详细说明
别名: 柠檬酸 三钠盐二水合物 柠檬酸三钠二水合物
线性分子式 HOC(COONa)(CH2COONa)2 · 2H2O
分子量 294.10
Beilstein Registry Number 6104939
EINECS 编号 200-675-3
MDL number MFCD00150031
PubChem Substance ID 24892616
产品名称
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.
性质
| product line | BioXtra |
| assay | ≥99.0% (titration) |
| impurities | Insoluble matter, passes filter test |
| pH | 7.5-9.0 (20 °C, 0.1 M in H2O) |
| mp | >300 °C(lit.) |
| solubility | H2O: soluble0.1 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): ≤0.001% |
| sulfate (SO42-): ≤0.005% | |
| cation traces | Al: ≤0.0005% |
| As: ≤0.00001% | |
| Ba: ≤0.0005% | |
| Bi: ≤0.0005% | |
| Ca: ≤0.005% | |
| Cd: ≤0.0005% | |
| Co: ≤0.0005% | |
| Cr: ≤0.0005% | |
| Cu: ≤0.0005% | |
| Fe: ≤0.0005% | |
| K: ≤0.01% | |
| Li: ≤0.0005% | |
| Mg: ≤0.0005% | |
| Mn: ≤0.0005% | |
| Mo: ≤0.0005% | |
| NH4+: ≤0.001% | |
| Ni: ≤0.0005% | |
| Pb: ≤0.0005% | |
| Zn: ≤0.0005% | |
| absorption | A, H2O ≤0.010 |
| A≤0.010 |
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