乙酸钠,三水
品牌 | 厂商性质 | 产地 | 货期 |
---|---|---|---|
Sigma-Aldrich | 一般经销商 | 美国 | 现货 |
货号 | 规格 | CAS号 | 包装 | 操作 |
---|---|---|---|---|
25022-1kg | 瓶 | 6131-90-4 | 1kg | 询价 |
71188-250G | BioUltra, ≥99.5% (NT) | 6131-90-4 | 250g | 询价 |
产品描述
Other Notes
乙酸激酶的底物 (EC 2.7.2.1)
Application
Sodium acetate trihydrate may be used in the fabrication of silicone/sodium acetate trihydrate hybrid, a water-responsive shape memory hybrid.[4]
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.[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]
性质
Related Categories | Chemical Synthesis, Essential Chemicals, Inorganic Salts, Research Essentials, Salts, |
InChI Key | AYRVGWHSXIMRAB-UHFFFAOYSA-M |
grade | puriss. |
assay | 99.0-101.0% (calc. to the dried substance) |
autoignition temp. | 1112 °F |
quality | meets analytical specification of Ph. Eur., BP, USP, FCC, E262 |
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) | |
loss | 39.0-40.5% loss on drying, 130 °C |
pH | 7.5-9.0 (20 °C, 5%) |
anion traces | chloride (Cl-): ≤50 mg/kg |
sulfate (SO42-): ≤50 mg/kg | |
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 | |
suitability | complies for appearance of solution |
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