52074

Sodium phosphate monobasic

suitable for HPLC, 99.0-101.0% (T)

• Synonym(s): Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate
• Linear Formula: NaH₂PO₄
• CAS Number: 7558-80-7
• Molecular Weight: 119.98
• MDL number: MFCD00003527
• UNSPSC Code: 41116105
• NACRES: NB.21

Properties

• assay: 99.0-101.0% (T)
• form: powder or crystals
• technique(s): HPLC: suitable
• pH: 4.0-4.5 (20 °C, 10% in H₂O)
• solubility: H₂O: 0.1 g/mL at 25 °C, clear, colorless
• λ: 10 % in H₂O
• UV absorption: λ: 210 nm A_max: ≤0.1; λ: 260 nm A_max: ≤0.06; λ: 280 nm A_max: ≤0.04; λ: 320 nm A_max: ≤0.02; λ: 500 nm A_max: ≤0.02
• SMILES string: [Na+].OP(O)([O-])=O
• InChI: 1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
• InChI key: AJPJDKMHJJGVTQ-UHFFFAOYSA-M

Description

Application

Sodium phosphate monobasic may be used as a mobile phase in:

• High-performance liquid chromatography (HPLC) determination of adenosine in human synovial fluid.
• Analysis of neuroendocrine tumor markers by HPLC-electrochemical detection.
• Analysis of benzalkonium chloride and its homologs using HPLC/HPCE.

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable