57618

Potassium phosphate monobasic

suitable for HPLC, LiChropur^™, 99.5-101.0% (T)

• Synonym(s): Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate
• Linear Formula: KH₂PO₄
• CAS Number: 7778-77-0
• Molecular Weight: 136.09
• EC Number: 231-913-4
• MDL number: MFCD00011401

Properties

• assay: 99.5-101.0% (T)
• form: solid
• quality: LiChropur^™
• technique(s): HPLC: suitable
• pH: 4.1-4.5
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• mp: 252.6 °C (lit.)
• solubility: H₂O: 10%, clear, colorless
• density: 2.338 g/mL at 25 °C (lit.)
• λ: 10 % in H₂O
• UV absorption: λ: 210 nm A_max: ≤0.1; λ: 220 nm A_max: ≤0.06; λ: 230 nm A_max: ≤0.04; λ: 300 nm A_max: ≤0.02; λ: 500 nm A_max: ≤0.02
• 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

Packaging

50, 250 g

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1