US2010084604A1PendingUtilityA1

Composition for stabilizing chlorine dioxide

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Assignee: TAIKO PHARMACEUTICAL CO LTDPriority: Mar 15, 2007Filed: Feb 15, 2008Published: Apr 8, 2010
Est. expiryMar 15, 2027(~0.6 yrs left)· nominal 20-yr term from priority
Inventors:Koji Abe
A61L 9/015A61L 2/18A61L 9/14A61L 2/22C01B 11/022A61L 2/20A61L 9/01A01N 59/00
61
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Claims

Abstract

A composition for stabilizing chlorine dioxide maintains a chlorine dioxide concentration nearly constant in the agent containing chlorine dioxide dissolved therein even when chlorine dioxide is continuously released as gas from agent, and includes a chlorite and a pH adjuster. The pH adjuster is an acid or a salt thereof having a buffering property whose pH is 2.5 to 6.8 as a 5% aqueous solution at 25° C.

Claims

exact text as granted — not AI-modified
1 . A composition for stabilizing chlorine dioxide, which maintains a chlorine dioxide concentration nearly constant in an agent comprising chlorine dioxide dissolved therein even when chlorine dioxide is continuously released as gas from the agent, comprising:
 a chlorite and   a pH adjuster which is an acid or a salt thereof having a buffering property whose pH is 2.5 to 6.8 as a 5% aqueous solution at 25° C.   
   
   
       2 . The composition for stabilizing chlorine dioxide according to  claim 1 , wherein the pH adjuster is phosphoric acid or a salt thereof. 
   
   
       3 . The composition for stabilizing chlorine dioxide according to  claim 2 , wherein the pH adjuster is one of sodium dihydrogenphosphate and a mixture of sodium dihydrogenphosphate with disodium hydrogenphosphate.

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