1,1,2,2-tetrabromoethane
Description
1,1,2,2-Tetrabromoethane (CAS 79-27-6), also known as TBE or Muthmann's liquid, is a dense halogenated solvent with a specific gravity significantly above most organic liquids. This property makes it a selective tool for density-based separation and analytical processes across several industrial sectors.
In mineral processing and ore analysis, TBE functions as a heavy liquid medium for sink-float separation, allowing laboratories and mining operations to isolate minerals by density without mechanical crushing.
Pharmaceutical and chemical manufacturers use it as a solvent in specialized synthesis steps where halogenated media are required for reaction control or intermediate processing. It provides a stable environment for complex chemical transformations.
In biotechnology and life sciences, TBE serves as a reference liquid and density gradient medium in laboratory-scale separations and microscopy preparation workflows. Its high density also makes it a calibration reference in analytical instrumentation.
The product is used for quality control in research environments where precise density measurements are required. 1,1,2,2-Tetrabromoethane is supplied as a liquid, typically in reagent-grade and technical-grade specifications.
Reagent-grade material is available for laboratory and analytical applications, while technical-grade supply supports larger-scale industrial use. It is commonly packaged in smaller quantities reflecting its specialized demand profile.
Physical Properties
| Melting Point | 0 °C |
| Boiling Point | 151 °C @ Press: 54 Torr |
| Density | 2.9656 g/cm³ @ Temp: 20 °C |
| Flash Point | 118-120°C/15mm |
| Appearance | Acetylene tetrabromide is a combustible, colorless to yellow liquid. Strong odor. |
| Color | Clear |
| Form | Liquid |
| Water Solubility | 0.63 g/L (20 ºC) |
| Vapor Pressure | 0.1 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.637(lit.) |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29033036 |
| UN Number | 2504 |
| ADR Class | 6.1 |
| Packing Group | III |
| Storage Class | 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| WGK (Germany) | 2 |
Documentation
Other Names
TBE|Symmetrical tetrabromoethane|Muthmann's liquid|Acetylene tetrabromide|sym-Tetrabromoethane|Ethane, 1,1,2,2-tetrabromo-|s-Tetrabromoethane|1,1,2,2-Tetrabromaethan
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