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52074

Sodium phosphate monobasic

suitable for HPLC, 99.0-101.0% (T)

Synonym(s):

Monosodium dihydrogen orthophosphate, Monosodium phosphate, Sodium dihydrogen phosphate

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About This Item

Linear Formula:
NaH2PO4
CAS Number:
7558-80-7
Molecular Weight:
119.98
UNSPSC Code:
41116105
NACRES:
NB.21
MDL number:
MFCD00003527
eCl@ss:
38070208
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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

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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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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