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60153

Sigma-Aldrich

Potassium citrate tribasic monohydrate

purum p.a., ≥99.0% (NT)

Synonym(s):

Citric acid tripotassium salt, Tripotassium citrate

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About This Item

Linear Formula:
HOC(COOK)(CH2COOK)2 · H2O
CAS Number:
Molecular Weight:
324.41
Beilstein:
3924344
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

grade

purum p.a.

Quality Level

Assay

≥99.0% (NT)

form

liquid

pH

7.5-9.0 (25 °C, 50 mg/mL in H2O)

mp

275 °C (dec.) (lit.)

solubility

H2O: 0.5 g/10 mL, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
Na: ≤1500 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

SMILES string

O.[K+].[K+].[K+].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O

InChI

1S/C6H8O7.3K.H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;;1H2/q;3*+1;/p-3

InChI key

PJAHUDTUZRZBKM-UHFFFAOYSA-K

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General description

Potassium citrate tribasic monohydrate is the tripotassium salt of citric acid. It has been proposed as a promising organic salt for the formation of aqueous two-phase system (ATPS). UCON (temperature-responsive polymer) + potassium citrate ATPS has been studied.

Application

Potassium citrate tribasic monohydrate (tribasic potassium citrate) may be added as a promoter during the preparation of activated carbon-supported CuCl2 + PdCl2 + NaOH catalyst. This catalyst was employed for the conversion of ethanol to diethyl carbonate (DEC).1 It may be used to compose the fermentation medium for Aspergillus niger 72-4. It may be used as a standard to investigate the influence of Bergenia ligulata rhizome (BLR) on CaC2O4 crystallization.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Carbon dioxide fixation by cell-free extracts of Aspergillus niger.
Woronick CL and Johnson MJ.
The Journal of Biological Chemistry, 235(1), 9-15 (1960)
(Liquid+ liquid) equilibria of polymer-salt aqueous two-phase systems for laccase partitioning: UCON 50-HB-5100 with potassium citrate and (sodium or potassium) formate at 23?C.
Lladosa E, et al.
The Journal of Chemical Thermodynamics, 55, 166-171 (2012)
Antiurolithic effect of Bergenia ligulata rhizome: an explanation of the underlying mechanisms.
Bashir S and Gilani AH.
Journal of Ethnopharmacology, 122(1), 106-116 (2009)
Clay Mechlin et al.
Journal of endourology, 25(9), 1541-1545 (2011-08-06)
Oral citrate supplements have been shown to decrease kidney stone recurrence rates in both laboratory and clinical studies. The taste of the citrate supplements, however, is poor, and long-term compliance is low. Our objective was to determine if Splenda(®) added
Chao-Yang Duan et al.
International journal of nanomedicine, 8, 909-918 (2013-03-08)
The property changes of urinary nanocrystallites in 13 patients with calcium oxalate (CaOx) stones were studied before and after ingestion of potassium citrate (K3cit), a therapeutic drug for stones. The analytical techniques included nanoparticle size analysis, transmission electron microscopy, X-ray

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