Products Description of Tetraethylammonium Bromide CAS#71-91-0
Tetraethylammonium bromide is an organic compound with the chemical formula (C₂H₅)₄NBr. It appears as white crystalline solids and is hygroscopic in nature. The compound is highly soluble in water, ethanol, chloroform, and acetone, but only slightly soluble in benzene. Its solubility in water reaches 2795 g/L at 25°C.
A 10% aqueous solution of tetraethylammonium bromide has a pH of approximately 6.5, and this pH remains stable even after heating at 95°C for 28 hours. Due to its chemical properties, the compound should be handled with care, as it may cause irritation. It is widely used as a polarographic reagent and pesticide intermediate, and can also be applied in the detection of precious metals such as gold, iridium, palladium, rhodium, and ruthenium.
Tetraethylammonium bromide Chemical Properties
| 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 | Liquid |
| 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 | 149199 |
| BRN | 3563430 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | HWCKGOZZJDHMNC-UHFFFAOYSA-M |
| CAS DataBase Reference | 71-91-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Tetraethylammonium bromide(71-91-0) |
| EPA Substance Registry System | Ethanaminium, N,N,N-triethyl-, bromide (71-91-0) |
| 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 |
Product Application of Tetraethylammonium Bromide CAS#71-91-0
Tetraethylammonium bromide is widely used as a phase transfer catalyst in organic synthesis and as a curing accelerator in polymerization processes. It also serves as an organic electrolyte in the electronics industry, an oilfield chemical additive, and a molecular sieve template agent.
In addition, it can be applied in phase-change cold storage materials, high-performance liquid chromatography analysis, surfactant formulations, descaling agents, adsorbents, oil displacement agents, and other industrial applications.
Company Profile
Furuida (Jinan) Chemical Technology Co., Ltd. is a modern fine‑chemical enterprise based in Shandong, China, integrating research and development, manufacturing, sales and global service capabilities. Focused on new‑generation chemical materials, the company adheres to its core business ethos of integrity, superior quality and outstanding service. Leveraging technological innovation and stringent quality management, the company pursues sustainable growth by advancing international layout, standardized operation and brand development.
Equipped with a seasoned team for foreign trade and technical support, the enterprise draws support from a well‑established global supply framework and strong supply‑chain strength. Achieving annual sales of over RMB 600 million, it provides services to more than 5,000 industrial customers around the world. Its business reach covers multiple countries and regions throughout Asia, Europe, Africa and Oceania, which has helped it build a solid global customer network and gain high recognition across the fine‑chemical industry.
Its core product lineup consists of pharmaceutical chemical raw materials, food additives, electroplating chemicals, water treatment agents, dye auxiliaries, advanced functional materials, titanium compounds, metal salts, catalysts and surfactants. Widely deployed in pharmaceuticals, electronics, coatings, rubber and plastics, fine chemicals and water‑treatment industries, these offerings empower the company to deliver consistently stable, cost‑competitive chemical products as well as full‑fledged one‑stop solutions for global partners.
