US3919103A - Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate - Google Patents

Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate Download PDF

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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
Application number
US356350A
Other languages
English (en)
Inventor
Sidney Berkowitz
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.)
Olin Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Priority to US356350A priority Critical patent/US3919103A/en
Priority to CA183,491A priority patent/CA1007808A/en
Priority to AU61543/73A priority patent/AU477101B2/en
Priority to AR250746A priority patent/AR196461A1/es
Priority to FI3351/73A priority patent/FI55057C/fi
Priority to NL7314945A priority patent/NL7314945A/xx
Priority to ES420260A priority patent/ES420260A1/es
Priority to JP48124074A priority patent/JPS4982591A/ja
Priority to IT31307/73A priority patent/IT1001757B/it
Priority to GB5393473A priority patent/GB1409385A/en
Priority to AT976073A priority patent/AT331759B/de
Priority to FR7341489A priority patent/FR2208022B1/fr
Priority to DE2358250A priority patent/DE2358250A1/de
Priority to CH1654173A priority patent/CH583775A5/xx
Priority to SE7315924A priority patent/SE412845B/xx
Priority to BE138143A priority patent/BE807771A/fr
Priority to DK634273AA priority patent/DK139685B/da
Priority to NO4488/73A priority patent/NO143110C/no
Application granted granted Critical
Publication of US3919103A publication Critical patent/US3919103A/en
Assigned to OLIN CORPORATION, 120 LONG RIDGE ROAD, STAMFORD, CT. 06904, A CORP. OF VA. reassignment OLIN CORPORATION, 120 LONG RIDGE ROAD, STAMFORD, CT. 06904, A CORP. OF VA. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FMC CORPORATION, 2000 MARKET STREET, PHILADELPHIA, PA., A CORP. OF DE.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Detergent Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
US356350A 1972-11-24 1973-05-02 Trichloroisocyanuric acid stabilized with hydrated sodium dichloroisocyanurate Expired - Lifetime US3919103A (en)

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 (fr) 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 (fr) 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 (fr) 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
BE138143A BE807771A (fr) 1972-11-24 1973-11-23 Compositions de blanchiment seches et chlorees
CH1654173A CH583775A5 (fr) 1972-11-24 1973-11-23
DK634273AA DK139685B (da) 1972-11-24 1973-11-23 Chlorholdigt tørt blegemiddel indeholdende en blanding af trichlorisocyanursyre og dichlorisocyanurat.
NO4488/73A NO143110C (no) 1972-11-24 1973-11-23 Toert klorblekemiddel inneholdende stabilisert triklorisocyanursyre

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 (fr)
JP (1) JPS4982591A (fr)
AR (1) AR196461A1 (fr)
AT (1) AT331759B (fr)
AU (1) AU477101B2 (fr)
BE (1) BE807771A (fr)
CA (1) CA1007808A (fr)
CH (1) CH583775A5 (fr)
DE (1) DE2358250A1 (fr)
DK (1) DK139685B (fr)
ES (1) ES420260A1 (fr)
FI (1) FI55057C (fr)
FR (1) FR2208022B1 (fr)
GB (1) GB1409385A (fr)
IT (1) IT1001757B (fr)
NL (1) NL7314945A (fr)
NO (1) NO143110C (fr)
SE (1) SE412845B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008475A1 (fr) * 1978-08-21 1980-03-05 Shell Internationale Researchmaatschappij B.V. Procédé pour préparer des agents de blanchiment à base de peroxyde et compositions de blanchiment concentrées utilisées pour la mise en oeuvre de ce procédé
DE3212216A1 (de) * 1981-04-01 1982-12-02 Nissan Chemical Industries, Ltd., Tokyo Verfahren zum entfernen von pilzen auf haeuten
WO2000052126A1 (fr) * 1999-03-01 2000-09-08 Babson Bros. Co. Nettoyage et desinfection des lavettes a trayons et compositions a cet effet
WO2011017786A1 (fr) * 2009-08-12 2011-02-17 Multclor Química Imp. E Exp. Ltda. Chlore oxygéné pour le traitement de l'eau, et procédé correspondant d'obtention et d'application

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008475A1 (fr) * 1978-08-21 1980-03-05 Shell Internationale Researchmaatschappij B.V. Procédé pour préparer des agents de blanchiment à base de peroxyde et compositions de blanchiment concentrées utilisées pour la mise en oeuvre de ce procédé
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 (fr) * 1999-03-01 2000-09-08 Babson Bros. Co. Nettoyage et desinfection des lavettes a trayons et compositions a cet effet
WO2011017786A1 (fr) * 2009-08-12 2011-02-17 Multclor Química Imp. E Exp. Ltda. Chlore oxygéné pour le traitement de l'eau, et procédé correspondant d'obtention et d'application

Also Published As

Publication number Publication date
NO143110B (no) 1980-09-08
NO143110C (no) 1980-12-17
FI55057B (fi) 1979-01-31
DK139685B (da) 1979-03-26
FR2208022B1 (fr) 1977-06-10
AU6154373A (en) 1975-04-24
CH583775A5 (fr) 1977-01-14
FI55057C (fi) 1979-05-10
NL7314945A (fr) 1974-05-28
JPS4982591A (fr) 1974-08-08
DK139685C (fr) 1979-09-10
FR2208022A1 (fr) 1974-06-21
GB1409385A (en) 1975-10-08
CA1007808A (en) 1977-04-05
BE807771A (fr) 1974-05-24
IT1001757B (it) 1976-04-30
AR196461A1 (es) 1973-12-27
SE412845B (sv) 1980-03-24
AT331759B (de) 1976-08-25
ATA976073A (de) 1975-12-15
AU477101B2 (en) 1976-10-14
ES420260A1 (es) 1977-01-16
DE2358250A1 (de) 1974-05-30

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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