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3D3DQuicklime Desiccant.
This interesting little desiccant packet came in something I got from China. Most desiccant packets (which are packed up with many products to keep them dry during shipping) are made with silica gel, but this one is made with quicklime (calcium oxide, CaO). The difference is that if you pour water on silica gel it doesn't do much of anything, but if you pour water on quicklime, it becomes so hot it boils the water, producing steam and spitting hot water out.
Source: Theodore Gray
Contributor: Theodore Gray
Acquired: 12 January, 2010
Text Updated: 12 January, 2010
Price: Donated
Size: 3"
Composition: CaO