) | 1979-03-26 |
| FR2208022A1 (de) | 1974-06-21 |
| CA1007808A (en) | 1977-04-05 |
| SE412845B (sv) | 1980-03-24 |
| AT331759B (de) | 1976-08-25 |
| ATA976073A (de) | 1975-12-15 |
| GB1409385A (en) | 1975-10-08 |
| NO143110C (no) | 1980-12-17 |
| FI55057C (fi) | 1979-05-10 |
| FR2208022B1 (de) | 1977-06-10 |
| JPS4982591A (de) | 1974-08-08 |
| AU6154373A (en) | 1975-04-24 |
| ES420260A1 (es) | 1977-01-16 |
| DK139685C (de) | 1979-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: OLIN CORPORATION, 120 LONG RIDGE ROAD, STAMFORD, C Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FMC CORPORATION, 2000 MARKET STREET, PHILADELPHIA, PA., A CORP. OF DE.;REEL/FRAME:004467/0590 Effective date: 19850816 |