Four broMide
Tetramethylammonium bromide
CAS: 64-20-0
Molecular Formula: C4H12BrN
Four broMide - Names and Identifiers
Four broMide - Physico-chemical Properties
| Molecular Formula | C4H12BrN |
| Molar Mass | 154.05 |
| Density | 1,56 g/cm3 |
| Melting Point | >300 °C (lit.) |
| Boling Point | >360°C |
| Water Solubility | soluble |
| Solubility | Easily soluble in water, slightly soluble in anhydrous alcohol, insoluble in ether. |
| Appearance | Grey crystallization |
| Color | Slightly gray |
| Odor | Odorless |
| Maximum wavelength(λmax) | ['λ: 240 nm Amax: 0.06', , 'λ: 250 nm Amax: 0.03', , 'λ: 260 nm Amax: 0.02', , 'λ: 50 |
| BRN | 3620955 |
| PH | 5.5-6.5 (100g/l, H2O) |
| Storage Condition | Store below +30°C. |
| Sensitive | Hygroscopic |
| Refractive Index | 1.4379 (estimate) |
| MDL | MFCD00011626 |
| Use | Used as a polarographic analysis reagent |
Four broMide - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R25 - Toxic if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36 - Wear suitable protective clothing. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S37/39 - Wear suitable gloves and eye/face protection S28A - |
| UN IDs | UN 2811 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | BS7600000 |
| TSCA | Yes |
| HS Code | 29239000 |
| Hazard Class | 6.1 |
| Packing Group | II |
Four broMide - Introduction
Easy to absorb moisture, decompose when heated to above 230 ℃, and partially sublimate. Heat to 360 ℃ sublimation in vacuum. The median lethal dose (rat, abdominal cavity) was 24-6mg/kg. It's irritating.
Last Update：2022-10-16 17:27:39
Four broMide - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | tetramethylammonium bromide is an organic compound that can be used as a polarographic reagent to identify alkali and alkaline earth metals. |
| Use | used as a polarographic analysis reagent polarographic analysis reagent to identify alkali metals and alkaline earth metals. |
| production method | Firstly, methyl bromide is dissolved in ethanol, indirectly cooled with ice water, and trimethylamine is introduced for reaction, in the reaction process, tetramethyl ammonium bromide is precipitated, filtered and dried, which is the finished product: |
Last Update：2024-04-10 22:29:15
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