Sodium citrate tribasic dihydrate

• Catalog No.: C3434
• CAS Number: 6132-04-3
• M. F.: C6H9Na3O9
• M. W.: 294.09957
• Purity: ≥99.0% (titration)

SYNONYMS

• Title: 柠檬酸钠 二水合物
• IUPAC name: trisodium 2-hydroxypropane-1,2,3-tricarboxylate dihydrate
• IUPAC Traditional name: trisodium citrate dihydrate
• Synonyms: 柠檬酸 三钠盐 二水合物; 柠檬酸三钠 二水合物

DATABASE IDS

• MDL Number: MFCD00150031
• CAS Number: 6132-04-3
• EC Number: 200-675-3
• PubChem SID: 24892616
• Beilstein Number: 6104939

PROPERTIES

• Antion Traces: chloride (Cl-): ≤0.001%
• Antion Traces: sulfate (SO42-): ≤0.005%
• Cation Traces: Al: ≤0.0005%
• Cation Traces: As: ≤0.00001%
• Cation Traces: Ba: ≤0.0005%
• Cation Traces: Bi: ≤0.0005%
• Cation Traces: Ca: ≤0.005%
• Cation Traces: Cd: ≤0.0005%
• Cation Traces: Co: ≤0.0005%
• Cation Traces: Cr: ≤0.0005%
• Cation Traces: Cu: ≤0.0005%
• Cation Traces: Fe: ≤0.0005%
• Cation Traces: K: ≤0.01%
• Cation Traces: Li: ≤0.0005%
• Cation Traces: Mg: ≤0.0005%
• Cation Traces: Mn: ≤0.0005%
• Cation Traces: Mo: ≤0.0005%
• Cation Traces: NH4+: ≤0.001%
• Cation Traces: Ni: ≤0.0005%
• Cation Traces: Pb: ≤0.0005%
• Cation Traces: Zn: ≤0.0005%
• Impurities: Insoluble matter, passes filter test
• Purity: ≥99.0% (titration)
• Absorption Wavelength: A0.1M/260, H2O ≤0.010
• Absorption Wavelength: A/280 ≤0.010
• Melting Point: >300 °C(lit.)
• pH: 7.5-9.0 (20 °C, 0.1 M in H2O)
• Solubility: H2O: soluble0.1 M at 20 °C, clear, colorless
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• German water hazard class: 1

DETAILS

Description (English)

Biochem/physiol Actions
Sodium citrate can act as a buffering agent, resisting changes in pH. Used in blood collection tubes, the citrate chelates calcium ions in blood and thereby disrupts blood clotting. Citrate is a intermediate in the TCA cycle and fatty acid synthesis. Citrate is an allosteric modulator of acetyl-CoA carboxylase, the enzyme that regulates the conversion of acetyl-CoA to malonyl-CoA.