How does Argon gas protect old manuscripts from degradation?
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Argon is a noble gas, which are the elements on the farthest right hand side of the periodic table of elements. Other noble gases include helium and neon. A notable feature about noble gases is that they are very non reactive, so they don’t interact with anything except under extremely rare circumstances. That makes them a great preservative in an enclosed space.
Fun fact: the American National Archives uses argon in the display cases for things like the Constitution. They previously used helium, but it kept leaking out and had to constantly be replaced.
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