Merck
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1.06267

Supelco

Sodium acetate trihydrate

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

Synonym(s):
Acetic acid sodium salt trihydrate
Linear Formula:
CH3COONa · 3H2O
CAS Number:
Molecular Weight:
136.08
Beilstein:
3732037
MDL number:
EC Index Number:
204-823-8

Quality Level

grade

ACS reagent

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 (PO43-): ≤0.0002%
sulfate (SO42-): ≤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 Amax: ≤0.02
λ: 280 nm Amax: ≤0.01
λ: 350 nm Amax: ≤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

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)

Not applicable

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