“Hydrogen bromide” is industrially obtained by reacting the simple substances hydrogen and bromine in the form of molecules. Specific are the conversion conditions, such as a temperature of approximately 200-400 °C and a catalyst d-element metalloid platinum.
Another way to produce hydrogen bromide
is the interaction of potassium bromide with sulfuric acid of one mole. Potassium hydrogen sulfate and hydrogen bromide are obtained in the form of gas:
Hydrogen Bromide Formula.
Hydrogen bromide formula – HBr is projection hybridization is of the type sp. where a spherical s-AO reacts first with one eight p-AO and one MO is formed. In the formulation of the hydrobromic formula, it always starts with the gearbox, then the oxidizer is seconded. In this case, hydrogen gives off a single electron swap and bromine, in turn, accepts it because it has a so-called electronic affinity. The bond in a compound is covalent because it is made up of two elements, which are non-metallic in nature. The electron has a directional motion toward the electron’s attracting force or so-called affinity, which means that there is a polarization or a field of motion in which case the field of motion is around the Bromide atom.
Hydrogen Bromide Physical Properties.
Important with physical properties that are well-defined and immutable for the compound in question and it is important to say that the chemical properties depend on it.
Important physical properties are the density in the gas state 3,307g / l, at a volume of 2.17 g /cm3., Boiling point -66,38°C, tapping temperature -86,80°C, critical point 90°C at pressure 8, 54mPa, water-solubility 20°C or Calvin 193°K, acidity pKa-9.
Hydrogen Bromide Uses.
Hydrogen bromide is used in pharmaceutical chemistry for the manufacture of medicines. Acid is also important in the production of:
semiconductors with plasma half-silicon;
when alcohol is dehydrated;
In organic bromine derivatives of aryl bromides;
the catalytic activity of the pure bromine electron donor;
HBr is used to make biocides that control microorganisms and save energy in cooling towers and decorative fountains. Many completion fluids that help protect the environment and improve production in oil and gas wells are produced using HBr.
HBr does all these things and more by combining with other products and by controlling chemical reactions, so we can’t see it at work. But without it, many of us wouldn’t be as healthy or as comfortable, and our homes and businesses would likely be less energy efficient.
HBr is a powerful acid that is among the most effective cleaning agents available for removing tough mineral scale from the interiors of boilers used in industrial plants and commercial heating systems.
It is used in engraving and a type of printing called lithography and is a key ingredient in the
manufacture of certain soldering fluxes, photographic chemicals, and textile finishing.
Another important point is that bromine has the property of forming crystalline hydrates with mono-, di-and tetrahydrate moieties.
The way to transport the anhydrous hydrogen bromide is through balloons with a capacity of 6.8 and 68 kg under pressure of 24atm.
Hydrogen bromide toxicity is due to its corrosive activity. The acid is a liquefied gas with an irritating odor, and gas is a property of no flammability. In the form of gas, the compound passes through the airways and causes suffocation, with an effect at concentrations of 2.4 mg / l per minute.
Hydrogen bromide, anhydrous appears as a colorless gas with a pungent irritating odor. Corrosive. Heavier than air. Prolonged exposure to fire or intense heat may result in the violent rupture and rocketing of the container. Long-term exposure to low concentrations or short-term exposure to high concentrations can result in adverse health effects from inhalation. Used to make other chemicals and as a catalyst in the manufacture of chemicals. Rate of onset: Immediate Persistence:
Minutes to hours Odor threshold: 2 ppm Source/use/other hazards: Chemical manufacturing industry; very corrosive.
Hydrobromic acid (HBr)
. A solution of hydrogen bromide gas in water. Bromine atom is a halogen. It has a role as a micronutrient.
Author: Nidelina Petkova