32318

Acetato de sodio trihydrate

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

• Sinónimos: Ácido acético sodium salt trihydrate
• Fórmula lineal: CH₃COONa · 3H₂O
• Número de CAS: 6131-90-4
• Peso molecular: 136.08
• Beilstein: 3732037
• Número CE: 204-823-8
• Número MDL: MFCD00071557
• Código UNSPSC: 12352300
• ID de la sustancia en PubChem: 329754136
• NACRES: NA.21

Propiedades

• grado: ACS reagent; puriss. p.a.
• Nivel de calidad: 200
• Agency: USP/NF; reag. ISO; reag. Ph. Eur.
• Ensayo: ≥99.5%
• Formulario: crystalline
• temp. de autoignición: 1112 °F
• impurezas: ≤0.0005% heavy metals (as Pb); ≤0.005% KMnO₄ red. matter (as HCOOH); ≤0.005% in water soluble matter
• pérdida: 39.0-40.5% loss on drying, 130 °C
• pH: 7.5-9.0 (20 °C, 5%)
• trazas de anión: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤5 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg
• trazas de catión: 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
• idoneidad: in accordance for appearance of solution
• cadena 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
• Clave InChI: AYRVGWHSXIMRAB-UHFFFAOYSA-M

Descripción

Descripción general

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.

Aplicación

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

Otras notas

Sustrato enzimático para la acetato cinasa (EC 2.7.2.1)

Información de seguridad

• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable