High Purity Hydrogen Bromide（HBr）Specialty Gases
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Contact usSpecifications
| Purity , % | 99.9 | 99.99 | 99.999 |
| Oxygen | ≤ 10 ppmv | ≤5.0 ppmv | ≤1.0 ppmv |
| Nitrogen | ≤ 20 ppmv | ≤15 ppmv | ≤3.0 ppmv |
| Carbon Dioxide | ≤ 20 ppmv | ≤10 ppmv | ≤3.0 ppmv |
| Carbon Monoxide | ≤ 20 ppmv | ≤0.5 ppmv | ≤0.5 ppmv |
| Methane + Acetylene | ≤ 5 ppmv | ≤5 ppmv | ≤1.5 ppmv |
| Water | ≤ 5 ppmv | ≤5 ppmv | ≤1.0 ppmv |
Technical Information
| Cylinder State @ 21.1°C | Liquid |
| Flammable Limits In Air | Non-flammable |
| Auto Ignition Temperature (°C ) | - |
| Molecular Weight (g/mol) | 80.912 |
| Specific gravity (air =1) | 3.5 |
| Critical Temperature ( °C ) | 90 |
| Critical Pressure ( psig ) | 1225.69 |
Description
Hydrogen bromide is the inorganic compound with the formula HBr. It is a hydrogen halide consisting of hydrogen and bromine. A colorless gas, it dissolves in water, forming hydrobromic acid, which is saturated at 68.85% HBr by weight at room temperature. Aqueous solutions that are 47.6% HBr by mass form a constant-boiling azeotrope mixture that boils at 124.3 °C (255.7 °F). Boiling less concentrated solutions releases H2O until the constant-boiling mixture composition is reached.Hydrogen bromide, and its aqueous solution, hydrobromic acid, are commonly used reagents in the preparation of bromide compounds.Hydrogen Bromide is a colorless , corrosive , irritating , nonflammable, toxic gas with a suffocating odor, it is shipped as a liquefied gas in steel cylinders under its own vapor pressure .
Applications
● In semiconductor fabrication: plasma etching of polysilicon
● In chemical reactions, most often in pharmaceutical applications
● In halogen lamps.
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