Table 6.

Measured pH of base solutions.

Base solution	Measured pH
150 mM NaHCO3	8.18
1.0 M NaHCO3	8.10
75 mM Na2CO3	11.18
100 mM Na2CO3	11.33
150 mM Na2CO3	11.42
200 mM Na2CO3	11.35
250 mM Na2CO3	11.35
360 mM Na2CO3	11.37
1.0 M Na2CO3	11.66
100 mM NaOH + 100 mM NaCl	12.91
150 mM NaOH	12.95
75 mM Na2CO3 + 75 mM NaOH	12.64
150 mM Tris + 75 mM NaCl	10.08
150 mM Tris Buffer	8.11
167 mM NaHCO3 + 167 mM Na2CO3	9.80
333 mM NaHCO3 + 333 mM Na2CO3 (i.e., Carbicarb)	9.63
25 mM NaHCO3 + 125 mM Na2CO3	10.48
37.5 mM NaHCO3 + 112.5 mM Na2CO3	10.23