What is the difference between bromine water, carbon tetrachloride of bromine and liquid bromine?

Bromine water is an aqueous solution of bromine, that is, bromine is soluble in water and is a mixture of water. Carbon tetrachloride solution of bromine is to dissolve bromine in carbon tetrachloride, which is an organic substance, so it is an organic solvent. Liquid bromine is pure bromine, liquid and pure.

2. Different colors:

Bromine water: the solubility of bromine is relatively small, generally orange to light yellow, and the greater the concentration, the darker the color. Liquid bromine: dark reddish brown. Carbon tetrachloride solution of bromine: bromine is orange red or even reddish brown because of its high solubility.

3. Different concentrations:

In concentration, bromine water is less than bromine, and carbon tetrachloride is less than liquid bromine. Because bromine is more soluble in organic solvents, the concentration of bromine in CCl4 solution of bromine is higher, which can be regarded as pure bromine. Because Br2 will react weakly with water, Br2+H2O=HBr+HBrO, so the solute is more complicated.

Extended data:

Liquid bromine storage requirements:

When stored, it should be handled according to the requirements of corrosive and oxidizing reagents. Production units generally add about one-third of distilled water as a protective agent to prevent volatilization. It should be stored separately. Use glass stoppers for storage. Iodine and bromine in halogen elements are easy to decompose, and bromine is the only nonmetallic element, which is liquid and volatile and needs to be isolated with water.

The problem is water. In fact, water reacts with bromine to produce hydrogen bromide and hypobromic acid. Hypobromic acid is unstable and easily decomposed by light. In fact, it is stored in a brown bottle to protect hypobromic acid. From the point of view of chemical balance, the protection of hypobromic acid indirectly protects liquid bromine and slows down the further consumption of liquid bromine.

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