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CAS No 7681-57-4 , Sodium metabisulfite

  • Name: Sodium metabisulfite
  • Synonyms: Natriumbisulfit;Sodium metabisulfite; Campden Tablets;Sodium disulfite; Fertisilo; Sodium pyrosulfite; Natrium pyrosulfit; Natrii disulfis; Disodium disulfite;
  • CAS Registry Number:
  • Transport: UN 2693
  • Melting Point: 150 ºC
  • Density: 1.48
  • Water Solubility: 540 G/L (20 ºC)
  • Safety Statements: R22;R31;R41
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 231-673-0
  • Molecular Weight: 190.106539
  • InchiKey: HRZFUMHJMZEROT-UHFFFAOYSA-L
  • InChI: InChI=1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
  • Risk Statements: S26;S39;S46
  • Molecular Formula: Na2O5S2
  • Molecular Structure:CAS No:7681-57-4 Sodium metabisulfite

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References of Sodium metabisulfite
Title: Sodium Metabisulfite
CAS Registry Number: 7681-57-4
CAS Name: Sodium pyrosulfite
Molecular Formula: Na2O5S2
Molecular Weight: 190.11
Percent Composition: Na 24.19%, O 42.08%, S 33.73%
Line Formula: Na2S2O5
Literature References: Crystallizes from cold water with 7H2O.
Properties: White crystals or powder; odor of SO2. Freely sol in water, glycerol; slightly sol in alcohol. The aq soln is acid.
CAUTION: Potential symptoms of overexposure are irritation of eyes, skin and mucous membranes. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 284.
Use: Pharmaceutic aid (antioxidant).