Bromobenzene Mp
Bromobenzene
One evening, I wanted to make something, and bromobenzene was the first. Then I took a round-bottomed flask and placed it on an iron frame. Its shape is like a hanging gall, and it stands firmly. A little iron filings enter, and the iron filings are dark and firm in color, which is the medium for reaction.
Compound with a liquid separation funnel to hold bromine, which is red-brown in bromine color, thick and strong in nature, and slowly drips into the bottle. At first, bromine touches iron filings, and there seems to be a slight cry. Suddenly, the reaction gradually increases, and the bottle rolls like a hidden thunder, and bromine gas overflows. The color is red-brown, and the pungent smell is about to vomit.
Quickly connect to the condenser, which is shaped like a snake, and cold water enters from the bottom and comes out A catheter is also used to pass through the conical bottle, which contains a silver nitrate solution. Soon, the solution becomes muddy and there is a light yellow precipitate. This is the sign of the interaction between hydrogen bromide and silver nitrate, and it is known that hydrogen bromide has been produced.
At the end of the reaction in the bottle, the product bromobenzene sinks at the bottom of the bottle, with a brown and oily color. Wash it with a sodium hydroxide solution to remove the unreacted bromine. When bromine encounters alkali, it is like a soldier encountering a good general, and it dissolves smoothly. After separation and distillation, pure bromobenzene is obtained, and the color is clarified, like the red water on an autumn night, smelling it, and the gas is specific.
The method of making bromobenzene, although it needs to be handled with caution, but if you follow it, you will eventually get what you need. For chemists, this is a crucial skill.
