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preface to fifteenth edition

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ELECTROLYTES, EMF, AND CHEMICAL EQUILIBRIUM 8.65<br />

TABLE 8.8<br />

pK a Values of Organic Materials in Water at 25C (Continued)<br />

Substance pK 1 pK 2 pK 3 pK 4<br />

Phenylphosphonic acid 1.83 7.07<br />

O-Phenylphosphorylserine 2.13(1) 8.79<br />

O-Phenylphosphorylserylglycine 3.18(1) 6.95(0)<br />

O-Phenylphosphoryl-L-seryl-L-leucine<br />

3.16(1) 7.12(0)<br />

N-Phenylpiperazine ( 0.1) 8.71(1)<br />

2-Phenylpropanoic acid 4.38<br />

3-Phenylpropanoic acid (35C) 4.664<br />

3-Phenyl-1-propylamine<br />

10.39(1)<br />

Phenylpropynoic acid (35C) 2.269<br />

Phenylselenic acid 4.79<br />

Phenylselenoacetic acid ( 0.1) 3.75<br />

-Phenylserine ( 0.16) 8.79(0)<br />

Phenylsuccinic acid (20C) 3.78 5.55<br />

Phenylsulfenylacetic acid 2.66<br />

Phenylsulfonylacetic acid 2.44<br />

5-Phenyl-1,2,3,4-tetrazole<br />

4.38(1)<br />

1-Phenyl-1,2,3-triazole-4-carboxylic<br />

2.88<br />

acid<br />

1-Phenyl-1,2,3-triazole-4,5-dicarboxylic<br />

2.13 4.93<br />

acid<br />

Phosphoramidic acid 3.08 8.63<br />

O-Phosphorylethanolamine 5.838(1) 10.638(0)<br />

O-Phosphorylserylglycine 3.13 5.41 8.01<br />

O-Phosphoryl-L-seryl-L-leucine 3.11 5.47 8.26<br />

Phosphoserine 2.08 5.65 9.74<br />

Phthalamide 3.79(0)<br />

Phthalazine<br />

3.47(1)<br />

o-Phthalic acid 2.950 5.408<br />

Phthalimide 9.90(0)<br />

Physostigmine 1.76(1) 7.88(0)<br />

Picric acid (2,4,6-trinitrophenol) 0.419<br />

(18C)<br />

Pilocarpine 1.3(1) 6.85(0)<br />

Piperazine 5.333(2) 9.781(1)<br />

1,4-Piperazinebis(ethanesulfonic 6.80<br />

acid) (20C)<br />

Piperazine-2-carboxylic acid 1.5 5.41 9.53<br />

Piperdine<br />

11.123(1)<br />

2-Piperidinecarboxylic acid 2.12(1) 10.75(0)<br />

3-Piperidinecarboxylic acid 3.35(1) 10.64(0)<br />

4-Piperidinecarboxylic acid 3.73(1) 10.72(0)<br />

1-(2-Piperidinyl)-2-propanone 9.45<br />

(15C)<br />

Piperine (15C)<br />

1.98(1)<br />

Proline 1.99(1) 10.96(0)<br />

1,2-Propanediamine 6.607(2) 9.702(1)<br />

1,3-Propanediamine 8.49(2) 10.47(1)<br />

1-Propanethiol 10.86<br />

1,2,3-Propanetriamine 3.72(3) 7.95(2) 9.59(1)<br />

1,2,3-Propanetricarboxylic acid 3.67 4.87 6.38<br />

Propanoic acid 4.874<br />

Propenoic acid 4.247

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