# US 2008/0185347 A1 · pH-adjusting compositions in water-soluble pouches > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0185347 A1 - Document ID: US20080185347A1 - Status: Published application - Kind: A1 - Application number: 11/585,538 - Filed: 2006-10-24 - Published: 2008-08-07 - Earliest claimed: 2006-10-24 - Inventors: Thomas Peter Tufano; Jordan Alexis Muenchow - Web page: https://patentgrep.com/patent/US20080185347A1 ## CPC - C02F 1/66: by neutralisation; pH adjustment (for degassing C02F1/20; using ion-exchange C02F1/42; for flocculation or precipitation of suspended impurities C02F1/52; for removing dissolved compounds C02F1/58) - C02F 1/70: by reduction {(C02F1/4676 takes precedence)} - C02F 1/72: by oxidation {(C02F1/4672 takes precedence)} - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) ## Abstract A composition comprising a pre-measured amount of an acid component and an alkaline component in a sealed water-soluble pouch, said composition when contacted with water generating effervescence and neutralizing the pH of the water is disclosed. ## Claims ### Claim 1 A composition comprising a pre-measured amount of an acid component and an alkaline component in a sealed water-soluble pouch, said composition when contacted with water generating effervescence and neutralizing the pH of the water. ### Claim 2 (depends on 1) The composition of claim 1 wherein the neutralizing is to a pH of from about 6.8 to about 8.2. ### Claim 3 (depends on 1) The composition of claim 1 wherein the acid component and alkaline component are each a granular or powdered solid. ### Claim 4 (depends on 1) The composition of claim 1 wherein the acid component is selected from the group consisting of a C2 to C10 mono-, di-, or tri-carboxylic acid; solid C6 to C10 aryl sulfonic acid; sulfamic acid; acid having a sulfonic acid functionality and a carboxylic acid functionality; acidic salt; hydrates thereof; or mixtures thereof. ### Claim 5 (depends on 4) The composition of claim 4 wherein the acid component is malic acid, citric acid, itaconic acid, succinic acid or 5-sulfosalicylic acid dihydrate. ### Claim 6 (depends on 1) The composition of claim 1 wherein the alkaline component is an alkali metal carbonate, hydrate thereof, or mixture thereof. ### Claim 7 (depends on 6) The composition of claim 6 wherein the alkaline composition is sodium carbonate. ### Claim 8 (depends on 1) The composition of claim 1 wherein the molar ratio of the acid component to the alkaline component is from about 2:1 to about 20:1. ### Claim 9 (depends on 1) The composition of claim 1 wherein the molar ratio of the alkaline component to the acid component is from about 2:1 to about 20:1. ### Claim 10 (depends on 1) The composition of claim 1 wherein the composition increases pH when added to water and contains a molar excess of the alkaline component. ### Claim 11 (depends on 1) The composition of claim 1 wherein the composition decreases pH when added to water and contains a molar excess of the acid component. ### Claim 12 (depends on 1) The composition of claim 1 further comprising a clarifier, flocculant, fragrance, corrosion inhibitor, chelating agent, enzyme, diluent, or colorant. ### Claim 13 (depends on 1) The composition of claim 1 wherein the pouch comprises a hydrolyzed copolymer of vinyl acetate and a monomer having carboxylate functionality or sulfonate functionality. ### Claim 14 (depends on 1) The composition of claim 1 wherein the pouch has a thickness of from about 1 to about 6 mil. ### Claim 15 A method of adjusting the pH of water comprising contacting with the water a sealed water-soluble pouch containing composition, said composition comprising a pre-measured amount of an acid component and an alkaline component, and said composition generating effervescence when contacted with the water. ### Claim 16 (depends on 15) The method of claim 15 wherein the acid component is selected from the group consisting of a C2 to C10 mono-, di-, or tri-carboxylic acid; solid C6 to C10 aryl sulfonic acid; sulfamic acid; acid having a sulfonic acid functionality and a carboxylic acid functionality; acidic salts; hydrate thereof; or mixture thereof. ### Claim 17 (depends on 15) The method of claim 15 wherein the alkaline component is an alkali metal carbonate, hydrate thereof, or mixture thereof. ### Claim 18 (depends on 15) The method of claim 15 wherein the composition further comprises a clarifier, flocculant, fragrance, corrosion inhibitor, chelating agent, enzyme, diluent, or colorant. ### Claim 19 (depends on 15) The method of claim 15 wherein the pouch and composition together have a specific gravity between 1.0 and 1.25. ### Claim 20 (depends on 15) The method of claim 15 wherein the pouch comprises a hydrolyzed copolymer of vinyl acetate and a monomer having carboxylate functionality or sulfonate functionality.