Helium is colorless, odorless, inert and flame retardant, and lighter than air. An important application is to fill the balloon as a filling gas as a safe balloon that can be lifted into the sky.
The specific gravity of helium under normal environmental conditions is about 0.18 kg/m3, and the theoretical buoyancy is about 1 gram per liter. When using a helium balloon, enough buoyancy guarantees that the balloon and accessories can rise, and each liter of helium can actually raise a weight of 0.5 to 0.6 grams. The balloon inflation is calculated as follows: V(L) = (0.524/1000) x (d(cm))3. d represents the diameter of the balloon and V represents the volume of the inflation. If a balloon with a diameter of 30 cm can be used to charge 14.1 L of gas, it can raise a weight of about 7 to 8.5 grams. Please find out more about the link.
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