Traditional Culture Encyclopedia - Travel guide - What gas is in the balloon?

What gas is in the balloon?

Hydrogen.

Hydrogen gas is inside the hydrogen balloon. Hydrogen gas can make the hydrogen balloon buoyant and float upward. It is an extremely flammable, colorless, transparent, odorless and tasteless gas that is difficult to dissolve in water. It is a relatively small gas in life. Large hydrogen balloons are generally used for children's toys and for celebrations, while larger hydrogen balloons are often used for floating advertising banners.