Ethyl bromide
Ethyl Bromide: High-Purity Chemical Solution for Industrial Applications
Ethyl bromide (C2H5Br), also known as bromoethane, is a versatile alkyl halide compound used across multiple industries. Our premium-grade ethyl bromide meets the highest quality standards for laboratory, pharmaceutical, and industrial applications.
Key Product Specifications:
- Chemical Formula: C2H5Br
- Molecular Weight: 108.97 g/mol
- Appearance: Colorless to pale yellow liquid
- Purity: ≥99.5%
- Boiling Point: 38.4°C (101.1°F)
- Melting Point: -119°C (-182.2°F)
- Density: 1.460 g/cm³ at 20°C
- Refractive Index: n20/D 1.424
Packaging Options:
| Package Size | Material | Special Features |
|---|---|---|
| 500 mL | Amber glass bottle | PTFE-lined cap |
| 1 Liter | HDPE plastic | Double containment |
| 5 Liters | Stainless steel | Pressure relief valve |
| 25 Liters | Specialty drum | UN-certified packaging |
Storage and Handling Recommendations:
| Parameter | Requirement |
|---|---|
| Temperature Range | 2-8°C (35-46°F) |
| Light Exposure | Store in dark conditions |
| Container | Tightly sealed, corrosion-resistant |
| Shelf Life | 24 months when properly stored |
Ethyl Bromide FAQs
Q: What are the primary industrial uses of ethyl bromide?
A: Ethyl bromide serves as an important chemical intermediate in pharmaceuticals, agrochemicals, and specialty chemicals. It's commonly used as an ethylating agent in organic synthesis, refrigerant in specialty applications, and fumigant (though strictly regulated). In laboratory settings, ethyl bromide is valuable for Grignard reactions and other synthetic applications.
Q: What safety precautions should be taken when handling ethyl bromide?
A: Always use proper PPE including chemical-resistant gloves, goggles, and fume hood when handling ethyl bromide. The compound is volatile and harmful if inhaled, so ensure adequate ventilation. Store away from strong oxidizers and bases to prevent hazardous reactions. In case of skin contact, immediately wash with copious amounts of water for at least 15 minutes and seek medical attention.
Q: How does ethyl bromide compare to other alkyl halides in chemical reactions?
A: Ethyl bromide offers distinct advantages in certain reactions due to its intermediate reactivity between ethyl chloride and ethyl iodide. The carbon-bromine bond (285 kJ/mol) is weaker than C-Cl but stronger than C-I bonds, making it ideal for controlled ethylation reactions. It's more reactive than ethyl chloride in nucleophilic substitutions but less expensive and more stable than ethyl iodide. These properties make ethyl bromide particularly useful for SN2 reactions where selectivity is important.
Chemical Properties Comparison:
| Property | Ethyl Bromide | Ethyl Chloride | Ethyl Iodide |
|---|---|---|---|
| Boiling Point (°C) | 38.4 | 12.3 | 72.3 |
| C-X Bond Energy (kJ/mol) | 285 | 339 | 234 |
| Relative Reactivity (SN2) | 1.00 | 0.03 | 1.30 |
| Price per kg (USD) | $85-120 | $35-50 | $300-450 |
Common Applications:
- Pharmaceutical intermediates synthesis
- Quarantine pre-shipment fumigation (restricted use)
- Catalyst in petroleum refining
- Electroplating solutions
- Fire extinguishing systems (special applications)
- Laboratory reagent for organic synthesis
Additional Ethyl Bromide FAQs
Q: What is the proper disposal method for ethyl bromide waste?
A: Ethyl bromide waste must be treated as hazardous material and disposed according to local regulations. Never pour down drains or discard with regular trash. Small quantities can be neutralized by reaction with sodium hydroxide solution in a fume hood (produces ethanol and sodium bromide). For larger quantities, contact licensed hazardous waste disposal services who can perform proper incineration or chemical treatment.
Q: Can ethyl bromide be shipped internationally?
A: International shipment of ethyl bromide is heavily regulated due to its classification as a hazardous material (UN1891). It requires proper classification, packaging, labeling, and documentation according to IATA (air), IMDG (sea), and ADR/RID (road/rail) regulations. Many countries require special import permits for ethyl bromide. Always consult with professional chemical logistics providers and check destination country regulations before shipping.
Q: What analytical methods are used to verify ethyl bromide purity?
A: Our quality control employs multiple analytical techniques: Gas Chromatography (GC-FID) with internal standardization for quantitative purity assessment (≥99.5%), Karl Fischer titration for water content (<0.1%), ICP-MS for heavy metal contaminants (<5 ppm), and FTIR spectroscopy for structural confirmation. Each batch comes with comprehensive Certificate of Analysis including chromatograms and test results.
Regulatory Information:
| Regulation | Classification |
|---|---|
| UN Number | UN1891 |
| Hazard Class | 6.1 (Toxic) |
| GHS Pictograms | Skull & Crossbones, Health Hazard |
| REACH Status | Registered |
| OSHA Hazards | Flammable liquid, Toxic by inhalation |
