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Merck
CN

32318-M

Sigma-Aldrich

乙酸钠 三水合物

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

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别名:
醋酸 钠盐 三水合物
线性分子式:
CH3COONa · 3H2O
CAS号:
分子量:
136.08
Beilstein:
3732037
EC 号:
MDL编号:
UNSPSC代码:
12352300
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent
puriss. p.a.

质量水平

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

检测方案

≥99.5%

形式

crystalline

自燃温度

1112 °F

杂质

≤0.0005% heavy metals (as Pb)
≤0.005% KMnO4 red. matter (as HCOOH)
≤0.005% in water soluble matter

缺失

39.0-40.5% loss on drying, 130 °C

pH值(酸碱度)

7.5-9.0 (20 °C, 5%)

痕量阴离子

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤20 mg/kg

痕量阳离子

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

适用性

in accordance for appearance of solution

SMILES字符串

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

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一般描述

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.

应用

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

其他说明

乙酸激酶的酶底物(酶代码 EC 2.7.2.1)

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

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The crystal structure of sodium acetate trihydrate.
Cameron TS, et al.
Acta Crystallographica Section B, Structural Science, 32(1), 87-90 (1976)
Water-responsive shape memory hybrid: Design concept and demonstration.
Fan K, et al.
Express Polymer Letters, 5(5), 409-416 (2011)
Methyl radical in irradiated single crystals of sodium acetate trihydrate.
Rogers MT and Kispert LD.
J. Chem. Phys. , 46(1), 221-223 (1967)
Eagleson M.
Concise Encyclopedia Chemistry, 995-995 (1994)

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