Ammonium Sulfanilate

Ammonium Sulfanilate TS To 2.5 g of sulfanilic acid add 15 mL of water and 3 mL of 6 N ammonium hydroxide, and mix. Add, with stirring, more 6 N ammonium hydroxide, if necessary, until the acid dissolves, adjust the pH of the solution to about 4.5 with 2.7 N hydrochloric acid, using Bromocresol Green TS as an outside indicator, and dilute to 25 mL. 

Ammonium Standard Solution, 849 Ammonium Sulfanilate TS, 850 Ammonium Sulfate, 28 Ammonium Sulfide TS, 850 Ammonium Thiocyanate, 0.1 N, 856 Ammonium Thiocyanate TS, 850 Amyl Acetate, 510 1-Amyl Alcohol, 454, (S3)66 Amylase, 130, (S3)18 a-Amylase, 132, 786 P-Amylase, 132, 786 Amyl Butyrate, 454, 510, (S3)66 Amyl Caprylate, 454 Amylcinnamaldehyde, 454 a-Amylcinnamaldehyde, 454, 605,... 

Silica gel 60 F254 prcactivalcd at 110°C. Acctonc-mctlianol-aq. NH3 (70 30 1). Acetone-aq. ammonia (50 1). Ammonium acetate-water-methanol (3 20 100). Diazoli/.ed sulfanilic acid 45... 

A method [17] has been described for the determination of nitrate and nitrite nitrogen and ammonium ions in the 2 M potassium chloride extracts of moist soils. Firstly, an aliquot of the extract is made alkaline and the released ammonia determined via an ammonia-selective probe or titrimetrically. The nitrate in the ammonia-free extract is then reduced to ammonia with Devarda s alloy and the ammonia removed by distillation and determined titrimetrically. The concentration of nitrite in the extract is then determined spectrophoto-metrically as the red dye formed by coupling diazotised sulfanilic acid with N naphthylethylenediamine hydro chloride. 

Annapurna et al. [13] established simple, accurate, and reproducible UV spectrophotometric methods for fhe assay of buclizine based on the formation of precipitation, charge transfer, and redox products. Precipitation/ charge transfer complex formation of fhe buclizine with I2/p-nitro methyl amino phenol sulfate-sulfanilic acid by method A, the precipitation/complex formation with ammonium molybdate/potassium thiocyanate by method B and precipitation/redox reaction of buclizine with phosphomolybdic acid/Co /EDTA by method C were proposed. Determination of buclizine in bulk form and in pharmaceutical formulations was also incorporated. 

Simple meta-substituted phenylsulfamates (91) are sweet, but not the corresponding ortho-isomers or para-isomers. The free arylsulfamic acids (92) were first prepared by Kanetani (1980) by acidification of the corresponding ammonium salts (Figure 4).7 Phenylsulfamic acid (92) (Ar = Ph) was obtained by this procedure this compound has for long been postulated as an intermediate in the baking process for the sulfonation of aniline to sulfanilic acid (see Chapter 7, p. 99). 

The same method can be used with anilines because para-sulfonation of aromatic amines is possible. This seems surprising because in sulfuric acid essentially all the amine will be protonated. You might expect the resulting ammonium ion to react in the meta position (because NH is no longer electron-rich) but instead the para-sulfonic acid (sulfanilic acid) is formed. At the high temperature of the reaction, it is probable that any meta-substituted product reverts to the starting material, while the para-sulfonic acid accumulates because it is stabilized by delocalization and is less hindered. 

Diethylamine acetate Pyridiniiim salt T etramethylammonium acetate, Tetraethyl-ammonium-Piperidinium acetate Isoxazolium salts Trialky loxonium salt Amidinium salts Ketenimines Diazo compounds Diazomethane, Phenyl-diazomethane K-methy Idiazotate Hexamethylenetetramine Azo compounds Azodicarboxamide ROOC-N N-COOR A zodiisobuty ronitrile T riazenes Azidinium salts p-Nitrobenzene-diazonium sulfate Sulfanilic acid, diazotized... 

Dragosantol 2/012681 Hydagen B Uhydagen B 208-208-5 Sodium sulfanilate 208-214-8 Ammonium lactate Lexalt AL Purasal NH 70 Purasal NH/COS 208-220-0 DL-a-Valine 208-237-3 Hematoxylin 208-253-0 D C Yellow No. 8 Fluorescein sodium 208-258-8 Emodin 208-288-1 Hesperidin 208-292-3 Apigenin 208-293-9 Dehydroacetic acid Unisept DHA 208-360-2... 

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