# pI undefined # pH chg 0.00 -0.00 0.50 -0.00 1.00 -0.01 1.50 -0.03 2.00 -0.08 2.50 -0.20 3.00 -0.45 3.50 -0.72 4.00 -0.89 4.50 -0.96 5.00 -0.99 5.50 -1.00 6.00 -1.00 6.50 -1.00 7.00 -1.00 7.50 -1.00 8.00 -1.00 8.50 -1.00 9.00 -1.00 9.50 -1.00 10.00 -1.00 10.50 -1.00 11.00 -1.00 11.50 -1.00 12.00 -1.00 12.50 -1.00 13.00 -1.00 13.50 -1.00 14.00 -1.00