71193

Sodium acetate trihydrate

purum p.a., ≥99.0% (NT)

• Synonym(s): Acetic acid sodium salt trihydrate
• Linear Formula: CH₃COONa · 3H₂O
• CAS Number: 6131-90-4
• Molecular Weight: 136.08
• Beilstein/REAXYS Number: 3732037
• EC Number: 204-823-8
• MDL number: MFCD00071557
• UNSPSC Code: 12352300
• PubChem Substance ID: 329763098

Properties

• grade: purum p.a.
• assay: ≥99.0% (NT)
• autoignition temp.: 1112 °F
• pH: 7.5-9.0 (25 °C, 50 mg/mL in H₂O)
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Ca: ≤50 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤100 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• SMILES string: 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
• InChI key: AYRVGWHSXIMRAB-UHFFFAOYSA-M

Description

General description

Sodium acetate trihydrate can be obtained from the crystallization of sodium acetate in water. It loses water of crystallization on heating at 75°C, while on heating above 120°C, anhydrous sodium acetate is obtained. Its aqueous solutions are basic in nature. ESR spectra of its irradiated single crystals have been studied at 77°K. The hyperfine proton and ¹³C splittings indicated the presence of trapped methyl radicals. Its crystal structure has been examined.

application

Sodium acetate trihydrate may be used in the preparation of silicone/sodium acetate trihydrate hybrid.

Other Notes

Enzyme substrate for acetate kinase (EC 2.7.2.1)

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)