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preface to fifteenth edition

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ELECTROLYTES, EMF, AND CHEMICAL EQUILIBRIUM 8.37<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 />

3-Cyanophenol8.61<br />

o-Cyanophenoxyacetic acid 2.98<br />

m-Cyanophenoxyacetic acid 3.03<br />

p-Cyanophenoxyacetic acid 2.93<br />

2-Cyanopropanoic acid 2.37<br />

3-Cyanopropanoic acid 3.99<br />

2-Cyanopyridine<br />

0.26(1)<br />

3-Cyanopyridine<br />

1.45(1)<br />

4-Cyanopyridine<br />

1.90(1)<br />

Cyanuric acid 6.78<br />

Cyclobutanecarboxylic acid 4.785<br />

1,1-Cyclobutanedicarboxylic acid 3.13 5.88<br />

cis-1,2-Cyclobutanedicarboxylic 3.90 5.89<br />

acid<br />

trans-1,2-Cyclobutanedicarboxylic 3.79 5.61<br />

acid<br />

cis-1,3-Cyclobutanedicarboxylic 4.04 5.31<br />

acid<br />

trans-1,3-Cyclobutanedicarboxylic 3.81 5.28<br />

acid<br />

Cyclohexanecarboxylic acid 4.90<br />

1,1-Cyclohexanediacetic acid 3.49 6.96<br />

cis-1,2-Cyclohexanediacetic acid 4.42 5.45<br />

(20C)<br />

trans-1,2-Cyclohexanediacetic acid 4.38 5.42<br />

(20C)<br />

cis-1,2-Cyclohexanediamine 6.43(2) 9.93(1)<br />

trans-1,2-Cyclohexanediamine 6.34(2) 9.74(1)<br />

1,1-Cyclohexanedicarboxylic acid 3.45 4.11<br />

cis-1,2-Cyclohexanedicarboxylic 4.34 6.76<br />

acid (20C)<br />

trans-1,2-Cyclohexanedicarboxylic 4.18 5.93<br />

acid (20C)<br />

cis-1,3-Cyclohexanedicarboxylic 4.10 5.46<br />

acid (16C)<br />

trans-1,3-Cyclohexanedicarboxylic 4.31 5.73<br />

acid (19C)<br />

trans-1,4-Cyclohexanedicarboxylic 4.18 5.42<br />

acid (16C)<br />

1,3-Cyclohexanedione 5.26<br />

cis,cis-1,3,5-Cyclohexanetriamine 6.9(3) 8.7(2) 10.4(1)<br />

Cyclohexanonimine 9.15<br />

cis-4-Cyclohexene-1,2-dicarboxylic 3.89 6.79<br />

acid (20C)<br />

trans-4-Cyclohexene-1,2-dicarboxylic<br />

3.95 5.81<br />

acid (20C)<br />

Cyclohexylacetic acid 4.51<br />

Cyclohexylamine<br />

10.64(1)<br />

2-(Cyclohexylamino)ethanesulfonic 9.55<br />

acid (CHES) (20C)<br />

3-Cyclohexylamino-1-propanesulfonic<br />

10.40<br />

acid (CAPS) (20C)<br />

4-Cyclohexylbutanoic acid 4.95

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