Bisulfite de sodium

SYNS BISULFITE de SODIUM (FRENCH) HYDROGEN SULFITE SODIUM SODIUM ACID SULFITE SODIUM BISULFITE SODIUM BISULFITE (1 1) SODIUM BISULFITE, solid (DOT) SODIUM BISULFITE, solution (DOT) SODIUM HYDROGEN SULFITE SODIUM HYDROGEN SULFITE, soUd (DOT) SODIUM HYDROGEN SULFITE, solution pOT) SODIUM SULFHYDRATE SULFUROUS ACID, MONOSODIUM SALT... 

BISULFITE (7446-09-5) see sulfur dioxide. BISULFITE de SODIUM (French) or BISULFITO SODICO (Spanish) (7631-90-5) see sodium bisulfite. 

Aminomcthylation of sodium bisulfite (Fig. 189b), by means of primary or secondary amino groups belonging to the dye molecule, is also carried out to obtain fine dispersion of the coloring agent into the bath, which is readily accomplished by de-aminomethylation on heating (Fig. 90, Chap. II, and 507). 

Clays and bentonites are used as fillers in adhesives. Sodium bisulfite, hydrogen peroxide, sodium perborate serve as bleaches. Solvents are added to help wet water-repellent surfaces. Preservatives prevent microbial growth. De-foamers prevent foam during cooking. Colloid stabilizers such as soaps and sodium chloride are often added. 

Sodium formaldehyde sulfo.xylate and sodium formaldehyde bisulfite are said to be obtained in equimolar quantities when foimaIdeh3 de is added to sodium hydrosulfite in aqueous solution and may be separated by fractional cn stalliaation. I he so-called ziinc and sodium formaldehyde hydro-sulfites may be obtained in this waj". 

The formation of the fomialdehyde-bisulfite compound also serves as a basis for a procedure de -eloped by Ripper in which formaldehyde is de- - termined by reaction with a sodium bisulfite solution of known iodine value followed by titration of the uncombined bisulfite wuth decinormal iodine . 

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