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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/REAXYS Number:
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_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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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)
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)
Zeynep Yarbaşi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 79(5), 1304-1307 (2011-06-07)
An EPR and optical studies of VO2+ doped potassium dihydrogen citrate (PDHC) single crystals have been carried out at room temperature. It crystallizes in triclinic symmetry with the unit cell dimensions: a=11.343Å, b=13.078Å, c=6.272Å, α=89.79°, β=94.36°, γ=104.2°. The angular variation
Arun Gopalakrishnan et al.
Clinical and experimental nephrology, 15(5), 745-748 (2011-06-01)
Fanconi-Bickel syndrome is a rare autosomal recessive disorder characterized by hepatorenal glycogen accumulation, proximal renal tubular dysfunction and impaired utilization of glucose and galactose. Most cases have been reported from Europe, Japan, Turkey and the Mediterranean belt. We report a

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