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preface to fifteenth edition

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8.28 SECTION 8<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 />

2-Amino-3-methylpentanoic acid 2.320(1) 9.758(0)<br />

3-Aminomethyl-6-methylpyridine 8.70(1)<br />

(30C)<br />

Aminomethylphosphonic acid 2.35 5.9 10.8<br />

2-Amino-2-methyl-1,3-propanediol 8.801<br />

2-Amino-2-methyl-1-propanol 9.694(1)<br />

2-Amino-2-methylpropanoic acid 2.357(1) 10.205(0)<br />

(2-Aminomethyl(pyridine ( 2.31(2) 8.79(1)<br />

0.5)<br />

2-Amino-3-methylpyridine<br />

7.24(1)<br />

4-Amino-3-methylpyridine<br />

9.43(1)<br />

2-Amino-4-methylpyridine<br />

7.48(1)<br />

2-Amino-5-methylpyridine<br />

7.22(1)<br />

2-Amino-6-methylpyridine<br />

7.41(1)<br />

2-Amino-4-methylpyrimidine<br />

4.11(1)<br />

(20C)<br />

Aminomethylsulfonic acid<br />

5.57(1)<br />

N-Aminomorpholine<br />

4.19(1)<br />

4-Amino-1-naphthalenesulfonic 2.81<br />

acid<br />

1-Amino-2-naphthalenesulfonic 1.71<br />

acid<br />

1-Amino-3-naphthalenesulfonic 3.20<br />

acid<br />

1-Amino-5-naphthalenesulfonic 3.69<br />

acid<br />

1-Amino-6-naphthalenesulfonic 3.80<br />

acid<br />

1-Amino-7-naphthalenesulfonic 3.66<br />

acid<br />

1-Amino-8-naphthalenesulfonic 5.03<br />

acid<br />

2-Amino-1-naphthalenesulfonic 2.35<br />

acid<br />

2-Amino-4-naphthalenesulfonic 3.79<br />

acid<br />

2-Amino-6-naphthalenesulfonic 3.79 8.94<br />

acid<br />

2-Amino-8-naphthalenesulfonic 3.89<br />

acid<br />

3-Amino-1-naphthoic acid 2.61 4.39<br />

4-Amino-2-naphthoic acid 2.89 4.46<br />

8-Amino-2-naphthol4.20(1)<br />

DL-2-Aminopentanoic acid (DLnorvaline)<br />

2.318(1) 9.808<br />

3-Aminopentanoic acid 4.02(1) 10.399(0)<br />

4-Aminopentanoic acid 3.97(1) 10.46(0)<br />

5-Aminopentanoic acid 4.20(1) 9.758(0)<br />

5-Aminopentanoic acid, ethylester 10.151<br />

2-Aminophenol9.28 9.72<br />

3-Aminophenol9.83 9.87<br />

4-Aminophenol8.50 10.30<br />

4-Aminophenylacetic acid (20C) 3.60 5.26<br />

2-Aminophenylarsonic acid ca 2 3.77 8.66

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