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Acids Hydroxylamine

Allied-Signal Process. Cyclohexanone [108-94-1] is produced in 98% yield at 95% conversion by liquid-phase catal57tic hydrogenation of phenol. Hydroxylamine sulfate is produced in aqueous solution by the conventional Raschig process, wherein NO from the catalytic air oxidation of ammonia is absorbed in ammonium carbonate solution as ammonium nitrite (eq. 1). The latter is reduced with sulfur dioxide to hydroxylamine disulfonate (eq. 2), which is hydrolyzed to acidic hydroxylamine sulfate solution (eq. 3). [Pg.429]

Besides Fe-, other reducing agents that may be used in conjunction with H2O2 are aliphatic amines, Na2S203 thiourea, ascorbic acid, glyoxal, sulfuric acid, NaHSOs, sodium nitrite, ferric nitrate, peroxidase, AgNOs, tartaric acid, hydroxylamine, ethylene sulfate, sodium phosphite, formic acid, ferrous ammonium sulphate, acetic acid, ferrous sulphate, and HNO2, etc,... [Pg.489]

Hydrolysis products Carbon dioxide, hydrochloric acid, hydroxylamine. [Pg.39]

Entry RMgBr6 Solvent Lewis acid Hydroxylamine syn/antH Yield (%)e Isolated Yield (%)/... [Pg.243]

Hydroxylamine hydrochloride was first prepared 1 by the reduction of ethyl nitrate by means of tin, with hydrochloric acid hydroxylamine salts have also been prepared by the reduction of nitric acid with metals.2 The. two important... [Pg.63]

Glucuronidation UDP glucuronic acid UDP glucuronosyltransferase (microsomes) Phenols, alcohols, carboxylic acids, hydroxylamines, sulfonamides Nitrophenol, morphine, acetaminophen, diazepam, N-hydroxydapsone, sulfathiazole, meprobamate, digitoxin, digoxin... [Pg.85]

Reductants such as quinol, ascorbic acid, hydroxylamine, hydrazine, K4Fe(CN)6 and tannin, and oxidants such as CeIV, CrVI, Mn04 can be determined spectrophotometrically at 462 nm.89... [Pg.559]

Nitrohydroxylamine acid. Hydroxylamine sulphonic acid. Benzene sulphohydroximtc acid. [Pg.307]

Nitric cid. Nitrous acid. Hyponitrous acid. Hydroxylamine. Ammonia. [Pg.404]

The sequential extraction of chromium from soils has been studied [89]. A three-step sequential extraction scheme has been proposed using acetic acid, hydroxylamine hydrochloride and ammonium acetate as extracting agents. Steps 1 and 2 were measured by electrothermal atomic absorption spectrometry (ETAAS). Step 3 was measured by flame atomic absorption spectrometry. Interfering effects when measuring chromium in soils were circumvented through the use of a 1% 5-hydroxyquinoline suppressor agent. [Pg.39]

Methods based on acid digestions of the soil with 7 M nitric acid [ 136] or sulfuric acid-nitric acid [137] have been described. Released mercury is absorbed in stannous chloride-sulfuric acid-hydroxylamine [ 136] or potassium permanganate-potassium persulfate-hydroxylamine-sodium chloride [137] prior to cold vapour atomic absorption spectrometry. [Pg.45]

Isobutylphenyl)propionic acid Hydroxylamine hydrochloride Ethanol... [Pg.1881]

Isopropyl ester of 6-formyl-5-methoxycarbonyl-2-methyl-4-(3-nitrophenyl)-l,4-dihydropyridine-3-carboxylic acid Hydroxylamine hydrochloride Sodium acetate Acetic anhydride... [Pg.2447]

Oxo-cyclohexyl)phenyl]propionic acid Hydroxylamine hydrochloride... [Pg.3483]

N,O-Dimethyl acetohydroxamic acid Hydroxylamine hydrochloride Phosgene... [Pg.3540]

Hydroxylamine hydrochloride forms monoclinic columnar crystals, which slowly decompose when exposed to air and water. It has a melting point of 151 Celsius, and is very soluble in water. Hydroxylamine hydrochloride is slightly soluble in methanol, but soluble in glycerol, and propylene glycol. Keep bottles well closed. Hydroxylamine hydrochloride is prepared by treating hydroxylamine with hydrochloric acid (hydroxylamine is prepared by dissolving metallic sodium into liquid ammonia, and then evaporating the excess liquid to obtain dry solid). Hydroxylamine hydrochloride is commercially available. [Pg.51]

Correlation coefficients shoving the relation of Zn to Fe, Mn, organic carbon and particle size in sediments extracted vith either acetic acid, hydroxylamine hydrochloride in 0.01 nitric acid, ammonium oxalate, ammonium acetate, or concentrated nitric acid. English data vcre log transforried for statistical analysis. [Pg.590]

Effective superadditive mixtures result from combinations of l-phenyl-3-pyrazolidinone (Phenidone) [48] and its derivatives with hydroquinone, ascorbic acid, /7-hydroxyphenylaminoacetic acid, hydroxylamines, pyrogallol, and other agents. In general, superadditivity is a phenomenon primarily used in black-and-white developers but it has also been observed in color development [49]. [Pg.3480]

Esters, unlike anhydrides and acid halides, do not react with water to give acidic solutions and do not react with acidic hydroxylamine hydrochloride. They do, however, react with alkaline hydroxylamine. [Pg.577]

See other pages where Acids Hydroxylamine is mentioned: [Pg.241]    [Pg.1177]    [Pg.798]    [Pg.518]    [Pg.1446]    [Pg.241]    [Pg.143]    [Pg.431]    [Pg.436]    [Pg.104]    [Pg.2233]    [Pg.288]    [Pg.288]    [Pg.296]    [Pg.429]    [Pg.582]    [Pg.591]    [Pg.310]    [Pg.183]    [Pg.21]    [Pg.51]    [Pg.140]    [Pg.127]    [Pg.4620]   
See also in sourсe #XX -- [ Pg.124 ]



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