Subject reaction with sulfite

F. Sodium Bisulfite Addition Product Formation The red color of aminochrome solutions is rapidly discharged by the addition of sodium bisulfite with the formation of pale-yellow fluorescent solutions. The reactions of adrenochrome with sulfites and bisulfites have been the subject of several previous reports.12, 102.109.118,119.123,128,148.182.155. 158,173-177 Although it was originally... 

The wide use of sulfites in the food industry and the lack of critical information about their effects on foods prompted the editors to seek contributions in this field. Gehman and Osman and Joslyn and Braver-man have come forward with two excellent articles relating to both the fundamental and practical aspects of using sulfites in foods. The former authors have confined themselves to the all-important subject of sugar-sulfite reactions in foods while the latter discuss the many uses for, and effects of sulfites. 

Diazonium ions react with all known nucleophiles. The addition of hydroxide, alkoxide, cyanide and sulfite ions does not belong to the subject of this review, but the formation of diazoamino compounds (1,3-triazenes) formed with ammonia, primary and secondary amines does. In analogy with the other reactions discussed in this paper, where carbon atoms are the site of attack by diazonium ions (C-coupling), these reactions are called N-coupling reactions. 

Decomposes when heated above melting point, 536°F/280°C, producing toxic fumes of arsenic, lead. Lead arsenates may be subject to redox reactions. Both arsenic and lead are known human carcinogens. PLUMBOUS ACETATE (6080-56-4) Pb(CjH302)2 3H,0 Contact with acids forms acetic acid. Incompatible with oxidizers, bases, acetic acid alkalis, alkylene oxides, ammonia, amines, bromates, carbonates, citrates, chlorides, chloral hydrate cresols, epichlorohydrin, hydrozoic acid, isocyanates, methyl isocyanoacetate, phenols, phosphates, salicylic acid sodium salicylate, sodium peroxyborate, potassium bromate resorcinol, salicylic acid, strong oxidizers, sulfates, sulfites, tannin, tartrates, tinctures trinitrobenzoic acid, urea nitrate. On small fires, use dry chemical, Halon, or CO2 extinguishers. 

The Mo-Sx bonds (x = 1, 2, 4) within the Mo(OXSx) units react readily with SO2 to give various products that contain thiosulfite, thiosulfate, sulfite, or sulfate ligands (Tables V and VI). These reactions are best described as electrophilic additions to the Mo-S bond and in many instances may be subject to the effects of the spectator Mo=0 group (see Section III,B). 

The oxygen-bound sulfate complex [Co(tren)(OH2)OS02] is formed by reaction of [Co(tren)(OH2)OH] with SO3 and undergoes internal electron transfer to give cobalt(II) and SO4 with a rate constant 1.0 X 10 s" at 25 C and pH less than 5.4. Activation parameters are MI 24 kcal moF and AS 8.2 cal moF. At higher pH a bis-sulfite complex which is not subject to internal redox is formed. Infrared evidence points to both S and O binding in this species. 

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