I. Physical and Chemical Properties
Also known as: Triethylmethylammonium tetrafluoroborate, English name: Triethylmethylammonium Tetrafluoroborate, CAS No.: 69444-47-9, molecular formula: C₇H₁₈BF₄N, molecular weight: 203.03.
II. Quality Specifications
| No. | Item | Standard | Unit |
|---|---|---|---|
| 1 | Appearance | White crystals | —— |
| 2 | Content | ≥99.0 | Wt% |
| 3 | Moisture | ≤3000 | ppm |
| 4 | Insolubles (in PC) | ≤1500 | ppm |
| 5 | Free Acid (calculated as HF) | ≤50 | ppm |
| 6 | Iron (Fe) | ≤2 | ppm |
| 7 | Heavy Metals (calculated as Pb) | ≤6 | ppm |
| 8 | Chloride (Cl⁻) Content | ≤2 | ppm |
| 9 | Sulfate (SO₄²⁻) Content | ≤10 | ppm |
III. Applications
As an electrolyte salt for supercapacitor electrolytes, in addition to properties such as high melting point, stable chemical structure, and wide electrochemical window, it also features comparable cation and anion radii, and higher solubility and electrochemical decomposition voltage than tetraethylammonium tetrafluoroborate. The electrolyte prepared with this salt has good temperature adaptability, high electrical conductivity, a more stable and reliable electric double layer, and lower leakage current. Therefore, it is increasingly widely used in supercapacitors.
IV. Packaging Specifications
0.5kg/drum, 1.0kg/drum, 20kg/drum