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Sodium acetate trihydrate

Name: Sodium acetate trihydrate
Brand: MM

for analysis EMSURE^® ACS,ISO,Reag. Ph Eur

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

Beilstein:

3732037

MDL number:

MFCD00071557

UNSPSC Code:

12352107

EC Index Number:

204-823-8

NACRES:

NA.21

grade

ACS reagent

Quality Level

300

Agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE^®

Assay

99.0-101.0% (perchloric acid titration)
99.0-101.0% dry basis (perchloric acid titration)

form

solid

autoignition temp.

1112 °F
607 °C

potency

3530 mg/kg LD₅₀, oral (Rat)
>10000 mg/kg LD₅₀, skin (Rabbit)

impurities

≤0.005% Insoluble matter
≤0.005% Reducing substances

loss

39.0-40.5% loss on drying, 130 °C

pH

7.5-9.2 (20 °C, 50 g/L in H₂O)

mp

58 °C

transition temp

flash point >250 °C (anhydrous substance)

solubility

613 g/L

density

1.42 g/cm³ at 20 °C

bulk density

900 kg/m³

anion traces

chloride (Cl^-): ≤0.0005%
phosphate (PO₄^3-): ≤0.0002%
sulfate (SO₄^2-): ≤0.002%

cation traces

Al: ≤0.0005%
As: ≤0.0002%
Ca: ≤0.001%
Ca: ≤0.005%
Cu: ≤0.0003%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
Mg: ≤0.005%
N: ≤0.001%
Pb: ≤0.0005%
heavy metals (as Pb): ≤0.0005%

UV absorption

λ: 254 nm A_max: ≤0.02
λ: 280 nm A_max: ≤0.01
λ: 350 nm A_max: ≤0.01

storage temp.

2-30°C

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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Related Categories

Salts

Application

Direct Affinity Ligand Immobilization onto Bare Iron Oxide Nanoparticles Enables Efficient Magnetic Separation of Antibodies: Highlights the role of sodium acetate trihydrate in bioengineering, particularly in the enhancement of magnetic nanoparticle performance for bioseparation applications (Zimmermann I, Berensmeier S, 2024).

Physicochemical and antioxidant properties of pectin fractions extracted from lemon (Citrus Eureka) peels: Details the use of sodium acetate trihydrate in the extraction and analysis of bioactive compounds, supporting its critical role in food science and nutraceutical applications (Su Z, Li G, 2024).

Other Notes

Enzyme substrate for acetate kinase (EC 2.7.2.1)

Linkage

Replaces: SX0255; SX0255-1; SX0255-3; SX0255-20

Analysis Note

Assay (perchloric acid titration): 99.0 - 101.0 %
Assay (perchloric acid titration, calculated on dried substance): 99.0 - 101.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water): 7.5 - 9.0
Chloride (Cl): ≤ 0.0005 %
Phosphate (PO₄): ≤ 0.0002 %
Sulfate (SO₄): ≤ 0.002 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
As (Arsenic): ≤ 0.0002 %
Ca (Calcium): ≤ 0.001 %
Cu (Copper): ≤ 0.0003 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.005 %
Mg (Magnesium): ≤ 0.0005 %
Pb (Lead): ≤ 0.0005 %
Calcium and Magnesium (as Ca): ≤ 0.005 %
Substances reducing permanganate: passes test
Reducing substances: ≤ 0.005 %
Loss on drying (130 °C): 39.0 - 40.5 %
UV absorption (254 nm; 1 mol/l; 1 cm; water): ≤ 0.02
UV absorption (280 nm; 1 mol/l; 1 cm; water): ≤ 0.01
UV absorption (350 nm; 1 mol/l; 1 cm; water): ≤ 0.01
Corresponds to ACS,ISO,Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)