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Reaction of ammonia with trinitrobenzene sulfonic acid

✍ Scribed by John R. Whitaker; Per Einar Granum; Gunilla Aasen

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
340 KB
Volume
108
Category
Article
ISSN
0003-2697

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✦ Synopsis

Trinitrobenzene sulfonic acid reacts stoichiometrically with ammonia in tetraborate buffer within 20 min at 35Β°C to give a compound (presumably picramide) with an absorbance maximum at 420 nm and l , 2.02 rt 0.07 x lo* M-' cm-' in the presence of 1.0 mM sulfite ions. As little as 6 nmol of ammonia (AA,,, = 0.04) can be determined by reaction with 2,4,6-trinitrobenzene sulfonic acid with a precision of l-2%.

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