Sodium acetate trihydrate
SIGALD/25022 - puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E262, 99.0-101.0% (calc. to the dried substance), ≤0.00002% Al
Synonym: Acetic acid sodium salt trihydrate
CAS Number: 6131-90-4
Empirical Formula (Hill Notation): C2H3NaO2 · 3H2O
Molecular Weight: 136.08
EC Number: 204-823-8
MDL Number: MFCD00071557
Linear Formula: CH3COONa · 3H2O
Product Type: Chemical
| anion traces | chloride (Cl-): ≤50 mg/kg |
| sulfate (SO42-): ≤50 mg/kg | |
| assay | 99.0-101.0% (calc. to the dried substance) |
| autoignition temp. | 1112 °F |
| 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 | |
| form | powder or crystals |
| grade | puriss. |
| 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) | |
| InChI | 1S/C2H4O2.Na.3H2O/c1-2(3) |
| InChI key | AYRVGWHSXIMRAB-UHFFFAOYSA |
| loss | 39.0-40.5% loss on drying, 130 °C |
| pH | 7.5-9.0 (20 °C, 5%) |
| quality | meets analytical specification of Ph. Eur., BP, USP, FCC, E262 |
| Quality Level | 200  |
| SMILES string | O.O.O.[Na+].CC([O-])=O |
| suitability | complies for appearance of solution |
| 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. |
| Other Notes: | Enzyme substrate for acetate kinase (EC 2.7.2.1) |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.0-101.0% (calc. to the dried substance) |
| UNSPSC | 12352300 |