32318-M
乙酸钠 三水合物
puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%
别名:
醋酸 钠盐 三水合物
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关于此项目
线性分子式:
CH3COONa · 3H2O
化学文摘社编号:
分子量:
136.08
UNSPSC Code:
12352300
NACRES:
NA.21
PubChem Substance ID:
EC Number:
204-823-8
Beilstein/REAXYS Number:
3732037
MDL number:
Quality Segment
agency
USP/NF, reag. ISO, reag. Ph. Eur.
grade
ACS reagent, puriss. p.a.
assay
≥99.5%
form
crystalline
autoignition temp.
1112 °F
impurities
≤0.0005% heavy metals (as Pb), ≤0.005% KMnO4 red. matter (as HCOOH), ≤0.005% in water soluble matter
loss
39.0-40.5% loss on drying, 130 °C
pH
7.5-9.0 (20 °C, 5%)
anion traces
chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤5 mg/kg, sulfate (SO42-): ≤20 mg/kg
cation traces
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
suitability
in accordance 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
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 its crystal structure has been investigated by photographic methods. Unit cell parameters were evaluated.
Application
Sodium acetate trihydrate may be used in the fabrication of silicone/sodium acetate trihydrate hybrid, a water-responsive shape memory hybrid.
Other Notes
乙酸激酶的酶底物（酶代码 EC 2.7.2.1）
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存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable