1.06267

Sodium acetate trihydrate

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

• Synonym(s): Acetic acid sodium salt trihydrate
• Linear Formula: CH₃COONa · 3H₂O
• CAS Number: 6131-90-4
• Molecular Weight: 136.08
• Beilstein: 3732037
• MDL number: MFCD00071557
• EC Index Number: 204-823-8

Properties

• Quality Level: 300
• 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 (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

Description

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

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable