SODIUM DIHYDROGEN CITRATE CAS#18996-35-5
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High Industrial Purity – Sodium dihydrogen citrate offers an industrial-grade purity of ≥99%, supporting consistent quality and reliable performance in various applications.
Excellent Water Solubility – It is highly soluble in water, while being slightly soluble in ethanol and insoluble in ether and chloroform, providing versatile solvent compatibility.
Well-Defined Physical Properties – Sodium dihydrogen citrate is a white crystalline powder with a melting point of approximately 150°C (decomposition) and a relative density of 1.85 at 20°C.
Stable Under Normal Conditions – Sodium dihydrogen citrate remains stable under normal storage and handling conditions, with a vapor pressure below 0.001 mmHg at 25°C.
Products Description of Sodium Dihydrogen Citrate CAS#18996-35-5
Sodium dihydrogen citrate is an industrial-grade product with a purity of ≥99%. It appears as a white crystalline powder and is odorless. It has a melting point of approximately 150°C (decomp), while it decomposes before reaching its boiling point. Its vapor pressure is below 0.001 mmHg at 25°C, and its relative density is 1.85 at 20°C.
Sodium dihydrogen citrate is highly soluble in water, slightly soluble in ethanol, and insoluble in ether and chloroform. It is stable under normal conditions but is incompatible with strong oxidizing agents and strong bases.
Parameters
| Melting point | 212 °C(lit.) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | H2O: 0.25 M at 20 °C, clear, colorless |
| form | Crystalline Powder |
| color | White |
| Odor | Odorless |
| PH | 4.07(1 mM solution);3.87(10 mM solution);3.71(100 mM solution);3.48(1000 mM solution) |
| Water Solubility | Soluble in water. Insoluble in ethanol. |
| λmax | λ: 260 nm Amax: 0.15 |
| λ: 280 nm Amax: 0.05 | |
| BRN | 3920246 |
| Cosmetics Ingredients Functions | BUFFERING |
| InChI | InChI=1S/C6H8O7.Na.H/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);; |
| InChIKey | JKYDHHIKDADVTE-UHFFFAOYSA-N |
| SMILES | C(O)(C(=O)O)(CC(=O)O)CC(=O)O.[NaH] |
| CAS DataBase Reference | 18996-35-5(CAS DataBase Reference) |
| EPA Substance Registry System | 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, monosodium salt (18996-35-5) |
| Hazard Codes | Xi |
| Risk Statements | 36 |
| Safety Statements | 22-24/25 |
| WGK Germany | 1 |
| RTECS | GE7950000 |
| F | 3 |
| TSCA | Yes |
| HS Code | 29181500 |
Product Application of Sodium Dihydrogen Citrate CAS#18996-35-5
Sodium dihydrogen citrate is used as a buffering agent and sequestrant. It also serves as a reducing agent and stabilizer in the preparation of Fe₃O₄ platinum core/shell particles. In addition, it is used in the electrochemical reduction of protons at carbon fiber electrodes in the presence or absence of platinum nanoparticles.
Sodium dihydrogen citrate also plays a useful role in the characterization of carbon-based electrode materials used as cathodes in half-cell configurations.
