CH679997A5 - Prepn. of bactericidal, fungicidal or viricidal silver based prod. - by reacting silver mon:oxide or its oxide mixt. with silver carbonate, used for sterilising swimming pool or potable water etc. - Google Patents

Prepn. of bactericidal, fungicidal or viricidal silver based prod. - by reacting silver mon:oxide or its oxide mixt. with silver carbonate, used for sterilising swimming pool or potable water etc. Download PDF

Info

Publication number
CH679997A5
CH679997A5 CH24890A CH24890A CH679997A5 CH 679997 A5 CH679997 A5 CH 679997A5 CH 24890 A CH24890 A CH 24890A CH 24890 A CH24890 A CH 24890A CH 679997 A5 CH679997 A5 CH 679997A5
Authority
CH
Switzerland
Prior art keywords
silver
water
product
oxide
product according
Prior art date
Application number
CH24890A
Other languages
Italian (it)
Inventor
Aldo Massarotti
Original Assignee
Water Line Sa
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 Water Line Sa filed Critical Water Line Sa
Priority to CH24890A priority Critical patent/CH679997A5/en
Publication of CH679997A5 publication Critical patent/CH679997A5/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G5/00—Compounds of silver
    • C01G5/006—Compounds containing, besides silver, two or more other elements, with the exception of oxygen or hydrogen
    • 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
    • A01N59/16—Heavy metals; Compounds thereof
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/358—Inorganic compounds
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Nutrition Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Polymers & Plastics (AREA)
  • Agronomy & Crop Science (AREA)
  • Water Supply & Treatment (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Cosmetics (AREA)

Abstract

Prepn. comprises reacting silver monoxide alone or in combination with another oxide, or a silver carbonate, with an alkaline hydrogen sulphate to give a reaction prod. comprising silver sulphate alkali metal double salt which dissociates in water. USE - The prod. may be useful for disinfection of drinking water, admin. to feed, for preparing ice for beverages and for refrigerating fish. It may also be used for treating the water of swimming pools, for preparing cosmetics and for hygienic or prephylactic use in humans and animals

Description

1 1

CH 679 997 A5 CH 679 997 A5

2 2

Descrizione Description

La presente invenzione ha per oggetto un procedimento per la preparazione di un prodotto battericida, virucida o fungicida a base di sale d'argento, solido, liquido o gassoso. Il prodotto, ottenuto coi procedimento è particolarmente adatto, per la disinfezione di acque per uso potabile, per usi alimentari, per la preparazione di ghiaccio per bevande o per la refrigerazione del pesce, per il trattamento delle acque di piscine, per la preparazione di cosmetici, medicamenti e prodotti di uso igienico e profilattico per l'uomo e gli animali. The present invention relates to a process for the preparation of a bactericidal, virucidal or fungicidal product based on silver salt, solid, liquid or gaseous. The product obtained by the process is particularly suitable for the disinfection of water for drinking, for food, for the preparation of ice for drinks or for the refrigeration of fish, for the treatment of swimming pool water, for the preparation of cosmetics , medicaments and products of hygienic and prophylactic use for humans and animals.

Il procedimento in oggetto è caratterizzato dal fatto che del monossido d'argento o del carbonato di argento soli o in unione ad altri ossidi vengono fatti reagire con un idrogensolfato alcalino e il prodotto di reazione, un solfato doppio d'argento e di metallo alcalino, viene sciolto in acqua, la reazione avvenendo secondo l'equazione: The process in question is characterized in that silver monoxide or silver carbonate alone or in combination with other oxides are reacted with an alkaline hydrogen sulfate and the reaction product, a double silver sulfate and alkaline metal, it is dissolved in water, the reaction taking place according to the equation:

Ag2Û + 2MeHSC>4 -> 2Ag MeS04 + H2O Ag2Û + 2MeHSC> 4 -> 2Ag MeS04 + H2O

oppure: or:

AgaCOs + 2MeHS04 —> 2Ag MeSC>4+ H2O + CO2 AgaCOs + 2MeHS04 -> 2Ag MeSC> 4+ H2O + CO2

dove il metallo «Me» è monovalente. where the metal "Me" is monovalent.

La reazione, che inizia già a temperatura ambiente con la miscelazione dei reagenti e sviluppo di calore, viene completata in soluzione acquosa. The reaction, which starts already at room temperature with the mixing of the reagents and the development of heat, is completed in an aqueous solution.

E' noto da parecchi anni di usare i sali di argento per la disinfezione delle acque per uso potabile e altri scopi e sono stati a questo proposito rilasciati parecchi brevetti, ma il procedimento in oggetto si stacca nettamente da quelli noti in quanto la preparazione estemporanea del sale doppio e la concentrazione idrogenionica finale sembrano schermare gli ioni argento nei confronti dell'azione fotochimica di agenti fisici (raggi UV in particolare) a vantaggio della stabilità della soluzione e della sua prolungata conservabilità, senza significante riduzione del suo titolo in argento. It has been known for several years to use silver salts for the disinfection of water for drinking use and other purposes and several patents have been issued in this regard, but the process in question is clearly detached from those known since the extemporaneous preparation of the double salt and the final hydrogenionic concentration seem to shield the silver ions against the photochemical action of physical agents (UV rays in particular) to the advantage of the stability of the solution and its prolonged shelf life, without significant reduction of its silver content.

Viene dato qui di seguito un esempio pratico di realizzazione del procedimento secondo la presente invenzione: A practical example of the realization of the process according to the present invention is given below:

Una parte in peso di monossido d'argento viene mescolata intimamente con 1,5 parti di idrogensolfato di potassio; la miscela viene introdotta in 500 parti di acqua demineralizzata, riscaldata a 55-65°C; dopo completa soluzione, sotto agitazione, si raffredda e si completa a 1000 parti con acqua demineralizzata. A part by weight of silver monoxide is intimately mixed with 1.5 parts of potassium hydrogen sulfate; the mixture is introduced into 500 parts of demineralized water, heated to 55-65 ° C; after complete solution, under stirring, it is cooled and completed to 1000 parts with demineralized water.

Analogamente sono preparabili soluzioni che oltre all'argento contengono altri metalli, ad esempio rame e zinco, partendo da miscele di monossido di argento 0 di carbonato d'argento, ossidi di rame ed ossido di zinco. Similarly, solutions are prepared which in addition to silver contain other metals, for example copper and zinc, starting from mixtures of silver monoxide or silver carbonate, copper oxides and zinc oxide.

A tali soluzioni possono essere aggiunti altri composti disinfettanti quali il perossido di idrogeno. Other disinfectant compounds such as hydrogen peroxide can be added to these solutions.

Si dà a questo proposito la seguente soluzione che titola: In this regard, the following solution is given which is titled:

1 g ARGENTO/litro e 106 g H202/litro, preparata come segue: 1 g SILVER / liter and 106 g H202 / liter, prepared as follows:

a 500 g della soluzione di cui all'esempio precedente con 2 g Ag/I si aggiungono 250 g di Perossido d'idrogeno al 47% m/v e si completa a 1000 g con acqua demineralizzata. 250 g of 47% m / v hydrogen peroxide are added to 500 g of the solution of the previous example with 2 g Ag / I and completed at 1000 g with demineralized water.

I mi di questa soluzione = 1 mg Ag e 100 mg H2O2. I ml of this solution = 1 mg Ag and 100 mg H2O2.

II dosaggio d'impiego per acque ad uso potabile di 1 mi di questa soluzione per 10 litri di acqua dà pertanto: The dosage of use for drinking water of 1 ml of this solution for 10 liters of water therefore gives:

Ag = 0,1 mg/l e H2O2 = 10 mg/l Ag = 0.1 mg / l and H2O2 = 10 mg / l

II pH della soluzione stabilizza l'H202. The pH of the solution stabilizes H202.

Altre varianti sono ovviamente possibili, compatibilmente con quanto rivendicato nella prima rivendicazione, senza uscire dall'ambito protezione del brevetto. Other variants are obviously possible, compatibly with what is claimed in the first claim, without departing from the scope of protection of the patent.

Claims (1)

Rivendicazioni claims 1. Procedimento per la preparazione di un prodotto battericida, virucida 0 fungicida a base di sale d'argento, solido, liquido 0 gassoso, caratterizzato dal fatto che del monossido d'argento 0 del carbonato di argento soli o in unione ad altri ossidi viene fatto reagire con un idrogensolfato alcalino e il prodotto di reazione, un solfato doppio d'argento e di metallo alcalino, viene sciolto in acqua, la reazione avvenendo secondo l'equazione:1. Procedure for the preparation of a bactericidal, virucidal or fungicidal product based on silver salt, solid, liquid or gaseous, characterized in that silver monoxide or silver carbonate alone or in combination with other oxides is reacted with an alkaline hydrogensulphate and the reaction product, a double sulphate of silver and alkaline metal, is dissolved in water, the reaction taking place according to the equation: Ag20 + 2MeHS04 —> 2Ag MeS04 + H2OAg20 + 2MeHS04 -> 2Ag MeS04 + H2O oppure:or: Ag2C03 + 2MeHSC>4 -» 2Ag MeSÛ4+ H2O + CO2Ag2C03 + 2MeHSC> 4 - »2Ag MeSÛ4 + H2O + CO2 dove il metallo «Me» è monovalente.where the metal "Me" is monovalent. 2. Procedimento secondo la rivendicazione 1, caratterizzato da ciò che una parte in peso di monossido d'argento o di carbonato d'argento vengono mescolate intimamente con 1,5 parti di idrogensolfato di potassio e la miscela introdotta in 500 parti di acqua demineralizzata, riscaldata a 55-65°C; dopo la completa soluzione, sotto agitazione, si raffredda e si completa a 1000 parti con acqua demineralizzata.2. Process according to claim 1, characterized in that a part by weight of silver monoxide or silver carbonate is intimately mixed with 1.5 parts of potassium hydrogen sulphate and the mixture introduced into 500 parts of demineralized water, heated to 55-65 ° C; after the complete solution, under stirring, it is cooled and completed to 1000 parts with demineralized water. 3. Procedimento secondo le rivendicazioni 1 e 2 caratterizzato da ciò che a detto prodotto, preparato a partire da monossido di argento 0 da carbonato di argento, vengono aggiunti ossidi di altri metalli, come ossidi di rame e ossido di zinco.3. Process according to claims 1 and 2 characterized in that oxides of other metals, such as copper oxides and zinc oxide, are added to said product, prepared starting from silver monoxide or silver carbonate. 4. Procedimento secondo la rivendicazione 1, caratterizzato da ciò che a detto prodotto vengono aggiunti altri disinfettanti come perossido di idrogeno.4. Process according to claim 1, characterized in that other disinfectants such as hydrogen peroxide are added to said product. 5. Procedimento secondo le rivendicazioni 1 e 2, caratterizzato da ciò che a 500 g del prodotto di cui alle rivendicazione 2 contenente 2g Ag/I si aggiungono 250 g di Perossido d'idrogeno al 47% m/v e si completa a 1000 g con acqua demineralizzata, in cui: 1 mi = 1 mg Ag e 100 mg HO;5. Process according to claims 1 and 2, characterized in that 250 g of 47% m / v hydrogen peroxide is added to 500 g of the product according to claim 2 containing 2g Ag / I at 1000 g with demineralized water, wherein: 1 ml = 1 mg Ag and 100 mg HO; il dosaggio d'impiego per acque ad uso potabile di 1 mi di questa soluzione per 10 litri di acqua corrispondendo a:the dosage of use for drinking water of 1 ml of this solution for 10 liters of water corresponding to: Ag = 0,1 mg/l e HO = 10 mg/l.Ag = 0.1 mg / l and HO = 10 mg / l. 6. Prodotto ottenuto col procedimento secondo la rivendicazione 1.6. Product obtained by the process according to claim 1. 55 1010 1515 2020 2525 3030 3535 4040 4545 5050 5555 6060 6565 33 CH 679 997 A5CH 679 997 A5 7. Utilizzazione del prodotto secondo la rivendicazione 6 per la disinfezione delle acque per uso potabile.Use of the product according to claim 6 for the disinfection of water for drinking use. 8. Utilizzazione del prodotto secondo la rivendicazione 6 per uso alimentare.Use of the product according to claim 6 for food use. y 9. Utilizzazione del prodotto secondo la rivendi-y 9. Use of the product according to the claim i cazione 6 per la preparazione di ghiaccio per be-cation 6 for preparing ice for vande e per la refrigerazione del pesce. • 10. Utilizzazione del prodotto secondo la rivendi cazione 6 per il trattamento delle acque di piscine.vande and for chilling fish. • 10. Use of the product according to claim 6 for the treatment of swimming pool water. 11. Utilizzazione del prodotto secondo la rivendicazione 6 per la preparazione di cosmetici.11. Use of the product according to claim 6 for the preparation of cosmetics. 12. Utilizzazione del prodotto secondo la rivendicazione 6 per la preparazione di medicamenti e prodotti di uso igienico e profilattico per l'uomo e gli animali.12. Use of the product according to claim 6 for the preparation of medicaments and products of hygienic and prophylactic use for humans and animals. ♦♦ \ ( f\ (f \\ 55 1010 1515 2020 2525 3030 3535 4040 4545 5050 5555 6060 6565 33
CH24890A 1990-01-26 1990-01-26 Prepn. of bactericidal, fungicidal or viricidal silver based prod. - by reacting silver mon:oxide or its oxide mixt. with silver carbonate, used for sterilising swimming pool or potable water etc. CH679997A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH24890A CH679997A5 (en) 1990-01-26 1990-01-26 Prepn. of bactericidal, fungicidal or viricidal silver based prod. - by reacting silver mon:oxide or its oxide mixt. with silver carbonate, used for sterilising swimming pool or potable water etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH24890A CH679997A5 (en) 1990-01-26 1990-01-26 Prepn. of bactericidal, fungicidal or viricidal silver based prod. - by reacting silver mon:oxide or its oxide mixt. with silver carbonate, used for sterilising swimming pool or potable water etc.

Publications (1)

Publication Number Publication Date
CH679997A5 true CH679997A5 (en) 1992-05-29

Family

ID=4182675

Family Applications (1)

Application Number Title Priority Date Filing Date
CH24890A CH679997A5 (en) 1990-01-26 1990-01-26 Prepn. of bactericidal, fungicidal or viricidal silver based prod. - by reacting silver mon:oxide or its oxide mixt. with silver carbonate, used for sterilising swimming pool or potable water etc.

Country Status (1)

Country Link
CH (1) CH679997A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0876762A1 (en) * 1997-05-05 1998-11-11 Tevan B.V. Composition having disinfecting action
WO2004066759A1 (en) * 2003-01-31 2004-08-12 Indevex Watertech Ab Method and apparatus for prolonging the shelf life of a food product comprising exposing the food product to an aqueous composition of dissolved silver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0876762A1 (en) * 1997-05-05 1998-11-11 Tevan B.V. Composition having disinfecting action
NL1005965C2 (en) * 1997-05-05 1998-11-13 Tevan Chemie B V Disinfectant formulation.
WO2004066759A1 (en) * 2003-01-31 2004-08-12 Indevex Watertech Ab Method and apparatus for prolonging the shelf life of a food product comprising exposing the food product to an aqueous composition of dissolved silver

Similar Documents

Publication Publication Date Title
US5306432A (en) Water purification
US4915955A (en) Process for preparing a disinfectant
US3702298A (en) Method of disinfecting with divalent and trivalent metal germicide
US7601755B2 (en) Process for treating water
US9663691B2 (en) Production of highly ionized alkaline water using a combination of reducing metals and reductive minerals
CA2580043C (en) Formulation and method for providing safe, clean chlorinated recreational water
EP2323673B1 (en) Antimicrobial silver solutions
US6565893B1 (en) Process for preparing a disinfectant containing suspended metals
JP2004330028A (en) Method for making active hydrogen-containing water
US4296102A (en) Method of combating amebiasis in humans
JP2004523492A5 (en)
CH679997A5 (en) Prepn. of bactericidal, fungicidal or viricidal silver based prod. - by reacting silver mon:oxide or its oxide mixt. with silver carbonate, used for sterilising swimming pool or potable water etc.
JP4072787B2 (en) Acid-reduced water-generating tablets
JPH02324B2 (en)
US20090081806A1 (en) Methods and Compositions for pH Control
AU2003243202B2 (en) Catalytic oxidation of peroxy salts
JPH0840874A (en) Bathing agent for bath
US7252772B2 (en) Method for producing an essentially chlorite-free, stable aqueous chlorine-oxygen solution, the chlorine-oxygen solution obtained by means of said method, and the use of the same
JPH0512326B2 (en)
RU2161031C2 (en) Agent for bath
JP4891485B2 (en) Modified tap water and method for improving tap water
CN1104428A (en) Chlorine dioxide disinfection liquid
US20240156099A1 (en) Composition for generation of chlorine dioxide for use as sanitizer
WO2009087647A1 (en) A stabilized iodine-water concentrate formulation useful for protection against iodine deficiency disorders
CN1631770A (en) Method for preparing activation-free stable chlorine dioxide

Legal Events

Date Code Title Description
PFA Name/firm changed

Owner name: WATER-LINE S.A.

Free format text: WATER-LINE S.A.#CASELLA POSTALE 23#6805 MEZZOVICO (CH) -TRANSFER TO- WATER-LINE S.A.#ZONA INDUSTRIALE 3 P.O. BOX 149#6805 MEZZOVICO (CH)

PL Patent ceased