In fact, not only oranges, but also oranges, lemons and grapefruit. It smells good, because its skin contains a certain amount of lipids and is also an essential oil. This essential oil can dissolve the rubber on the surface of the balloon, causing an expansion reaction, so that the contact part will become thinner, then the pressure it bears will increase, and the balloon will explode at this time.
In short, there is an aromatic oil substance in the water squeezed from the orange peel. This substance can dissolve rubber. The balloon is made of rubber, so it will explode when it expands. Orange peel has many dense pores. This is the oil gland of fruit. It contains an aromatic hydrocarbon called lithium ene, which belongs to the category of organic solvents. The main materials of balloons are polymer organic compounds of latex and rubber, which are rich in latex. According to the "similar mixing principle" in chemistry, two kinds of organic substances can be dissolved in each other when they contact. The aromatic hydrocarbon of limonene in peel juice is equivalent to solvent, and latex in balloon acts as solute. When they meet, limonene will dissolve the latex, which will make the balloon surface thinner. Balloon can bear less pressure, which leads to explosion.
Balloon explosion may hurt people, generally speaking, it is not very serious, but the force of hydrogen balloon explosion is still relatively large. Balloon bursts because the internal pressure is higher than the external pressure, but don't be scared by this pressure. Because the pressure is not high, the energy of the balloon is not high. When the explosion happened, the compressed gas began to act in the air. Fragments do not rotate at high speed and are light in weight. Because hydrogen is flammable and explosive, it will not react when mixed with oxygen at room temperature. However, when hydrogen and air are mixed in a closed space, the hydrogen content ranges from 4% to 76%. During the spark reaction, the generated heat cannot be discharged, and the pressure expansion increases sharply, causing an explosion.