Dear all, my experiment requires the humidity inside the acrylic glovebox to be below 15%. Currently, the humidity is steady at 25% with after purging with nitrogen gas and insertion of silica gel into the glovebox. To prevent any gas leaks at the junctions of the glovebox, I have sealed all of them using silicon sealant. Besides that, I am using a latex glove instead of a neoprene glove which made me thinking whether the material of the glove might affect the humidity as both material has different oxygen permeability. Any opinion to improve the glovebox setup is highly appreciated. Thank you.
Silica gel loses efficiency as a desiccant at lower humidity, and might not be able to get you as low as you want to go. There are other desiccants such as CaO (quicklime), which can work down to about 10% humidity or so. Obviously, you need to take the proper safety precautions when using this, being especially careful of the dust. CaO is also not super-fast, so won't work if your system has leaks. But it sounds like maybe you've taken care of that. Good luck!
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