60153

Potassium citrate tribasic monohydrate

purum p.a., ≥99.0% (NT)

• Synonym(s): Citric acid tripotassium salt, Tripotassium citrate
• Linear Formula: HOC(COOK)(CH₂COOK)₂ · H₂O
• CAS Number: 6100-05-6
• Molecular Weight: 324.41
• Beilstein: 3924344
• EC Number: 231-905-0
• MDL number: MFCD00150442
• UNSPSC Code: 12352100
• PubChem Substance ID: 57651729
• NACRES: NA.21
• Assay: ≥99.0% (NT)
• form: liquid
• solubility: H₂O: 0.5 g/10 mL, clear, colorless

Properties

• grade: purum p.a.
• Quality Level: 200
• 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 (SO₄^2-): ≤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

Description

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.[1]

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.[2] It may be used as a standard to investigate the influence of Bergenia ligulata rhizome (BLR) on CaC₂O₄ crystallization.[3]

Safety Information

• 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