32318-M

Acetato de sódio

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

• Sinônimo(s): Ácido acético
• Fórmula linear: CH₃COONa · 3H₂O
• Número CAS: 6131-90-4
• Peso molecular: 136.08
• Beilstein: 3732037
• Número CE: 204-823-8
• Número MDL: MFCD00071557
• Código UNSPSC: 12352300
• ID de substância PubChem: 329754136
• NACRES: NA.21

Propriedades

• grau: ACS reagent; puriss. p.a.
• Nível de qualidade: 100
• Agency: USP/NF; reag. ISO; reag. Ph. Eur.
• Ensaio: ≥99.5%
• forma: crystalline
• temperatura de autoignição: 1112 °F
• Impurezas: ≤0.0005% heavy metals (as Pb); ≤0.005% KMnO₄ red. matter (as HCOOH); ≤0.005% in water soluble matter
• perda: 39.0-40.5% loss on drying, 130 °C
• pH: 7.5-9.0 (20 °C, 5%)
• traços de ânion: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤5 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg
• traços de cátion: Al: ≤0.2 mg/kg; As: ≤2 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Mg: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• adequação: in accordance for appearance of solution
• cadeia de caracteres 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
• chave InChI: AYRVGWHSXIMRAB-UHFFFAOYSA-M

Descrição

Descrição geral

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 its crystal structure has been investigated by photographic methods. Unit cell parameters were evaluated.

Aplicação

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

Outras notas

Substrato enzimático para acetato quinase (EC 2.7.2.1)

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable