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Analytical Chemistry

Periodic graphics: The chemistry of dry cleaning

Chemical educator and Compound Interest blogger Andy Brunning cycles through the chemistry used to wash our delicates

by Andy Brunning
November 13, 2017 | APPEARED IN VOLUME 95, ISSUE 45
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Comments
dennis mac caskie (November 15, 2017 1:53 PM)
you might also note that hydrocarbon mixtures are and continue to be used as alternatives to PCE. Stoddard solvent was developed for that purpose in 1928 and the modern equivalent is Green Earth 2000.
Ian Jamie (November 15, 2017 5:11 PM)
Green Earth 2000 is decamethylclopentasiloxane, one of the siloxanes mention in the graphic as an alternative to "perc".
Paul E. Eckler (November 15, 2017 2:56 PM)
A little known tidbit. Because many forms of dirt dissolve in water, small amounts of water are often present in dry cleaning fluids. The "soap" (or surfactant) used helps stabilize this water as an invert emulsion.
Tom Farrell (November 16, 2017 2:02 PM)
It is not clear to me how PVA/Elmer’s glue fits into this discussion. Would you please explain further? Thanks

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