What is B4P4? Important knowledge about B4P4.

Dear students, in today’s lesson, we are going to explore an interesting chemical compound, that is B₄P₄ – Black Phosphorus.

1. Definition of B₄P₄
   B₄P₄, also known as Black Phosphorus, is a compound of boron and phosphorus with a atomic ratio of 1:1. Its atomic mass is 108.95 amu. The molecular structure of B₄P₄ is formed from 4 boron atoms and 4 phosphorus atoms linked together. They form an 8-atom ring system. The ionic structure of B₄P₄ is also very special, it does not easily form ions because its ionization energy is quite high.

2. Properties of B₄P₄
   B₄P₄ is a solid, colorless, odorless compound with a neutral PH level. The chemical properties of B₄P₄ include its oxidizing properties, its ability to form compounds with metals, acids, and non-metals.

3. Common chemical equations involving B₄P₄
   B₄P₄ can react with metals to form boride compounds, for example:
   B₄P₄ + 3Mg -> –> 2 Mg₃P₂ + 2B ->
   B₄P₄ can also react with acids, non-metals, but this is not covered in this lesson.

4. Synthesis of B₄P₄
   B₄P₄ can be synthesized from the reaction between boron and phosphorus at high temperatures. In the laboratory, we can synthesize B₄P₄ by reacting boron with red phosphorus at a temperature of 1100 degrees C. Industrially, B₄P₄ is synthesized by reacting boron with white phosphorus in an air environment, at a temperature of 1200 degrees C.

I hope that through today’s lecture, you have grasped the basic knowledge about B₄P₄ – a very important chemical compound in life and industry.