Sulfonation hydroxylamine disulfonate

The reaction is reversible, but the state of equilibrium highly favors the desired products. Preparations of large quantities for synthetic work are illustrated for methyl ethyl ketoxime, cyclohexanone oxime, hept-aldoxime, and benzophenone oxime, the procedures varying somewhat with the nature of the carbonyl compound. In some instances, a readily available and cheap reagent like sodium hydroxylamine disulfonate, HON(SO,Na)j, is first prepared from sodium nitrite and sodium bisulfite and, without isolation, treated with the carbonyl compound, Hydioxylamine-O sulfonic add, Ii,NOSO,H, is still another reagent and, like sodium hydroxylamine disulfonate, is used in the absence of a base. The preparation of hydroxylamine hydrochloride is described. ... 

Further sulfonation to produce hydroxylamine disulfonate and amine trisulfonate. These sulfonates can hydrolyze to form sulfuric acid and reduced nitrogen species. The latter can undergo further reaction with bisulfite and nitrite. 

Sulfonation of Hydroxylamine Disulfonate. Seel et al. (14) studied the reaction between HADS and bisulfite and found that this reaction produced about 70% aminetrisulfonate (ATS) and 30% aminedisulfonate (ADS) in the temperature range from 25 to 60°C and ionic strength from 1.0 to 1.2 M, with reaction times ranging up to 4.5 hr at a pH of 7. The reaction proceeds according to Eqs. (14) and (15) ... 

Sulfur dioxide or bisulfites are rarely used in combination with nitrites, because their reactions in acidic media yield sulfonates of either hydroxylamine or ammonia, which destroys the preservative activity of the individual additives. The reaction of alkali metal nitrites with bisulfite at lower temperatures leads to the formation of hydroxylamine N, JV-disulfonate, H0N(S03)2, which is hydrolysed to hydroxylamine JV-sulfonate, HONHSOj and further to hydroxylamine (H2NOH). At elevated temperatures complete substitution proceeds with the formation of ammonia JV-trisulfonate, N(S03)j , which is hydrolysed to sulfa-mate, H2NSOj . Subsequent reaction of sulfamate with nitrous acid leads to production of bisulfate ion and nitrogen gas ... 

Ammonium nonoxynol-4 sulfate Ammonium nonoxynol-6 sulfate Ammonium phosphate Antimony trichloride Butylated PVP Ceteareth-4 Ceteareth-6 Ceteareth-8 Ceteareth-10 Ceteareth-11 Ceteareth-14 Ceteareth-18 Ceteareth-80 Chitosan Chloro-2-hydroxypropyl trimonium chloride Cyanamide-formaldehyde resin Dibehenyidimonium chloride Diethylene glycol Disodium arsenate Hydrogenated tallowalkonium chloride Hydroxylamine sulfate lsodeceth-6 Lauryl hydroxyethyl imidazoline Lysolecithin MEA-dodecylbenzene sulfonate Octoxynol-25 Oleth-18 Oxalic acid dihydrate PCA PEG-80 castor oil PEG lauramine PEG laurate PEG-20 laurate PEG-14 oleate PEG-5 stearate PEG-23 stearate PEG-8 tallate Potassium acid tartrate Sodium arsenate Sodium chromate Sodium dodecyl diphenyloxide disulfonate Sodium methyl oleoyl taurate Sodium methyl tallow taurate Sodium sulfate... 

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