Acesulfame Potassium (Ace-K) CAS# 55589-62-3
High Solubility: Tetraethylammonium bromide demonstrates substantial solubility in water and is readily soluble in organic solvents such as ethanol, chloroform, and acetone, facilitating its employment in diverse applications.
Stable pH: The 10% aqueous solution of this compound maintains a consistent pH of 6.5 following heating at 95°C for 28 hours, indicating robust thermal stability in aqueous media.
Versatile Uses: It serves as a polarographic reagent, an intermediate in pesticide synthesis, and for the analytical determination of precious metals including gold and palladium.
Crystalline Form & Hygroscopic Nature: This material is provided as a white crystalline solid with hygroscopic tendencies, making it applicable in industrial settings that necessitate accurate dosing and meticulous handling.
Tetraethylammonium bromide, characterized by the molecular formula (C₂H₅)₄NBr, presents as a white crystalline solid with hygroscopic properties. It exhibits high solubility in water (2795 g/L at 25°C), ethanol, chloroform, and acetone, while displaying limited solubility in benzene. A 10% aqueous solution of this compound maintains a pH of 6.5, demonstrating stability after heating at 95°C for 28 hours. The substance possesses irritant characteristics and is utilized as a polarographic reagent, an intermediate in pesticide production, and for the analytical determination of precious metals such as gold, iridium, palladium, rhodium, and ruthenium.
| Tetraethylammonium bromide Chemical Properties | Parameters |
|---|---|
| Melting point | 285 °C (dec.)(lit.) |
| Density | 1.397 g/cm³ |
| Vapor density | 5.3 (vs air) |
| Refractive index | 1.442-1.444 |
| Storage temp | Store below +30°C |
| Solubility | acetonitrile: 0.1 g/mL warm, clear, colorless |
| Form | Crystalline solid |
| Color | White to cream |
| Odor | Odorless |
| PH Range | 6.5 at 100 g/l |
| pH | 6.5 (100g/l, H₂O, 20℃) |
| Water Solubility | 2795 g/L (25 º C) |
| Sensitive | Hygroscopic |
| Merck | 149,199 |
| BRN | 3563430 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | HWCKGOZZJDHMNC-UHFFFAOYSA-M |
| CAS DataBase Reference | 71-91-0 |
| NIST Chemistry Reference | Tetraethylammonium bromide (71-91-0) |
| EPA Substance Registry System | Ethanaminium, N,N,N-triethyl-, bromide (71-91-0) |
| Safety Information | Content |
|---|---|
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-37/39 |
| WGK Germany | 3 |
| RTECS | BS5950000 |
| F | 3 |
| TSCA | Yes |
| HS Code | 29239000 |
This compound is employed as a phase-transfer catalyst in organic synthesis, a polymerization curing accelerator, and an organic electrolyte in electronic applications. It also functions in oilfield chemicals, serves as a template for molecular sieve synthesis, acts as a phase-change cold storage material, and is utilized as a reagent in high-performance liquid chromatography. Additionally, it finds application as a surfactant, descaling agent, adsorbent, and enhanced oil recovery agent.
