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

• 동의어(들): Acetic acid sodium salt trihydrate
• Linear Formula: CH₃COONa · 3H₂O
• CAS Number: 6131-90-4
• Molecular Weight: 136.08
• Beilstein: 3732037
• EC Number: 204-823-8
• MDL number: MFCD00071557
• UNSPSC 코드: 12352300
• PubChem Substance ID: 329752766
• NACRES: NA.21

속성

• grade: puriss.
• 분석: 99.0-101.0% (calc. to the dried substance)
• 양식: powder or crystals
• autoignition temp.: 1112 °F
• 품질: meets analytical specification of Ph. Eur., BP, USP, FCC, E262
• 불순물: 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)
• 손실: 39.0-40.5% loss on drying, 130 °C
• pH: 7.5-9.0 (20 °C, 5%)
• 음이온 미량물: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 양이온 미량물: 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
• 적합성: complies for appearance of solution
• 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

설명

일반 설명

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.[1] 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.[2] Its crystals are monoclinic and their structure has been investigated by photographic methods. Unit cell parameters were evaluated.[3]

애플리케이션

Sodium acetate trihydrate may be used in the fabrication of silicone/sodium acetate trihydrate hybrid, a water-responsive shape memory hybrid.[4]

기타 정보

Enzyme substrate for acetate kinase (EC 2.7.2.1)

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable