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S7670

Sigma-Aldrich

Sodium acetate trihydrate

BioXtra, ≥99.0%

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Synonym(s):
Acetic acid sodium salt trihydrate
Linear Formula:
CH3COONa · 3H2O
CAS Number:
Molecular Weight:
136.08
Beilstein:
3732037
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

product line

BioXtra

Quality Level

Assay

≥99.0%

form

powder

autoignition temp.

1112 °F

impurities

≤0.0005% Phosphorus (P)
≤0.1% Insoluble matter

pH

8.5-10 (25 °C, 408 g/L)

solubility

H2O: 1 M, clear, colorless

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.002%

cation traces

Al: ≤0.0005%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Pb: ≤0.001%
Zn: ≤0.0005%

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

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1 of 4

This Item
71188S1304236500
Sodium acetate trihydrate BioXtra, ≥99.0%

Sigma-Aldrich

S7670

Sodium acetate trihydrate

Premium Grade
Sodium acetate trihydrate BioUltra, ≥99.5% (NT)

Sigma-Aldrich

71188

Sodium acetate trihydrate

Premium Grade
assay

≥99.0%

assay

≥99.5% (NT)

assay

99.0-101.0% dry basis (HClO4 , titration)

assay

≥99%

form

powder

form

powder or crystals

form

crystalline

form

crystals or chunks

impurities

≤0.0005% Phosphorus (P), ≤0.1% Insoluble matter

impurities

insoluble matter, passes filter test, ≤0.005% KMnO4-reducing matter (as HCOOH)

impurities

-

impurities

MnO4- reducers, passes test, ≤0.005% insolubles

pH

8.5-10 (25 °C, 408 g/L)

pH

8.5-10.0 (25 °C, 3 M in H2O)

pH

7.5-9.2

pH

7.5-9.2 (25 °C, 5%)

solubility

H2O: 1 M, clear, colorless

solubility

H2O: 3 M at 20 °C, clear, colorless

solubility

water: soluble 408 g/L at 20 °C

solubility

-

Application

Sodium acetate trihydrate has been used:
  • as a component of citrate-acetate buffer for hydroxyproline assay
  • to prepare buffered salt solutions for ultrafiltration experiments
  • to prepare acetate buffer solution for the electrochemical synthesis of indium tin oxide/gold nanoparticles/nickel oxide/poly(Pyrrole-N-propionic acid) (ITO/GNPs/NiO/poly(PPA)) electrode

Biochem/physiol Actions

Sodium acetate trihydrate (SAT), an inorganic salt hydrate has been the focus of numerous scientific studies on its potential as a heat energy storage phase transition material (PCM).

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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<BIG>Johansen JB, et al.</BIG>
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