25022

Sodium acetate trihydrate

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E262, 99.0-101.0% (calc. to the dried substance), ≤0.00002% Al

• Synonim(y): Acetic acid sodium salt trihydrate
• Wzór liniowy: CH₃COONa · 3H₂O
• Numer CAS: 6131-90-4
• Masa cząsteczkowa: 136.08
• Beilstein: 3732037
• Numer WE: 204-823-8
• Numer MDL: MFCD00071557
• Kod UNSPSC: 12352300
• Identyfikator substancji w PubChem: 329752766
• NACRES: NA.21

Właściwości

• klasa czystości: puriss.
• Poziom jakości: 200
• Próba: 99.0-101.0% (calc. to the dried substance)
• Postać: powder or crystals
• temp. samozapłonu: 1112 °F
• jakość: meets analytical specification of Ph. Eur., BP, USP, FCC, E262
• zanieczyszczenia: 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)
• strata: 39.0-40.5% loss on drying, 130 °C
• pH: 7.5-9.0 (20 °C, 5%)
• ślady anionów: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• ślady kationów: 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
• przydatność: complies for appearance of solution
• ciąg SMILES: O.O.O.[Na+].CC([O-])=O
• InChI: 1S/C2H4O2.Na.3H2O/c1-2(3)4;;;;/h1H3,(H,3,4);;3*1H2/q;+1;;;/p-1
• Klucz InChI: AYRVGWHSXIMRAB-UHFFFAOYSA-M

Opis

Opis ogólny

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.

Zastosowanie

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

Inne uwagi

Enzyme substrate for acetate kinase (EC 2.7.2.1)

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Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable