Hydrobromic Acid 48% Free Sample Product Basic Info
Chemical NameHydrobromic Acid
Synonymshydrogen bromide
CAS No.10035-10-6
Molecular FormulaHBr
Molecular Weight80.91190
PSA0.00000
LogP0.95810
Technical Date Sheet锛?/strong>
ItemSpecification
Industrial gradeBest grade
AppearanceColorless or light yellow liquid
Content鈮?8.0 %鈮?8.0 %
Chloride鈮?.5 %鈮?.2 %
Sulphate鈮?00ppm鈮?00ppm
Heavy metal锛坅s Pb锛?/p>鈮?00ppm鈮?0ppm
Packing300kg per drum
UseMainly used in the manufacture of various bromine compounds, also can be used in medicine, dyes, spices and other industries.
Synthesis
Hydrobromic acid can be prepared in the laboratory via the reaction of Br2, SO2, and water.
Br2 + SO2 + 2 H2O 鈫?H2SO4 + 2 HBr
More typically laboratory preparations involve the production of anhydrous HBr, which is then dissolved in water.
Hydrobromic acid has commonly been prepared industrially by reacting bromine with either sulfur or phosphorus and water. However, it can also be produced electrolytically.[3] It can also be prepared by treating bromides with non-oxidising acids like phosphoric or acetic acids.
Alternatively the acid can be prepared with dilute (5.8M) sulfuric acid and potassium bromide:
H2SO4 + KBr 鈫?KHSO4 + HBr
Using more concentrated sulfuric acid or allowing the reaction solution to exceed 75 掳C further oxidizes HBr to bromine gas. The acid is further purified by filtering out the KHSO4 and by distilling off the water until the solution reaches an azeotrope (鈮?126 掳C at 760 torr). The yield is approximately 85%.
Hydrobromic acid is available commercially in various concentrations and purities.Hydrobromic Acid 48% Free Sample
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