71405

Sodium citrate tribasic dihydrate

puriss. p.a., ACS reagent, ≥99.0% (NT)

• Synonym(s): Citric acid trisodium salt dihydrate, Trisodium citrate dihydrate
• Linear Formula: HOC(COONa)(CH₂COONa)₂ · 2H₂O
• CAS Number: 6132-04-3
• Molecular Weight: 294.10
• Beilstein: 6104939
• EC Number: 200-675-3
• MDL number: MFCD00150031
• UNSPSC Code: 12352100
• PubChem Substance ID: 329763245
• NACRES: NA.21

Properties

• grade: ACS reagent; puriss. p.a.
• Quality Level: 200
• Assay: ≥99.0% (NT)
• form: powder
• impurities: 11-13% water (KFT)
• pH: 7.0-9.0 (25 °C, 50 mg/mL in H₂O)
• mp: >300 °C (lit.)
• solubility: water: soluble 29.4 g/L at 20 °C
• anion traces: chloride (Cl^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Ca: ≤50 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤100 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; NH₄⁺: ≤10 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg; heavy metals: ≤5 ppm (by ICP-OES)
• SMILES string: O.O.[Na+].[Na+].[Na+].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O
• InChI: 1S/C6H8O7.3Na.2H2O/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);;;;2*1H2/q;3*+1;;/p-3
• InChI key: NLJMYIDDQXHKNR-UHFFFAOYSA-K

Description

General description

Sodium citrate tribasic dihydrate is the tribasic dihydrate sodium salt of citric acid.

Application

• Kinetic Study of Silver Nanoparticle Formation: This study examines the influence of varying concentrations of sodium citrate tribasic dihydrate in the synthesis of silver nanoparticles. The sodium citrate acts as a reducing agent, impacting the formation and stability of the nanoparticles. The detailed kinetic analysis contributes to understanding the nucleation and growth mechanisms of silver nanoparticles in the presence of sodium citrate tribasic dihydrate (SA Diaz - The Undergraduate Research Journal at the University of Northern Colorado, 2019).

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