乙酸钠 三水合物

CH₃COONa · 3H₂O

136.08

3732037

204-823-8

MFCD00071557

329752766

NA.21

meets analytical specification of Ph. Eur., BP, USP, FCC, E262

Sodium acetate trihydrate can be obtained from the crystallization of sodium acetate in water. On heating at 75℃, it melts, while on heating above 120℃ 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.

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

乙酸激酶的底物 (EC 2.7.2.1)

200

puriss.

99.0-101.0% (calc. to the dried substance)

powder or crystals

1112 °F

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)

39.0-40.5% loss on drying, 130 ℃

7.5-9.0 (20 ℃, 5%)

chloride (Cl^-): ≤50 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

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

complies for appearance of solution

O.O.O.[Na+].CC([O-])=O

1S/C2H4O2.Na.3H2O/c1-2(3)4;;;;/h1H3,(H,3,4);;3*1H2/q;+1;;;/p-1

AYRVGWHSXIMRAB-UHFFFAOYSA-M

11 - Combustible Solids

WGK 1