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Sulfites, uses

The parent acid has no independent existence and has not been detected in aqueous solution either. Sodium dithionite is widely used as an industrial reducing agent and can be prepared by reduction of sulfite using Zn dust, Na/Hg or electrolytically, e.g. ... [Pg.720]

With or without acids, alkalis, salts, with exception of aimnonium and sulfite With or without acids, alkalis, salts, in presence of sulfites (sulfurous acid, Na or K sulfite and bisulfite) no ammonium compounds used With or without acids, alkalis, salts, in presence of ammonium compounds (hydroxide, carbonate, ammonium hydrogen carbonate, phosphate) no sulfite used With or without acids, alkalis, salts, in presence of ammonium compounds and sulfite... [Pg.337]

Matsumura M, Saho Y, Tsubomura H (1983) Pbotocatalytic hydrogen production from solutions of sulfite using platinized cadmium sulfide powder. J Phys Chem 87 3807-3808... [Pg.479]

I Contraindications ttypersensitivity to sulfonamides or any component of preparation (some products contain sulfite), use in combination with silver-containing products... [Pg.1157]

Preparation of Cyclic Sulfites Using 1,2- or 1,3-Diols According to Procedure 2-2... [Pg.45]

Preparation of Unsymmetrically Substituted Sulfites Using Chlorosulfinates... [Pg.46]

Ammonia was also used during WWII in the USA for the neutralization of residual acidity in crude TNT prior to its purification by sel-litefaqueous soln of Na sulfite). Use of ammonia in lieu of soda ash as a neutralizer produced a lighter colored TNT(See Trinitrotoluene, Manufacture of)... [Pg.301]

Pulping [CELLULOSE] (Vol 5) cellulose from [CELLULOSE] (Vol 5) hemicellulosedunng [HEMICELLULOSE] (Vol 13) m paper recycling [RECYCLING - PAPER] (Vol 21) sodium sulfite used m [SULFURCOMPOUNDS] (Vol 23)... [Pg.825]

The term Cellite has also been applied to the aq soln of Na sulfite used for the purification of crude TNT(Ref 1) i e/s l)Clift Fedoroff, 1(1942), Chap VI,p 3 2)Gardner s Chem Synonyms(1948), 121 3) CondChemDict(196l)-not found... [Pg.488]

Uses As a solvent of most resinous substances. Used in some developer formulas as a source of alkali by reaction with sulfite useful as a drier and as an ingredient in toning formulas. Caution Highly volatile and inflammable. [Pg.170]

Sulfur dioxide3, sulfite Used as a preservative and antioxidant in wines, dried fruits,... [Pg.374]

Fig. 9. Reaction steps involved in the synthesis of decyl sulfonate from decyl bromide and sodium sulfite using phase transfer catalysis. Q stands for tetrabutylammonium... Fig. 9. Reaction steps involved in the synthesis of decyl sulfonate from decyl bromide and sodium sulfite using phase transfer catalysis. Q stands for tetrabutylammonium...
Fig. 10. Reaction profiles for synthesis of 2-hydroxyoctyl sulfonate from 1,2-epoxyoctane and hydrogen sulfite using either a two-phase system with or without added Q salt or a microemulsion with added Q salt as reaction medium. Q stands for tetrabutylammonium (from [51])... Fig. 10. Reaction profiles for synthesis of 2-hydroxyoctyl sulfonate from 1,2-epoxyoctane and hydrogen sulfite using either a two-phase system with or without added Q salt or a microemulsion with added Q salt as reaction medium. Q stands for tetrabutylammonium (from [51])...
Figure 11-1 The Various Forms of S02 in Wine and Their Activity. Source Reprinted with permission from J.M. deMan, 500 Years of Sulfite Use in Winemaking, Am. Wine Soc. J., Vol. 20, pp. 44 16, 1988, American Wine Society. Figure 11-1 The Various Forms of S02 in Wine and Their Activity. Source Reprinted with permission from J.M. deMan, 500 Years of Sulfite Use in Winemaking, Am. Wine Soc. J., Vol. 20, pp. 44 16, 1988, American Wine Society.
Photocatalytic Hydrogen Production from Solutions of Sulfite using Platinized Cadmium Sulfide Powder See Entry 12 above. 501... [Pg.204]

In Europe, the acceptable daily intake of sodium metabisulfite and other sulfites used in foodstuffs has been set at up to 3.5 mg/kg body-weight, calculated as sulfur dioxide (SO2). The WHO has similarly also set an acceptable daily intake of sodium metabisulfite, and other sulfites, at up to 7.0 mg/kg body-weight, calculated as sulfur dioxide (SOi). ... [Pg.691]

Clinical oral and ocular-exposure studies found no adverse effects for the sulfites used in cosmetics. [Pg.2505]

Like the epoxides, cyclic sulfates can be opened with inversion of configuration by nucleophilic attack at a carbon center (Scheme 40). The cyclic sulfates are easily prepared by oxidation of the corresponding sulfites using stoichiometric amounts of NaI04 and catalytic quantities of RUCI3.3H2O [117]. Simple filtration... [Pg.733]

B.X. Li, Z.J. Zhang, M.L. Wu, Flow-injection chemiluminescence determination of sulfite using on-line electrogenerated silver(II) as the oxidant, Anal. Chim. Acta 432... [Pg.424]

See other pages where Sulfites, uses is mentioned: [Pg.560]    [Pg.705]    [Pg.758]    [Pg.825]    [Pg.979]    [Pg.1066]    [Pg.477]    [Pg.161]    [Pg.297]    [Pg.125]    [Pg.560]    [Pg.705]    [Pg.758]    [Pg.38]    [Pg.86]    [Pg.301]    [Pg.512]    [Pg.332]    [Pg.55]    [Pg.151]    [Pg.120]    [Pg.121]   
See also in sourсe #XX -- [ Pg.457 ]



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