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- Bicarbonate_indicator abstract "A bicarbonate indicator (hydrogencarbonate indicator) is a type of pH indicator that is sensitive enough to show a color change as the concentration of carbon dioxide gas in an aqueous solution increases. The indicator is used in photosynthesis and respiration experiments to find out whether carbon dioxide is being liberated. It is also used to test the carbon dioxide content during gaseous exchange of organisms. When the carbon dioxide content is higher than 0.04%, the initial red color changes to yellow as the pH becomes more acidic. If the carbon dioxide content is lower than 0.04%, it changes from red to magenta and, in relatively very low carbon dioxide concentrations, to purple. Carbon dioxide, even in the concentrations found in exhaled air, will dissolve in the indicator to form carbonic acid, a weak acid, which will lower the pH and give the characteristic colour change. A colour change to purple during photosynthesis shows a reduction in the percentage of carbon dioxide and is sometimes inferred as production of oxygen, but is not actually direct evidence for it.Great care must be taken to avoid acidic or alkaline contamination of the apparatus in such experiments, since the test is not directly specific to carbon dioxide.".
- Bicarbonate_indicator wikiPageID "21421469".
- Bicarbonate_indicator wikiPageLength "2395".
- Bicarbonate_indicator wikiPageOutDegree "12".
- Bicarbonate_indicator wikiPageRevisionID "669860332".
- Bicarbonate_indicator wikiPageWikiLink Carbon_dioxide.
- Bicarbonate_indicator wikiPageWikiLink Carbonic_acid.
- Bicarbonate_indicator wikiPageWikiLink Category:PH_indicators.
- Bicarbonate_indicator wikiPageWikiLink Cellular_respiration.
- Bicarbonate_indicator wikiPageWikiLink Cresol_Red.
- Bicarbonate_indicator wikiPageWikiLink Ethanol.
- Bicarbonate_indicator wikiPageWikiLink PH_indicator.
- Bicarbonate_indicator wikiPageWikiLink Photosynthesis.
- Bicarbonate_indicator wikiPageWikiLink Potassium_chloride.
- Bicarbonate_indicator wikiPageWikiLink Sodium_bicarbonate.
- Bicarbonate_indicator wikiPageWikiLink Thymol_blue.
- Bicarbonate_indicator wikiPageWikiLinkText "bicarbonate indicator".
- Bicarbonate_indicator wikiPageUsesTemplate Template:Analytical-chem-stub.
- Bicarbonate_indicator wikiPageUsesTemplate Template:Reflist.
- Bicarbonate_indicator subject Category:PH_indicators.
- Bicarbonate_indicator hypernym Indicator.
- Bicarbonate_indicator type ChemicalCompound.
- Bicarbonate_indicator comment "A bicarbonate indicator (hydrogencarbonate indicator) is a type of pH indicator that is sensitive enough to show a color change as the concentration of carbon dioxide gas in an aqueous solution increases. The indicator is used in photosynthesis and respiration experiments to find out whether carbon dioxide is being liberated. It is also used to test the carbon dioxide content during gaseous exchange of organisms.".
- Bicarbonate_indicator label "Bicarbonate indicator".
- Bicarbonate_indicator sameAs Q4903538.
- Bicarbonate_indicator sameAs m.05f5sqh.
- Bicarbonate_indicator sameAs Q4903538.
- Bicarbonate_indicator sameAs 碳酸氢盐指示剂.
- Bicarbonate_indicator wasDerivedFrom Bicarbonate_indicator?oldid=669860332.
- Bicarbonate_indicator isPrimaryTopicOf Bicarbonate_indicator.