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Potassium citrate tribasic monohydrate

eluent additive for LC-MS

DOWNLOAD MSDS (PDF)

Synonym: Citric acid tripotassium salt, Tripotassium citrate

  • CAS Number 6100-05-6

  • Linear Formula HOC(COOK)(CH2COOK)2 · H2O

  • Molecular Weight 324.41

  •  Beilstein Registry Number 3924344

  •  EC Number 231-905-0

  •  MDL number MFCD00150442

Potassium citrate tribasic monohydrate eluent additive for LC-MS
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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Chromatography Reagents & Solvents, LC-MS Mobile Phase Additives, LC-MS Solvents & Reagents (CHROMASOLV) More...
grade   eluent additive for LC-MS
assay   ≥99.5% (NT)
shelf life   (limited shelf life, expiry date on the label)
impurities   insoluble matter, passes filter test
pH   8.0-9.5 (25 °C, 1 M in H2O)
mp   275 °C (dec.)(lit.)
solubility   H2O: soluble1 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: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤1000 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   1 M in H2O
UV absorption   λ: 260 nm Amax: ≤0.06
  λ: 280 nm Amax: ≤0.03
suitability   passes test for LC-MS
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