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09709 Sigma-Aldrich

Ammonium phosphate monobasic

BioUltra, ≥99.5% (T)

Synonym: mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate



Related Categories Alphabetical, BioUltra Buffers, Biochemicals and Reagents, Biological Buffers, Molecular Biology,
product line   BioUltra
assay   ≥99.5% (T)
impurities   insoluble matter, passes filter test
pH   4.0-5.0 (25 °C, 0.1 M in H2O)
mp   190 °C (dec.)(lit.)
solubility   H2O: soluble0.1 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.5 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤50 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤20 mg/kg
  K: ≤50 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   0.1 M in H2O
UV absorption   λ: 260 nm Amax: ≤0.059
  λ: 280 nm Amax: ≤0.050


Other Notes

Component of culture media e.g. DEV SIMMONS Citrate agar. Acetate agar acc. to Trabulsi and Ewing

Same product — same quality — now Sigma-Aldrich brand


Ammonium phosphate monobasic can be used to study optimization reagents, protein structural analysis, proteomics, x-ray crystallography and biological buffers. Ammonium phosphate monobasic has been used to develop a simple high-performance liquid chromatographic method for determining N1-alkylnicotinamides, including C1C5 alkyl derivatives, in urine. Ammonium phosphate monobasic has also been used to develop a high-performance liquid chromatographic assay coupled with UV detection (254 nm) for the determination of midazolam and two of its hydroxylated metabolites in human plasma.

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Amplified Detection
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & Articles

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