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Definition of B5H9
B5H9 is a chemical substance commonly known as Pentaboran(9), and its English name is Pentaborane(9). It is a white, colorless solid with a distinctive smell. B5H9 consists of 5 boron atoms and 9 hydrogen atoms. Its atomic weight is 63.69 g/mol. The B5H9 molecule has a pyramidal structure, with 5 boron atoms forming a triangular pyramid, and 9 hydrogen atoms surrounding. B5H9 does not form ions. -
Properties: B5H9
B5H9 has the following physical properties: it is a solid, colorless, has a distinctive smell and does not have a specific pH value. In terms of chemical properties, B5H9 reacts strongly with air, forming boron trioxide and water. -
Common chemical equation: B5H9
B5H9 can react with metals, acids, nonmetals and salts. However, this reaction is not common and quite complicated, so it is not introduced to high school students. -
Synthesis of B5H9
B5H9 can be synthesized through the reaction between diborane and boron trifluoride in a neutral environment. As the synthesis process is quite complicated and dangerous, it is not performed in school laboratories. The synthesis of B5H9 is usually carried out in professional industrial laboratories.