Message:

<p>[QUOTE=&quot;desertgem, post: 1554500, member: 15199&quot;]I certainly don&#039;t have any problems about the silica gel packs ( unless they contain the cobalt compounds ( toxic) to indicate saturation) and they can be heated to drive off the water.&nbsp; I don&#039;t know how much silica is actually inside the $10 paks or how much actual water they can absorb. Silica gel does not liquify like the saturated calcium chloride , but this is a very good indicator of need to replace. Also repeated saturation and drying of silica gel can cause the silicon dioxide material to fracture and become quartz dust which has a hardness of 7 Moh scale compared to about 2 for calcium chloride. So both materials would need good sealing so neither material got to the coins directly.</p><p><br /></p><p>I haven&#039;t seen neither calcium chloride , calcium sulfate, or silica gel at about 10 cents an ounce and readily available before. Sometimes in very moist weather, I have thought of dehumidifying the air going into my central return, so that is where I will use these first. </p><p><br /></p><p>I guess I should warn not to eat the pellets ( although they should be safe), they are from China, and also could dehydrate your intestinal tract and cause constipation or blockage in people with less than normal water intake and/or low motility bowels)</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in