What gas makes your voice deeper?


Quick Answer

Sulfur hexafluoride has the ability to deepen voices and is hailed as the anti-helium. Sulfur hexafluoride is man-made and commonly released from power stations and magnesium smelters.

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Full Answer

Sulfur hexafluoride has such an effect on the voice because of its density in comparison with air. Whereas helium is lighter than air, sulfur hexafluoride is about five times heavier and is one of the heaviest gases. A pure gas, it is nontoxic, unreactive and nonflammable. However, it is usually in a mixture containing other impurities that could be damaging to human health if inhaled. Sulfur hexafluoride in the atmosphere can remain for thousands of years.

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