Merck
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52074

Supelco

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:
Molecular Weight:
119.98
MDL number:

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 Amax: ≤0.1
λ: 260 nm Amax: ≤0.06
λ: 280 nm Amax: ≤0.04
λ: 320 nm Amax: ≤0.02
λ: 500 nm Amax: ≤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

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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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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