What is As4Se9? Important knowledge about As4Se9.

As₄Se₉ is also known as Arsenic (IV) Selenide or Arsenic Selenide in English. As₄Se₉ is a type of non-metal compound, consisting of 4 atoms of Arsenic (As) and 9 atoms of Selenium (Se). This indicates that the structure of the As₄Se₉ molecule is quite complex. The molecular weight of As₄Se₉ is 988.36 g/mol. Moreover, due to its relatively complex molecular structure, As₄Se₉ does not form simple ions.

As₄Se₉ has many characteristic properties. Physical properties: As₄Se₉ is solid, black, odorless, insoluble in water, and its pH is not determinable. Chemical properties: As₄Se₉ is stable with normal temperature and pressure, does not react with air, water, is insoluble in acids and bases.

As₄Se₉ does not often participate in common chemical reactions, so there are not many examples of its reactions with metals, acids, non-metals, or salts.

In terms of As₄Se₉ synthesis, it is typically synthesized directly from the elements As and Se.
4.1 Laboratory synthesis: Arsenic and Selenium are heated in a glass tube, where both elements will react with each other to form As₄Se₉.
4.2 Industrial synthesis: In industry, As₄Se₉ is produced by burning Arsenic and Selenium in a furnace at high temperatures.