Substance
ID:177817
Names and Identifiers
IUPAC name
trisodium 2-hydroxypropane-1,2,3-tricarboxylate dihydrate
Synonyms
柠檬酸 三钠盐 二水合物柠檬酸钠 二水合物柠檬酸三钠 二水合物Sodium citrate tribasic dihydrate
IUPAC Traditional name
trisodium citrate dihydrate
Registration numbers
CAS Number
EC Number
MDL Number
Beilstein Number
PubChem SID
Properties
Product Information
Cation Traces
Mn: ≤0.0005%
As: ≤0.00001%
Li: ≤0.0005%
Al: ≤0.0005%
Cu: ≤0.0005%
Mo: ≤0.0005%
Zn: ≤0.0005%
Bi: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.01%
Mg: ≤0.0005%
Ba: ≤0.0005%
Ca: ≤0.005%
Pb: ≤0.0005%
Ni: ≤0.0005%
Cd: ≤0.0005%
Cr: ≤0.0005%
Co: ≤0.0005%
NH4+: ≤0.001%
Purity
≥99.0% (titration)
Impurities
Insoluble matter, passes filter test
Antion Traces
chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%
Safety Information
Personal Protective Equipment
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
German water hazard class
1
Physical Property
pH
7.5-9.0 (20 °C, 0.1 M in H2O)
Absorption Wavelength
A0.1M/260, H2O ≤0.010
A/280 ≤0.010
Melting Point
>300 °C(lit.)
Solubility
H2O: soluble0.1 M at 20 °C, clear, colorless
Molecule Details
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.
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.
Molecular Spectra
No Data Available
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References
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