Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

25022

Sigma-Aldrich

Sodium acetate trihydrate

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E262, 99.0-101.0% (calc. to the dried substance), ≤0.00002% Al

Synonym(s):

Acetic acid sodium salt trihydrate

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
CH3COONa · 3H2O
CAS Number:
Molecular Weight:
136.08
Beilstein:
3732037
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.21

grade

puriss.

Assay

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

form

powder or crystals

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

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

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 their 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

Enzyme substrate for acetate kinase (EC 2.7.2.1)

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
The crystal structure of sodium acetate trihydrate.
Cameron TS, et al.
Acta Crystallographica Section B, Structural Science, 32(1), 87-90 (1976)
Eagleson M.
Concise Encyclopedia Chemistry, 995-995 (1994)
Andrew D Shaw et al.
Annals of surgery, 255(5), 821-829 (2012-04-04)
To assess the association of 0.9% saline use versus a calcium-free physiologically balanced crystalloid solution with major morbidity and clinical resource use after abdominal surgery. 0.9% saline, which results in a hyperchloremic acidosis after infusion, is frequently used to replace

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service