Jared Durden, Craig Dunseth, Lakshmi N. Roy, and Rabindra N. Roy. Drury University, Springfield, MO
The values of pK2 as well as conventional pH values for a new zwitterionic amino acid substance "DIPSO" have been determined at temperatures from 5 to 55°C by the electromotive-force method using the cell: Pt; H2 (g, 1 atm), DIPSO (m1), NaDIPSOate (m2), NaCl (m3), AgCl, Ag. Two equimolal buffer solutions have been studied: (i) 0.08m DIPSO + 0.08m NaDIPSOate, and (ii) 0.08m DIPSO + 0.08m NaDIPSOate + 0.08m NaCl. This buffer compound has been recommended for pH standard values for biological specimens.
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