Report a Site
18 - Argon
dasargon
2011-11-09 15:33:30
The U.S. Constitution and Declaration of Independence are displayed at the National Archives Building, stored in argon-filled cases. The inert gas protects the documents from the degradation caused by air and moisture. While other group 18 elements would provide the same protection, argon is the most abundant of the noble gases, and doesn't leak as easily as helium.
(3)
Please note that this tool is for reporting sites which are against our terms of service. If your complaint has to do with a copyright or personal issue please see our page and asset removal instructions. Misusing this tool may result in account suspension or deletion.