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- PH_indicator abstract "A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or basicity) of the solution can be determined visually. Hence a pH indicator is a chemical detector for hydronium ions (H3O+) or hydrogen ions (H+) in the Arrhenius model. Normally, the indicator causes the colour of the solution to change depending on the pH. Indicators can also show change in other physical properties; for example, olfactory indicators show change in their odor. At 25 °C, considered the standard temperature, the pH value of a neutral solution is 7.0. Solutions with a pH value below 7.0 are considered acidic, whereas solutions with pH value above 7.0 are basic (alkaline). As most naturally occurring organic compounds are weak protolytes, carboxylic acids and amines, pH indicators find many applications in biology and analytical chemistry. Moreover, pH indicators form one of the three main types of indicator compounds used in chemical analysis. For the quantitative analysis of metal cations, the use of complexometric indicators is preferred, whereas the third compound class, the redox indicators, are used in titrations involving a redox reaction as the basis of the analysis.".
- PH_indicator thumbnail PH_indicator_paper.jpg?width=300.
- PH_indicator wikiPageExternalLink liste_indicateurs_pH.pdf.
- PH_indicator wikiPageExternalLink pH-measurements-indicators.
- PH_indicator wikiPageID "85411".
- PH_indicator wikiPageRevisionID "598257853".
- PH_indicator hasPhotoCollection PH_indicator.
- PH_indicator subject Category:Equilibrium_chemistry.
- PH_indicator subject Category:PH_indicators.
- PH_indicator subject Category:Titration.
- PH_indicator type Abstraction100002137.
- PH_indicator type Communication100033020.
- PH_indicator type Fact106636259.
- PH_indicator type Index106639674.
- PH_indicator type Information106634376.
- PH_indicator type Message106598915.
- PH_indicator type PHIndicators.
- PH_indicator comment "A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or basicity) of the solution can be determined visually. Hence a pH indicator is a chemical detector for hydronium ions (H3O+) or hydrogen ions (H+) in the Arrhenius model. Normally, the indicator causes the colour of the solution to change depending on the pH.".
- PH_indicator label "Chemiczne wskaźniki pH".
- PH_indicator label "Indicador de pH".
- PH_indicator label "Indicador de pH".
- PH_indicator label "Indicateur de pH".
- PH_indicator label "Indicatore (chimica)".
- PH_indicator label "Indikator (Chemie)".
- PH_indicator label "PH indicator".
- PH_indicator label "PH-indicator".
- PH_indicator label "Кислотно-основные индикаторы".
- PH_indicator label "مؤشر الأس الهيدروجيني".
- PH_indicator label "酸塩基指示薬".
- PH_indicator label "酸碱指示剂".
- PH_indicator sameAs Indikator_(Chemie).
- PH_indicator sameAs Πεχαμετρικός_δείκτης.
- PH_indicator sameAs Indicador_de_pH.
- PH_indicator sameAs Indicateur_de_pH.
- PH_indicator sameAs Indikator_asam-basa.
- PH_indicator sameAs Indicatore_(chimica).
- PH_indicator sameAs 酸塩基指示薬.
- PH_indicator sameAs 산·염기_지시약.
- PH_indicator sameAs PH-indicator.
- PH_indicator sameAs Chemiczne_wskaźniki_pH.
- PH_indicator sameAs Indicador_de_pH.
- PH_indicator sameAs m.0lpbt.
- PH_indicator sameAs Q300951.
- PH_indicator sameAs Q300951.
- PH_indicator sameAs PH_indicator.
- PH_indicator wasDerivedFrom PH_indicator?oldid=598257853.
- PH_indicator depiction PH_indicator_paper.jpg.
- PH_indicator isPrimaryTopicOf PH_indicator.
