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CAS No 870-72-4 , Sodium formaldehyde bisulfite

  • Name: Sodium formaldehyde bisulfite
  • Synonyms: Hydroxymethanesulfonic acid monosodium salt; PN;Sodium formaldehyde bisulfite; Hydroxymethanesulfonic Acid Monosodium Salt;Sodium hydroxymethanesulphonate; sodium hydroxymethanesulphonate;
  • CAS Registry Number:
  • Melting Point: 200 ºC
  • Flash Point: 184 ºC
  • Water Solubility: 800 G/L (20 ºC)
  • Safety Statements: Moderately toxic by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of SOx and Na2O. See also FORMALDEHYDE and SULFITES.
  • Flash Point: 184 ºC
  • EINECS: 212-800-9
  • Molecular Weight: 134.08
  • InChI: InChI=1/CH4O4S.Na/c2-1-6(3,4)5;/h2H,1H2,(H,3,4,5);/q;+1/p-1
  • Risk Statements: S24/25
  • Molecular Formula: CH3NaO4S
  • Molecular Structure:CAS No:870-72-4 Sodium formaldehyde bisulfite

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References of Sodium formaldehyde bisulfite
Title: Formaldehyde Sodium Bisulfite
CAS Registry Number: 870-72-4
CAS Name: Hydroxymethanesulfonic acid monosodium salt
Synonyms: sodium formaldehydebisulfite; methylolsulfonic acid sodium salt
Molecular Formula: CH3NaO4S
Molecular Weight: 134.09
Percent Composition: C 8.96%, H 2.26%, Na 17.15%, O 47.73%, S 23.91%
Line Formula: HOCH2SO3Na
Literature References: Prepn: Skrabal, Skrabal, Monatsh. Chem. 69, 17 (1936); Chhabria et al., DE 1173059 (1964 to Schill & Seilacher). Structure: Lauer, Langkammerer, J. Am. Chem. Soc. 57, 2360 (1935); Caughlan, Tartar, ibid. 63, 1266 (1941).
 
Derivative Type: Monohydrate
Properties: Needles from water. pK (25°): 6.92.
pKa: pK (25°): 6.92
 
Use: Fixing agent for keratin-containing fibers. Flotation of lead-zinc ores. Protecting color pictures exposed to high humidities against fading and staining.