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Re: [BKARTS] WOW! -- Cleaning Book Covers with Dry Ice

Actually it is usually captured as a by product of petroleum refining or the making of ammonia. While theoretically it could be made from atmospheric CO2 the process is too costly.
Huge quantities of energy are also expended liquefying it in order to make dry ice, another wasting of natural resources.

Beddall Bookbinding Conservation & Restoration
840 Snowdrop Ave. Victoria BC V8Z 2N4
(250)888-9380    http://www.Bookbinder.ca

Chad Longley wrote:
It will have no effect on global warming since dry ice is typically
manufactured from captured atmospheric CO2.

Chad Longley

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