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preface to fifteenth edition

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ELECTROLYTES, EMF, AND CHEMICAL EQUILIBRIUM 8.71<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 />

2,4,6-Trimethylaniline<br />

4.38(1)<br />

2,4,6-Trimethylbenzoic acid 3.448<br />

Trimethylenebis(thioacetic acid) 3.435 5.383<br />

(18C)<br />

2,3,4-Trimethylphenol 10.59<br />

2,4,5-Trimethylphenol 10.57<br />

2,4,6-Trimethylphenol 10.88<br />

3,4,5-Trimethylphenol 10.25<br />

2,3,6-Trimethylpyridine ( 0.5) 7.60(1)<br />

2,4,6-Trimethylpyridine<br />

7.43(1)<br />

2,4,6-Trimethylpyridine-1-oxide 1.990(1)<br />

3-(Trimethylsilyl)benzoic acid 4.089<br />

4-(Trimethylsilyl)benzoic acid 4.192<br />

2,4,5-Trimethylthiazole ( 0.1) 4.55<br />

2,4,6-Trinitroaniline (picramide) 10.23(1)<br />

2,4,6-Trinitrobenzene acid 0.654<br />

2,2,2-Trinitroethanol 2.36<br />

Trinitromethane (20C) 0.17<br />

Triphenylacetic acid 3.96<br />

Tripropylamine<br />

10.66(1)<br />

Tris(2-hydroxyethyl)amine<br />

7.762(1)<br />

Tri(hydroxymethyl)aminomethane 8.08(1)<br />

(TRIS)<br />

2-[Tris(hydroxymethyl)methyl 7.50<br />

amino]-1-ethanesulfonic acid<br />

(TES)<br />

3-[Tris(hydroxymethyl)methyl 8.4<br />

amino]-1-propanesulfonic acid<br />

(TAPS) (20C)<br />

N-[Tris(hydroxymethyl)methyl]- 2.023(1) 8.135<br />

glycine (tricine)<br />

Tris(trimethylsilyl)amine<br />

4.70(1)<br />

Trithiocarbonic acid (20C) 2.64<br />

Tropacocaine (15C)<br />

9.88(1)<br />

3-Tropanol (tropine)<br />

10.33(1)<br />

Trypsin ( 0.1) 6.25<br />

L-Tryp<strong>to</strong>phan 2.38(1) 9.39(0)<br />

DL-Tyrosine 2.18(1) 9.11(0) 10.6(OH)<br />

Tyrosine amide 7.48 9.89<br />

Tyrosine, ethyl ester 7.33 9.80<br />

Tyrosylarginine ( 0.01) 2.65(1) 7.39(0) 9.36(1) 11.62(2)<br />

Tyrosyltyrosine 3.52(1) 7.68(0) 9.80(1) 10.26(2)<br />

-Ureidobutanoic acid 3.886(0)<br />

-Ureidobutanoic acid 4.683(0)<br />

-Ureidopropanoic acid 4.487(0)<br />

Uric acid 5.40 5.53<br />

Uridine 9.30<br />

Uridine-5-diphosphoric acid 7.16<br />

Uridine-5-phosphoric acid (5-uridylic<br />

6.63<br />

acid)<br />

Uridine-5-triphosphoric acid 7.58

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