Potassium Phosphate Monobasic 500g

Potassium phosphate monobasic has been used in the preparation of phosphate buffer and phosphate buffered saline (PBS). It has also been used in the preparation of PEG1000 (poly ethylene glycol)/potassium phosphate aqueous two-phase systems.
An affidavit is required for the purpose of dangerous chemicals, clearly stating the intended use of the chemical.
• grade: ACS reagent
• assay: ≥99.0%
• impurities: ≤0.01% Insoluble matter
• loss: ≤0.2% loss on drying, 105°C
• pH: 4.1-4.5 (25 °C, 5%)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• mp: 252.6 °C (lit.)
• density: 2.338 g/mL at 25 °C (lit.)
• anion_traces: {‘chloride (Cl–)’: ‘≤0.001%’, ‘sulfate (SO42-)’: ‘≤0.003%’}
• cation_traces: {‘Fe’: ‘≤0.002%’, ‘Na’: ‘≤0.005%’, ‘heavy_metals’: ‘≤0.001% (by ICP-OES)’}
• 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

• ACS reagent grade
• ≥99.0% assay
• ≤0.01% Insoluble matter
• ≤0.2% loss on drying, 105°C
• pH 4.1-4.5 (25 °C, 5%)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• mp: 252.6 °C (lit.)
• density: 2.338 g/mL at 25 °C (lit.)