502. Ammonium Bisulfite

Nomenclature

CAS number: 10192-30-0

Sulfurous acid ammonium salt (1:1); ammonium acid sulfite; ammonium hydrogen sulfite.

H₅NO₃S; mol wt 99.11.

H 5.08%, N 14.13%, O 48.43%, S 32.35%.

NH₄HSO₃.

Prepn: Gmelins, Ammonium (8th ed.) 23, 259-260 (1936).

Crystals. Soly in water (g/100 ml H₂O): 267 (10°); 620 (60°). Keep well closed.

Preservative.