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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.

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)
Donna J Claes et al.
Pediatric nephrology (Berlin, Germany), 27(11), 2031-2038 (2012-01-28)
Cystinuria is a relatively uncommon cause of pediatric stone disease, but has significant morbidity if not properly controlled because of its significant stone recurrence rate. Cystinuria is caused by the inability of the renal tubules to reabsorb filtered cystine, which
Naim M Maalouf et al.
The Journal of clinical endocrinology and metabolism, 96(12), 3733-3740 (2011-10-07)
Dietary intake of animal proteins is associated with an increase in urinary calcium and nephrolithiasis risk. We tested the hypothesis that the acid load imposed by dietary proteins causes this hypercalciuria. In a short-term crossover metabolic study, an alkali salt

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