Sigma-Aldrich Potassium Hydrogen Carbona

Grade

ACS reagent

Quality Level

300

Product Line

EMSURE^®

Assay

≥99.5% (acidimetric)
99.7-100.5% dry basis (acidimetric)

Form

powder or crystals

Potency

>2000 mg/kg LD₅₀, oral (Rat)

Impurities

≤0.01% Insoluble matter

pH

8.4-8.6 (20 °C, 99 g/L in H₂O)

Solubility

362 g/L

Density

2.17 g/cm³at 20 °C

Related Categories

Salts

Application

• Purines, pyrimidines, and imidazoles. XXXVI. Carboxylation of some 5-aminoimidazoles and related compounds, including nucleosides and nucleotides, with potassium hydrogen carbonate in aqueous solution.: This study explored the carboxylation reactions of 5-aminoimidazoles and related compounds using potassium hydrogen carbonate in aqueous solutions, highlighting its application in synthetic organic chemistry (Cusack NJ et Al., 1971).

Linkage

Replaces: PX1345; PX1345-1; PX1345-30

Analysis Note

Assay (acidimetric; dried substance): 99.7 - 100.5 %
Assay (acidimetric): ≥ 99.5 %
Insoluble matter: ≤ 0.01 %
Chloride (Cl): ≤ 0.001 %
Phosphate (PO₄): ≤ 0.0005 %
Phosphate and Silicate (as SiO₂): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.001 %
Total sulfur (as sulfate): ≤ 0.003 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
Ca (Calcium): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
mg (Magnesium): ≤ 0.001 %
Na (Sodium): ≤ 0.02 %
NH₄ (Ammonium): ≤ 0.0005 %
Corresponds to ACSEMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany