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32318

Sodium acetate trihydrate

Name: Sodium acetate trihydrate
Brand: SIGALD

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

Synonym(s):

Acetic acid sodium salt trihydrate

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About This Item

Linear Formula:

CH₃COONa · 3H₂O

CAS Number:

6131-90-4

Molecular Weight:

136.08

UNSPSC Code:

12352300

NACRES:

NA.21

PubChem Substance ID:

329754136

EC Number:

204-823-8

Beilstein/REAXYS Number:

3732037

MDL number:

MFCD00071557

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Properties

Quality Level

200

agency

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

grade

ACS reagent, puriss. p.a.

assay

≥99.5%

form

crystalline

autoignition temp.

1112 °F

greener alternative product characteristics

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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 (PO₄^3-): ≤5 mg/kg, sulfate (SO₄^2-): ≤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

greener alternative category

Enabling

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

Description

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.

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Application

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

Other Notes

Enzyme substrate for acetate kinase (EC 2.7.2.1)

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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Methyl radical in irradiated single crystals of sodium acetate trihydrate.

Rogers MT and Kispert LD.

J. Chem. Phys. , 46(1), 221-223 (1967)

Water-responsive shape memory hybrid: Design concept and demonstration.

Fan K, et al.

Express Polymer Letters, 5(5), 409-416 (2011)

Global Trade Item Number

SKU	GTIN
32318-2.5KG-R	04061835562725
32318-1KG-R	04061826708392
32318-500G-R	04061826708408