Tuesday, September 27, 2011

Make hydrogen bromide

Make hydrogen bromide Video Clips.





How to make hydrogen bromide. Potassium (240g.) is dissolved in water (400ml.) into a glass and the glass is cooled in ice or in a bath of cold water. Concentrated sulfuric acid (180ml.) is then added slowly. He also ensured that the temperature does not rise above 75 degrees, or a little 'of bromine can be formed. The solution is cooled to room temperature and acid sulphate of potassium, which has separated is removed by filtration through hardened filter paper in a BuchnerFunnel. The filtrate is distilled from a flask liters, and the fraction collected 124-127 bp, which contains trace amounts of sulfates. Pure hydrogen bromide constant boiling distillation of a small barium. The yield is about 285g. or 85%. theory.

Keywords: acid, hydrobromic Acid, Potassium bromide

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