pH pH pH Temperature Temperature Temperature 0 7.04 7.04 7.7 23.41 23.41 23.75 24 7.15 7.44 7.64 19.8 20.01 20.1 48 7.67 7.97 8.1 18.4 18.7 18.8 72 7.92 8 8.13 18.7 18.7 18.7