Sodium Formaldehydesulfoxylate
Title: Sodium Formaldehydesulfoxylate
CAS Registry Number: 149-44-0
CAS Name: Hydroxymethanesulfinic acid sodium salt
Additional Names: formaldehyde sodium sulfoxylate; formaldehydesulfoxylic acid sodium salt; sodium hydroxymethanesulfinate; sodium methanalsulfoxylate
Trademarks: Aldanil; Rongalite; Rongalite C
Molecular Formula: CH3NaO3S
Molecular Weight: 118.09
Percent Composition: C 10.17%, H 2.56%, Na 19.47%, O 40.65%, S 27.15%
Line Formula: Na[HOCH2SO2]
Literature References: Prepn: Heyl, Greer, Am. J. Pharm. 94, 80 (1922); Binns, US 2013125 (1935 to Virginia Smelting); Postnikov, Kunin, J. Appl. Chem. USSR 13, 185 (1940). Structure of dihydrate: Truter, J. Chem. Soc. 1955, 3064; 1962, 3400. Of limited value in treatment of mercuric chloride poisoning: Modell et al., J. Pharmacol. Exp. Ther. 61, 66 (1937).
 
Derivative Type: Dihydrate
Properties: Crystals, mp 63-64°, dec at higher temp. Odorless when freshly prepd, but quickly develops a characteristic (garlic) odor. Freely sol in water; practically insol in abs alcohol, ether, benzene. Readily dec by dil acids. Aq soln is practically neutral. Keep well closed in a cool place. LD s.c. in mice, 4.0 g/kg: Rosenthal, Public Health Rep. 49, 908 (1934).
Melting point: mp 63-64°
Toxicity data: LD s.c. in mice, 4.0 g/kg: Rosenthal, Public Health Rep. 49, 908 (1934)
 
Use: In vat color printing pastes: Borstelmann, Fordemwalt, US 2597281 (1952 to Am. Cyanamid). In polymerization of ethylenic compds: GB 816252; GB 852593 (1959 to Hercules Powder; 1960 to Air Reduction). In manuf of arsphenamines: Krumwiede, J. Am. Pharm. Assoc. 8, 795 (1919); Heyl, Miller, ibid. 11, 432 (1922).
Therap-Cat: Treatment of mercury poisoning.

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