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Description

Other Notes

Enzyme substrate for acetate kinase (EC 2.7.2.1)

Application

Sodium acetate trihydrate may be used in the fabrication of silicone/sodium acetate trihydrate hybrid, a water-responsive shape memory hybrid.

General description

Sodium acetate trihydrate can be obtained from the crystallization of sodium acetate in water. On heating at 75°C, it melts, while on heating above 120°C it loses water of crystallization and gets converted into anhydrous form. The hyperfine proton and 13C splittings have been evaluated by recording ESR spectra of its irradiated single crystals. ESR studies suggested the existence of trapped methyl radicals.Its crystals are monoclinic and their structure has been investigated by photographic methods. Unit cell parameters were evaluated.

Category:

Description

  • CAS Number 6131-90-4
  • Linear Formula CH3COONa · 3H2O
  • Molecular Weight 136.08
  • Product code. CB09131

  • Properties

    InChI Key AYRVGWHSXIMRAB-UHFFFAOYSA-M
    grade puriss.
    assay 99.0-101.0% (calc. to the dried substance)
    autoignition temp. 1112 °F
    quality meets analytical specification of Ph. Eur., BP, USP, FCC, E262
    impurities organic volatile impurities, complies (GC)
    reducing matter, complies
    residual solvents, in accordance
    ≤0.00002% Al
    ≤0.001% heavy metals (as Pb)
    ≤0.002% KMnO4 red. matter (as O)
    ≤0.1% KMnO4 red. matter (as HCOOH)
    loss 39.0-40.5% loss on drying, 130 °C
    pH 7.5-9.0 (20 °C, 5%)
    anion traces chloride (Cl–): ≤50 mg/kg
    sulfate (SO42-): ≤50 mg/kg
    cation traces Al: ≤0.2 mg/kg
    As: ≤2 mg/kg
    Ca: ≤20 mg/kg
    Cu: ≤10 mg/kg
    Fe: ≤10 mg/kg
    Hg: ≤1 mg/kg
    K: ≤200 mg/kg
    Mg: ≤20 mg/kg
    Pb: ≤2 mg/kg
    Zn: ≤10 mg/kg
    suitability complies for appearance of solution

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