A Conversation for The Effects of Helium on Your Voice
Sulfur Hexafluoride
danshawen Started conversation Jan 29, 2014
Sulfur Hexafluoride has the opposite effect on the voice than helium, giving voices a "Donald Duck" like quality.
Don't try this with Sulfur Tetrafluouride, which is toxic.
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Sulfur Hexafluoride
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