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21118 Sigma

Calcium citrate tribasic tetrahydrate

BioUltra, ≥98.0% (calc. on dry substance, KT)

Synonym: Citric acid calcium salt, Tricalcium dicitrate

  • CAS Number 5785-44-4

  • Linear Formula Ca3(C6H5O7)2 · 4H2O

  • Molecular Weight 570.49

  •  Beilstein Registry Number 3924520

  •  EC Number 212-391-7

  •  MDL number MFCD00150786

  •  PubChem Substance ID 57647903

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Properties

Related Categories Alphabetical, BioUltra Buffers, Biochemicals and Reagents, Biological Buffers
InChI Key   LNIZKKFWMDARJV-UHFFFAOYSA-H
product line   BioUltra
assay   ≥98.0% (calc. on dry substance, KT)
impurities   Insoluble matter, passes filter test
loss   10-14% loss on drying, 180°C, 4 h
solubility   0.1 M HCl: soluble0.01 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤100 mg/kg
cation traces   As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤50 mg/kg
  Hg: ≤0.1 mg/kg
  K: ≤500 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤1000 mg/kg
  Mn: ≤50 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤100 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤1 mg/kg
  Sr: ≤100 mg/kg
  Zn: ≤5 mg/kg
λ   0.01 M in 0.1 M HCl
UV absorption   λ: 260 nm Amax: 0.04
  λ: 280 nm Amax: 0.03

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Interactive Buffer Table
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1
Protocols & Articles

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Peer-Reviewed Papers
15

References

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