1.04873

Potassium phosphate monobasic

for analysis EMSURE^® ISO

• Synonym(s): Potassium phosphate monobasic, Potassium dihydrogen phosphate, mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic, Monopotassium phosphate, prim.-Potassium phosphate
• Linear Formula: KH₂PO₄
• CAS Number: 7778-77-0
• Molecular Weight: 136.09
• MDL number: MFCD00011401
• UNSPSC Code: 12352302
• EC Index Number: 231-913-4
• NACRES: NA.21

Properties

• agency: reag. ISO; suitable for SM 5210
• Quality Level: 300
• product line: EMSURE^®
• assay: ≥99.5% dry basis (alkalimetric); 99.5-100.5% (alkalimetric)
• form: solid
• potency: >4640 mg/kg LD₅₀, skin (Rabbit)
• technique(s): UV/Vis spectroscopy: suitable
• loss: ≤0.2% loss on drying, 110 °C; ≤0.2% loss on drying, 130 °C
• pH: 4.2-4.6 (20 °C, 20 g/L in H₂O)
• mp: 252.6 °C (lit.)
• solubility: 208 g/L
• density: 2.338 g/mL at 25 °C (lit.)
• bulk density: 1200 kg/m³
• anion traces: chloride (Cl^-): ≤0.0005%; sulfate (SO₄^2-): ≤0.003%
• cation traces: As: ≤0.0002%; Cu: ≤0.0003%; Fe: ≤0.0010%; N: ≤0.001%; Na: ≤0.02%; Pb: ≤0.001%; heavy metals (as Pb): ≤0.0010%
• storage temp.: 2-30°C
• SMILES string: [K+].OP(O)([O-])=O
• InChI: 1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
• InChI key: GNSKLFRGEWLPPA-UHFFFAOYSA-M

Description

Application

• β-lactoglobulin stabilized nanemulsions--Formulation and process factors affecting droplet size and nanoemulsion stability.: This research explores the stabilization mechanisms of β-lactoglobulin in nanemulsions, with implications for pharmaceutical and food sciences, potentially utilizing substances like potassium phosphate monobasic for stability and pH control (Ali et al., 2016).


• Reverse phase liquid chromatographic determination of sulfathiazole residues in honey.: Discusses a method for detecting sulfathiazole in honey using reverse-phase liquid chromatography, highlighting the importance of analytical techniques that could involve reagents like potassium phosphate monobasic for sample preparation and analysis (Barry and MacEachern, 1983).

Analysis Note

Assay (alkalimetric, calculated on dried substance): 99.5 - 100.5 %
Assay (alkalimetric; dried substance): ≥ 99.5 %
pH-value (5 %; water): 4.2 - 4.5
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.003 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0010 %
As (Arsenic): ≤ 0.0002 %
Cu (Copper): ≤ 0.0003 %
Fe (Iron): ≤ 0.0010 %
Na (Sodium): ≤ 0.02 %
Pb (Lead): ≤ 0.001 %
Reducing substances: passes test
Loss on drying (110 °C): ≤ 0.2 %
Loss on drying (130 °C): ≤ 0.2 %
Correspons to ISO

Legal Information

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

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable