The pH of estuarine waters
Open Access
- 1 July 1986
- journal article
- research article
- Published by Wiley in Limnology and Oceanography
- Vol. 31 (4), 839-847
- https://doi.org/10.4319/lo.1986.31.4.0839
Abstract
The emf measurements for the TRIS buffer in seawater have been used to define buffer solutions that can be used to determine the pH on a free or total proton scale for estuarine waters. The pH is related to the stoichiometric dissociation constant (K*) of TRISH, the concentration of buffer (mTRIS) and salinity (S) by urn:x-wiley:00243590:media:lno19863140839:lno19863140839-math-0001 where a = −9.73 × 10−5 and b = 6.988 × 10−5. The values of pK* were fit to equations of the form urn:x-wiley:00243590:media:lno19863140839:lno19863140839-math-0002 where A, B, and C are functions of salinity and T is the absolute temperature.An electrode system with liquid junction was used to measure these buffers to compare the various pH scales.This publication has 2 references indexed in Scilit:
- Ionization of water in seawaterMarine Chemistry, 1973
- Ionic medium effects in sea water — A comparison of acidity constants of carbonic acid and boric acid in sodium chloride and synthetic sea waterMarine Chemistry, 1973