Editing Buffer solution (section)

===Common buffer compounds used in biology===
For effective range see [[#buffer capacity|Buffer capacity]], above. Also see [[Good's buffers]] for the historic design principles and favourable properties of these buffer substances in biochemical applications. 
{| class="wikitable"
|-
! Common name (chemical name)
! Structure
! [[Acid dissociation constant|p''K''<sub>a</sub>]], <br/>25&nbsp;°C
! {{abbr|Temp.|Temperature}} effect, <br/>{{sfrac|dpH|d''T''}} (K<sup>−1</sup>)<ref>{{Cite web |title=Buffer Reference Center |url=http://www.sigmaaldrich.com/life-science/core-bioreagents/biological-buffers/learning-center/buffer-reference-center.html |publisher=Sigma-Aldrich |access-date=2009-04-17 |url-status=live |archive-url=https://web.archive.org/web/20090417003507/http://www.sigmaaldrich.com/life-science/core-bioreagents/biological-buffers/learning-center/buffer-reference-center.html |archive-date=2009-04-17 }}</ref>
! [[Molecular weight|Mol. <br/>weight]] 
|-
| [[TAPS (buffer)|TAPS]], <br/>([tris(hydroxymethyl)methylamino]propanesulfonic acid)
| [[file:TAPS.svg|200px]] || 8.43 || −0.018 || 243.3
|-
| [[Bicine]], <br/>(2-(bis(2-hydroxyethyl)amino)acetic acid)
| [[file:Bicine.png|150px]] || 8.35 || −0.018 || 163.2
|-
| [[Tris]], <br/>(tris(hydroxymethyl)aminomethane, or <br/>2-amino-2-(hydroxymethyl)propane-1,3-diol)
| [[file:tris.png|100px]] || 8.07{{efn|text=Tris is a base, the p''K''<sub>a</sub> = 8.07 refers to its conjugate acid.}} || −0.028 || 121.14
|-
| [[Tricine]], <br/>(N-[tris(hydroxymethyl)methyl]glycine)
||[[file:Tricine.svg|150px]] || 8.05 || −0.021 || 179.2
|-
| [[TAPSO (buffer)|TAPSO]], <br/>(3-[N-tris(hydroxymethyl)methylamino]-2-hydroxypropanesulfonic acid)
||[[file:TAPSO.svg|200px]] || 7.635 ||  || 259.3
|-
| [[HEPES]], <br/>(4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid)
| [[file: HEPES.png|200px]] || 7.48 || −0.014 || 238.3
|-
| [[TES (buffer)|TES]], <br/><nowiki>(2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]ethanesulfonic acid)</nowiki>
| [[file:TES free acid.svg|200px]] || 7.40 || −0.020 || 229.20
|-
| [[MOPS]], <br/>(3-(N-morpholino)propanesulfonic acid)
| [[file:Mops is.svg|150px]] || 7.20 || −0.015 || 209.3
|-
| [[PIPES]], <br/>(piperazine-N,N′-bis(2-ethanesulfonic acid))
| [[file:PIPES.svg|200px]] || 6.76 || −0.008 || 302.4
|-
| [[Cacodylate]], <br/>(dimethylarsenic acid)
| [[file:Cacodylic acid.svg|100px]] || 6.27 ||  || 138.0
|-
| [[MES (buffer)|MES]], <br/>(2-(N-morpholino)ethanesulfonic acid)
| [[file:MES.svg|150px]] || 6.15 || −0.011 || 195.2
|}
{{noteslist}}