Potassium citrate tribasic monohydrateCAS: 6100-05-6
MF: C6H5O7K3
MW: 324.41
A buffering agent and chelator.

Potassium citrate tribasic monohydrate (CAS 6100-05-6)

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Application: A buffering agent and chelator
CAS Number: 6100-05-6
Purity: ≥99%
Molecular Weight: 324.41
Molecular Formula: C6H5O7K3
* Refer to Certificate of Analysis for lot specific data (including water content).
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Potassium citrate tribasic is the potassium salt of citric acid. Used in the laboratory as a buffering agent and chelator. In renal function studies, potassium citrate is used as an alkanizing agent where the citric acid is a metabolic substrate in renal cells. Studies have shown that potassium citrate may increase bone density, it is therefore used in research experiments related to the treatment of osteoporosis.
Also available: Potassium citrate monobasic (sc-215737); Potassium citrate tribasic solution (sc-215738)


1. Tanner, G.A., 1998. J. Am. Soc. Nephrol. 9: 1242-1248. PMID: 9644634
2. Marangella, M., et al. 2004. Calcif. Tissue Int. 74: 330-335. PMID: 15255069
3. Mardon, J., et al. 2008. J. Nutr. 138: 718-724. PMID: 18356326
4. Fabris, A., et al. 2009. Clin J Am Soc Nephrol. 4: 1974-1979. PMID: 19808216

Appearance :
Physical State :
Solubility :
Soluble in water (640 mg/ml at 25° C), and glycerol. Insoluble in alcohol.
Storage :
Store at room temperature
Melting Point :
275° C (lit.)(dec.)
Density :
1.98 g/cm3 at 20° C
Refractive Index :
n20D ~1.58 (Predicted)
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
WGK Germany :
PubChem CID :
Merck Index :
14: 7623
MDL Number :
EC Number :
Beilstein Registry :

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Certificate of Analysis

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