Assertion: chlorous acid | /r/HasProperty | hclo 2
Facets:
Source sentences:
text: The free acid, chlorous acid, HClO 2 , is only stable at low concentrations.
text: 2 SO 4 , one might expect that the presence of the chlorite ion (ClO 2 -) in solution is negligible and all the chlorite ions are undissociated (i.e., in the form of chlorous acid (HClO 2 )).
text: According to this process, sulfuric acid (H 2 SO 4 ) or aqueous solution thereof is added to an aqueous sodium chlorate (NaCl O 3 ) solution to create acidic conditions, thereby generating chloric acid (HClO 3 ), and the resulting chloric acid undergoes a reduction reaction with an excess amount of hydrogen peroxide to produce chlorous acid (HClO 2 ).
text: Then, equation B shows that chloric acid (HClO 3 ) undergoes a reduction reaction with hydrogen peroxide (H 2 O 2 ) to produce chlorous acid (HClO 2 ).
text: These states contribute to delaying the progress of the conversion of chlorous acid (HClO 2 ) to chlorine dioxide (ClO 2 ), which enables the formation of an aqueous chlorous acid solution that is capable of sustaining chlorous acid (HClO 2 ) for an extended time and releases a reduced amount of chlorine dioxide (ClO 2 ).
text: These states contribute to delaying the progress of the conversion of chlorous acid (HClO 2 ) to chlorine dioxide (ClO 2 ), which enables the formation of an aqueous chlorous acid solution that is capable of sustaining chlorous acid (HClO 2 ) for an extended time and releases a reduced amount of chlorine dioxide (ClO 2 ).
text: This contributes to producing an aqueous chlorous acid solution emitting a reduced amount of chlorine dioxide (ClO 2 ) by slowing the conversion of chlorous acid to sodium chlorite (NaClO 2 ) while maintaining chlorous acid (HClO 2 ) for an extended time.
text: The time-course stability of chlorous acid (HClO 2 ) in each sample was compared by measurement of UV spectra and molecular content.
text: 1 , 5, 9, and 13), because they indicate the concurrently ongoing chain of reactions shown in Chemical Formula 4 involving chlorous acid (HClO 2 ), chlorine dioxide (ClO 2 ), and acidic chlorite ion (ClO 2 ).
text: These observations argue that the process of the present invention exhibits superiority in providing an aqueous solution that has a high bactericidal activity and an extended stability of chlorous acid (HClO 2 ).
text: According to this process, sulfuric acid (H 2 SO 4 ) or aqueous solution thereof is added to an aqueous sodium chlorate (NaClO 3 ) solution to create acidic conditions, thereby generating chloric acid (HClO 3 ), and the resulting chloric acid undergoes a reduction reaction with an excess amount of hydrogen peroxide to produce chlorous acid (HClO 2 ).
text: Then, equation B shows that chloric acid (HClO 3 ) undergoes a reduction reaction with hydrogen peroxide (H 2 O 2 ) to produce chlorous acid (HClO 2 ).
text: These states contribute to delaying the progress of the conversion of chlorous acid (HCl 2 ) to chlorine dioxide (ClO 2 ), which enables the formation of an aqueous chlorous acid solution that is capable of sustaining chlorous acid (HClO 2 ) for an extended time and releases a reduced amount of chlorine dioxide (ClO 2 ).
text: This contributes to producing an aqueous chlorous acid solution emitting a reduced amount of chlorine dioxide (ClO 2 ) by slowing the conversion of chlorous acid to sodium chlorite (NaClO 2 ) while maintaining chlorous acid (HClO 2 ) for an extended time.
text: The time-course stability of chlorous acid (HClO 2 ) in each sample was compared by measurement of UV spectra and molecular content.
text: 1, 5, 9, and 13 ), because they indicate the concurrently ongoing chain of reactions shown in Chemical Formula 4 involving chlorous acid (HClO 2 ), chlorine dioxide (ClO 2 ), and acidic chlorite ion (ClO 2 ).
text: These observations argue that the process of the present invention exhibits superiority in providing an aqueous solution that has a high bactericidal activity and an extended stability of chlorous acid (HClO 2 ).
text: ClO 2 State can be created and the progress of chlorous acid (HClO 2 ) to chlorine dioxide (ClO 2 ) can be delayed.
text: Thereby, it is possible to produce an aqueous solution containing chlorous acid that maintains chlorous acid (HClO 2 ) for a long time and generates less chlorine dioxide (ClO 2 ).
text: Therefore, when adding the above inorganic acid, inorganic acid salt, organic acid or organic acid salt to an aqueous solution containing chlorous acid (HClO 2 ), pH is suppressed from the viewpoint of suppression of generation of chlorine dioxide and balance with sterilizing power.
text: That is, the presence of chlorous acid (HClO 2 ) can be recognized.
text: This is because, as shown in the following chemical formula 4, the cycle reaction of chlorine dioxide (ClO 2 ) and acidic chlorite ion (H + + ClO 2 − ) proceeds simultaneously with chlorous acid (HClO 2 ) as the main component.
text: Although not wishing to be bound by theory, in the present invention, chlorous acid (HClO 2 ), chlorine dioxide gas (ClO 2 ) or an aqueous solution containing these, and an inorganic acid, an inorganic acid salt, an organic acid, or an organic acid salt
text: The resultant compound, chlorous acid (HClO 2 ), is the real precursor for the formation of Chlorine Dioxide (ClO 2 ), and its formation is shown in Reaction (1).
text: As used herein, “stability” of a chlorous acid aqueous solution refers to a state of maintaining chlorous acid (HClO 2 ).
text: A conventional method of manufacturing an aqueous solution (chlorous acid aqueous solution) comprising chlorous acid (HClO 2 ) that can be used as a sterilizing agent would generate chlorous acid (HClO 2 ) by adding hydrogen peroxide (H 2 O 2 ), to an aqueous solution of sodium chlorate (NaClO 3 ), in an amount required to produce chlorous acid by a reducing reaction of chloric acid (HClO 3 ) obtained by adding sulfuric acid (H 2 SO 4 ) or an aqueous solution thereof to an aqueous solution of sodium chlorate (NaClO 3 ) so that the aqueous solution of sodium chlorate is in an acidic condition.
text: Next, formula B indicates that chloric acid (HClO 3 ) is reduced with hydrogen peroxide (H 2 O 2 ) to produce chlorous acid (HClO 2 ).
text: In this regard, chlorous acid (HClO 2 ) can be stably maintained over a long period of time by adding one of an inorganic acid, inorganic acid salt, organic acid, and organic acid salt, two or more types thereof or a combination thereof to the chlorous acid (HClO 2 ), chlorine dioxide gas (ClO 2 ) or an aqueous solution containing them obtained by the above-described method to create a transitional state and delay a decomposition reaction.
text: —ClO 2 can be temporarily created to delay the progression of chlorous acid (HClO 2 ) to chlorine dioxide (ClO 2 ), which enables the manufacture of an aqueous solution comprising chlorous acid (HClO 2 ) that maintains chlorous acid (HClO 2 ) for a long period of time and generates a small amount of chlorine dioxide (ClO 2 ).
text: When a spectrometric measurement of a sample can simultaneously identify an absorbent section comprising an acidic chlorite ion (H++ClO 2 −) representing a peak near 260 nm and an absorbent section comprising chlorine dioxide (ClO 2 ) representing a peak near 350 nm between wavelengths 240 to 420 nm, it is possible to recognize presence of the chlorous acid aqueous solution of the present invention, i.e., the presence of chlorous acid (HClO 2 ).
text: Conversion of chlorous acid (HClO 2 ) to chlorine dioxide (ClO 2 ) results in a single peak only near 350 nm.
text: In another aspect, although not wishing to be bound by any theory, use of potassium salt is preferable in the present invention because the property of being readily dissociable in an aqueous solution by using potassium as metal in a phosphoric acid buffering agent relative to sodium or the like was found to be effective in maintaining chlorous acid, and the use was found to enhance an effect of maintaining the created transitional state for a long period of time and delaying the progression from chlorous acid (HClO 2 ) to chlorine dioxide (ClO 2 ).
text: Chlorous acid, HClO 2 , contains what percent hydrogen by mass?
text: According to this process, sulfuric acid (H 2 SO 4 ) or aqueous solution thereof is added to an aqueous sodium chlorate (NaClO 3 ) solution to create acidic conditions, thereby generating chloric acid (HClO 3 ), and the resulting chloric acid undergoes a reduction reaction with an excess amount of hydrogen peroxide to produce chlorous acid (HClO 2 ).
text: Then, equation B shows that chloric acid (HClO 3 ) undergoes a reduction reaction with hydrogen peroxide (H 2 O 2 ) to produce chlorous acid (HClO 2 ).
text: These states contribute to delaying the progress of the conversion of chlorous acid (HClO 2 ) to chlorine dioxide (ClO 2 ), which enables the formation of an aqueous chlorous acid solution that is capable of sustaining chlorous acid (HClO 2 ) for an extended time and releases a reduced amount of chlorine dioxide (ClO 2 ).
text: These states contribute to delaying the progress of the conversion of chlorous acid (HClO 2 ) to chlorine dioxide (ClO 2 ), which enables the formation of an aqueous chlorous acid solution that is capable of sustaining chlorous acid (HClO 2 ) for an extended time and releases a reduced amount of chlorine dioxide (ClO 2 ).
text: This contributes to producing an aqueous chlorous acid solution emitting a reduced amount of chlorine dioxide (ClO 2 ) by slowing the conversion of chlorous acid to sodium chlorite (NaClO 2 ) while maintaining chlorous acid (HClO 2 ) for an extended time.
text: The time-course stability of chlorous acid (HClO 2 ) in each sample was compared by measurement of UV spectra and molecular content.
text: 1, 5, 9, and 13), because they indicate the concurrently ongoing chain of reactions shown in Chemical Formula 4 involving chlorous acid (HClO 2 ), chlorine dioxide (ClO 2 ), and acidic chlorite ion (ClO 2 ).
text: These observations argue that the process of the present invention exhibits superiority in providing an aqueous solution that has a high bactericidal activity and an extended stability of chlorous acid (HClO 2 ).