Sodium Dihydrogen Citrate
Description
This is industrial-grade sodium dihydrogen citrate with a minimum purity of 99%. It features stable physical properties under normal ambient conditions.
- Melting Point: Decomposes at 150 °C
- Boiling Point: No definite boiling point; the substance decomposes completely before reaching the boiling state
- Relative Density: 1.85 (measured at 20 °C)
- Vapor Pressure: Lower than 0.001 mmHg at 25 °C
- Solubility: Freely soluble in water; slightly soluble in ethanol; practically insoluble in ether and chloroform
- Additional Properties: Slightly hygroscopic under regular atmospheric environment; the aqueous solution shows weak acidity
- Chemical Stability & Compatibility: The product maintains excellent stability during standard storage and usage. It is chemically incompatible with strong oxidizing agents and strong bases, so direct mixing or contact with these materials is strictly prohibited.
- Storage Suggestion: Keep sealed and store in a cool, dry and well-ventilated warehouse to prevent moisture absorption and deterioration.
Parameters
| Item | Value |
| 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) |
Safety Information
| Item | Value |
| 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 CitrateCAS18996-35-5
Sodium dihydrogen citrate is a multifunctional chemical auxiliary widely used in general industrial production, material synthesis and electrochemical research fields.
- It is commonly used as a high-efficiency buffering agent and sequestering agent in various industrial formulations.
- In the synthesis of Fe₃O₄ platinum core-shell particles, it functions as both a reducing agent and a stabilizer, which helps control the reaction rate and preserve the complete structure of target particles.
- It is extensively applied in electrochemical experimental research. It participates in the electrochemical reduction reaction of protons on carbon fiber electrodes, applicable to electrodes with or without loaded platinum nanoparticles.
- It also serves as an auxiliary reagent for performance testing and structural characterization of carbon-based cathode materials in half-cell experimental setups.
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