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Basiskennis chemie/pH-indicatoren: verschil tussen versies

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== pH-indicatoren ==
In onderstaande lijst is een overzicht verzameld van pH-indicatoren. Veel van deze stoffen worden zelden gebruikt, maar kunnen in speciale gevallen uitkomst bieden. In onderstaande tabel zijn gegevens uit meerdere bronnen samengevoegd.<ref name = "Binas">{{BINAS5 | Tabel = 52}}</ref><ref name = "pH-meter">http://www.ph-meter.info/pH-measurements-indicators</ref> Hoewel de gegevens in essentie parallel lopen, zijn er soms kleine verschillen. In die gevallen staan beide waarden vermeld, met de bron waaruit ze betrokken zijn. Staat in een van de kolommen één getal en in de andere twee, dan zijn de bronnen in het eerste geval eensluidend, in het tweede niet.
{| class="sortable vatop"
|+ pH-indicatoren
! naam
! zure pH
! basische pH
! zure kleur
! basische kleur
|-
| [[w:Hematoxyline|Hematoxyline]]<ref name = "Binas" /> || 0.0 || 1.0 || rood || geel
|-
| [[w:Kresolrood|Kresolrood]]<ref name = "Binas" /><ref name = "dubbel">Twee omslagpunten</ref> || 0.0 || 1.0 || rood || geel
|-
| [[w:Kristalviolet|Kristalviolet]]<ref name = "Binas" /> || 0.0 || 1.8 || geel || blauw
|-
| [[w:Malachiet groen oxalaat|Malachiet groen oxalaat]]<ref name = "pH-meter" /> || 0.0 || 2.0 || groen || groen-blauw
|-
| [[w:Brilliant groen|Brilliant groen]]<ref name = "pH-meter" /> || 0.0 || 2.6 || geel || groen
|-
| [[w:Eosin (gelig)|Eosin (gelig)]]<ref name = "pH-meter" /> || 0.0 || 3.0 || geel || groen (fluorescerend)
|-
| [[w:Erythrosine B|Erythrosine B]]<ref name = "pH-meter" /> || 0.0 || 3.6 || geel || rood
|-
| [[w:Methylgroen|Methylgroen]]<ref name = "pH-meter" /> || 0.1 || 2.3|| geel || blauw
|-
| [[w:Methylviolet|Methylviolet]]<ref name = "pH-meter" /> || 0.1 || 2.7 || geel || violet
|-
| [[w:Picrinezuur|Picrinezuur]]<ref name = "pH-meter" /> || 0.2 || 1.0 || kleurloos || geel
|-
| [[w:Cresolrood|Methylviolet]]<ref name = "pH-meter" /> || 0.2 || 1.8 || rood || geel
|-
| [[w:Kristalviolet|Kristalviolet]]<ref name = "pH-meter" /> || 0.2 || 2.6 || geel || blauw/violet
|-
| [[w:m-Cresolpurper|m-Cresolpurper]]<ref name = "pH-meter" /> || 1.2 || 2.8 || rood || geel
|-
| [[w:Thymolblauw|Thymolblauw]]<ref name = "Binas" /><ref name = "pH-meter" /><ref name = "dubbel" /> || 1.2 || 2.8 || rood || geel
|-
| [[w:p-Xylenol blue|p-Xylenol blue]]<ref name = "pH-meter" /> || 1.2 || 2.8 || rood || geel
|-
| [[w:Eosine (blauwachtig)|Eosine (blauwachtig)]]<ref name = "pH-meter" /> || 1.4 || 2.8 || kleurloos || roze (fluoriscerend)
|-
| [[w:Quinaldine rood|Quinaldine rood]]<ref name = "pH-meter" /> || 1.4 || 3.2 || kleurloos || roze
|-
| [[w:2,4-Dinitrofenol|2,4-Dinitrofenol]]<ref name = "pH-meter" /> || 2.8 || 4.7 || kleurloos || geel
|-
| [[w:4-(Dimethylamino)azobenzeen|4-(Dimethylamino)azobenzeen]]<ref name = "pH-meter" /> <br />[[w:Dimethylgeel|Dimethylgeel]]<ref name = "Binas" />|| 2.9 || 4.0 || rood || geel/oranje<ref>Gezien de samenvallende eigenschappen en de grote gelijkenis van de namen gaat het hier waarschijnlijk om dezelfde stof.</ref>
|-
| [[w:Broomchloorfenol blauw|Broomchloorfenol blauw]]<ref name = "pH-meter" /> || 3.0 || 4.6 || geel || blauw/violet
|-
| [[w:Broomfenolblauw|Broomfenolblauw]]<ref name = "pH-meter" /> || 3.0 || 4.6 || geel || blauw/violet
|-
| [[w:Congorood|Congorood]]<ref name = "Binas" /><ref name = "pH-meter" /> || 3.0 || 5.0<ref name = "Binas" /><br />5.2<ref name = "pH-meter" /> || blauw || geel/oranje
|-
| [[w:Methyloranje|Methyloranje]]<ref name = "Binas" /><ref name = "pH-meter" /> || 3.1 || 4.4 || rood || geel/oranje
|-
| [[w:Broomkresolgroen|Broomkresolgroen]]<ref name = "Binas" /><ref name = "pH-meter" /> || 3.8 || 5.4 || geel || blauw
|-
| [[w:2,5-Dinitrophenol|2,5-Dinitrophenol]]<ref name = "pH-meter" /> || 4.0 || 5.8 || kleurloos || geel
|-
| [[w:Alizarinsulfonzuur|Alizarinsulfonzuur]]<ref name = "pH-meter" /> || 4.3 || 6.3 || geel || violet
|-
| [[w:Methylrood|Methylrood]]<ref name = "Binas" /><ref name = "pH-meter" /> || 4.8<ref name = "Binas" /><br />4.4<ref name = "pH-meter" /> || 6.0<ref name = "Binas" /><br />6.2<ref name = "pH-meter" /> || rood || geel/oranje
|-
| [[w:Chloorfenolrood|Chloorfenolrood]]<ref name = "pH-meter" /> || 4.8 || 4.6 || geel || purper
|-
| [[w:Lakmoes|Lakmoes]]<ref name = "Binas" /><ref name = "pH-meter" /> || 5.5<ref name = "Binas" /><br />5.0<ref name = "pH-meter" /> || 8.0 || rood || blauw
|-
| [[w:Broomcresolpurper|Broomcresolpurper]]<ref name = "pH-meter" /> || 5.2 || 6.8 || geel || purper
|-
| [[w:Broomfenolrood|Broomfenolrood]]<ref name = "Binas" /><ref name = "pH-meter" /> || 5.2 || 6.8 || oranje/geel || purper
|-
| [[w:4-Nitrofenol|4-Nitrofenol]]<ref name = "pH-meter" /> || 5.4 || 7.5 || kleurloos || geel
|-
| [[w:Broomxylenolblauw|Broomxylenolblauw]]<ref name = "pH-meter" /> || 5.7 || 7.5 || geel || blauw
|-
| [[w:Broomthymolblauw|Broomthymolblauw]]<ref name = "Binas" /><ref name = "pH-meter" /> || 6.0 || 7.6 || geel || blauw
|-
| [[w:Fenolrood|Fenolrood]]<ref name = "Binas" /><ref name = "pH-meter" /> ||6.6<ref name = "Binas" /><br />6.4<ref name = "pH-meter" /> || 8.2<ref name = "pH-meter" /><br />8.0<ref name = "Binas" /> || geel || red/violet
|-
| [[w:3-Nitrofenol|Nitrofenol]]<ref name = "pH-meter" /> || 6.6 || 8.6 || kleurloos || geel/oranje
|-
| [[w:Neutraalrood|Neutraalrood]]<ref name = "Binas" /><ref name = "pH-meter" /> || 6.8 || 8.0 || blauw/rood || oranje/geel
|-
| [[w:Kresolrood|Kresolrood]]<ref name = "Binas" /><ref name = "pH-meter" /><ref name = "dubbel"> || 7.0 || 8.8 || oranje || purper
|-
| [[w:1-Naftylftaleïne|1-Naftylftaleïne]]<ref name = "pH-meter" /> || 7.1 || 8.3 || bruinig || blauw/groen
|-
| [[w:m-Cresolpurper|m-Cresolpurper]]<ref name = "pH-meter" /> || 7.4 || 9.0 || geel || purper
|-
| [[w:Thymolblauw|Thymolblauw]]<ref name = "Binas" /><ref name = "pH-meter" /><ref name = "dubbel"> || 8.0 || 9.6 || geel || blauw
|-
| [[w:p-Xylenolblauw|p-Xylenolblauw]]<ref name = "pH-meter" /> || 8.0 || 9.6 || geel || blauw
|-
| [[w:Fenolftaleïne|Fenolftaleïne]]<ref name = "Binas" /><ref name = "pH-meter" /> || 8.2 || 9.8<ref name = "pH-meter" /><br />10.0<ref name = "Binas" /> || kleurloos || rood/violet
|-
| [[w:Thymolftaleïne|Thymolftaleïne]]<ref name = "Binas" /><ref name = "pH-meter" /> || 9.4<ref name = "Binas" /><br />9.3<ref name = "pH-meter" /> || 10.6<ref name = "Binas" /><br />10.5<ref name = "pH-meter" /> || kleurloos || blauw
|-
| [[w:Alkaliblauw|Alkaliblauw]]<ref name = "pH-meter" /> || 9.4 || 14.0 || violet || roze
|-
| [[w:Alizarinegeel|Alizarinegeel]]<ref name = "pH-meter" /> || 10.0 || 12.1 || helder geel || bruingeel
|-
| [[w:Alizarinegeel-R|Alizarinegeel-R]]<ref name = "Binas" /> || 10.1 || 12.0 || lichtgeel || rood
|-
| [[w:Indigokarmijn|Indigokarmijn]]<ref name = "pH-meter" /> || 11.5 || 13.0 || blauw || geel
|-
| [[w:Epsilonblauw|Epsilonblauw]]<ref name = "pH-meter" /> || 11.6 || 13.0 || oranje || violet
|-
| [[w:Titaangeel|Titaangeel]]<ref name = "pH-meter" /> || 12.0 || 13.0 || geel || rood
|-
| [[w:1,3,5-trinitrobenzeen|1,3,5-Trinitrobenzeen]]<ref name = "Binas" /> || 12.0 || 14.0 || kleurloos || oranje
|}
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