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- Universal_indicator abstract "A Universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 1-14 to indicate the acidity or alkalinity of solutions. Although there are a number of commercially available universal pH indicators, most are a variation of a formula patented by Yamada in 1923. Details of this patent can be found in Chemical Abstracts. Experiments with Yamada's Universal Indicator are also described in the Journal of Chemical Education.There are now also available wide range pH test papers with distinct colours for each pH from 1 to 14. Colour matching charts are supplied with the specific test strips purchased. The universal indicator is made from magnesium hydroxide with a pH value of 4.A universal indicator is typically composed of water, propan-1-ol, phenolphthalein sodium salt, sodium hydroxide, methyl red, bromothymol blue monosodium salt, and thymol blue monosodium salt. The colours that indicate the pH of a solution, after adding a universal indicator are:".
- Universal_indicator thumbnail Universal_indicator_paper.jpg?width=300.
- Universal_indicator wikiPageID "1365931".
- Universal_indicator wikiPageRevisionID "598341114".
- Universal_indicator hasPhotoCollection Universal_indicator.
- Universal_indicator subject Category:PH_indicators.
- Universal_indicator type Abstraction100002137.
- Universal_indicator type Communication100033020.
- Universal_indicator type Fact106636259.
- Universal_indicator type Index106639674.
- Universal_indicator type Information106634376.
- Universal_indicator type Message106598915.
- Universal_indicator type PHIndicators.
- Universal_indicator comment "A Universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 1-14 to indicate the acidity or alkalinity of solutions. Although there are a number of commercially available universal pH indicators, most are a variation of a formula patented by Yamada in 1923. Details of this patent can be found in Chemical Abstracts.".
- Universal_indicator label "Indicador universal".
- Universal_indicator label "Indicateur universel".
- Universal_indicator label "Papierek wskaźnikowy".
- Universal_indicator label "Universal indicator".
- Universal_indicator label "Universalindikator".
- Universal_indicator label "万能指示薬".
- Universal_indicator label "廣範試劑".
- Universal_indicator sameAs Universalindikator.
- Universal_indicator sameAs Γενικός_δείκτης_(χημεία).
- Universal_indicator sameAs Indicateur_universel.
- Universal_indicator sameAs 万能指示薬.
- Universal_indicator sameAs Papierek_wskaźnikowy.
- Universal_indicator sameAs Indicador_universal.
- Universal_indicator sameAs m.04x1p7.
- Universal_indicator sameAs Q903137.
- Universal_indicator sameAs Q903137.
- Universal_indicator sameAs Universal_indicator.
- Universal_indicator wasDerivedFrom Universal_indicator?oldid=598341114.
- Universal_indicator depiction Universal_indicator_paper.jpg.
- Universal_indicator isPrimaryTopicOf Universal_indicator.
