Abstract
The TRIS buffer system is frequently used to calibrate electrodes and indicators that are used to determine the pH of natural waters. Most of the potentiometrie and spectrophotometric systems used to measure the pH are calibrated with TRIS buffers. Since most natural waters contain high concentrations of NaCl, it is useful to be able to determine the pK of TRIS using ionic interaction models. In this paper, the dissociation constants of TRIS in NaCl solutions from (0 to 100) °C and (0 to 5) mol·kg -1 have been fitted to Pitzer equations. This allows one to estimate the values of the pH for TRIS buffers for natural brines over a wide range of conditions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 342-344 |
| Number of pages | 3 |
| Journal | Journal of Chemical and Engineering Data |
| Volume | 54 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 12 2009 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
Cite this
Use of the pitzer equations to examine the dissociation of TRIS in NaCl solutions. / Millero, Frank J.
In: Journal of Chemical and Engineering Data, Vol. 54, No. 2, 12.02.2009, p. 342-344.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Use of the pitzer equations to examine the dissociation of TRIS in NaCl solutions
AU - Millero, Frank J
PY - 2009/2/12
Y1 - 2009/2/12
N2 - The TRIS buffer system is frequently used to calibrate electrodes and indicators that are used to determine the pH of natural waters. Most of the potentiometrie and spectrophotometric systems used to measure the pH are calibrated with TRIS buffers. Since most natural waters contain high concentrations of NaCl, it is useful to be able to determine the pK of TRIS using ionic interaction models. In this paper, the dissociation constants of TRIS in NaCl solutions from (0 to 100) °C and (0 to 5) mol·kg -1 have been fitted to Pitzer equations. This allows one to estimate the values of the pH for TRIS buffers for natural brines over a wide range of conditions.
AB - The TRIS buffer system is frequently used to calibrate electrodes and indicators that are used to determine the pH of natural waters. Most of the potentiometrie and spectrophotometric systems used to measure the pH are calibrated with TRIS buffers. Since most natural waters contain high concentrations of NaCl, it is useful to be able to determine the pK of TRIS using ionic interaction models. In this paper, the dissociation constants of TRIS in NaCl solutions from (0 to 100) °C and (0 to 5) mol·kg -1 have been fitted to Pitzer equations. This allows one to estimate the values of the pH for TRIS buffers for natural brines over a wide range of conditions.
UR - http://www.scopus.com/inward/record.url?scp=65249129690&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=65249129690&partnerID=8YFLogxK
U2 - 10.1021/je800387n
DO - 10.1021/je800387n
M3 - Article
AN - SCOPUS:65249129690
VL - 54
SP - 342
EP - 344
JO - Journal of Chemical & Engineering Data
JF - Journal of Chemical & Engineering Data
SN - 0021-9568
IS - 2
ER -