Southwest Retort, Volume 13, Number 6, February 1961 Page: 2
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When we decided to add the advantages
of Teflon to our PYREXE stopcocks,* we
found we could free you from a number
of the traditional stopcock nuisances sim-
ply by putting the handle on the small
end of the tapered plug.
There is no nut to tighten or strip. The
spring mechanism which holds the plug
to a firm seal is inside the handle. This
method protects the works from any out-
Since the plug itself is Teflon,t you can
work with alkalies or acids without worry
of freezing the plug in place.
The handle removes easily so that you
can take out the plug for cleaning or re-
placement in a matter of seconds.
You can order this new stopcock by
itself in 2mm or 4mm sizes under catalog
No. 7281. No. 6401 Squibb funnels are al-
ready equipped with both sizes. No. 2102
burets have the 2mm stopcock attached.
Ask your dealer to show you this ware.
Or check the new PYREX Labware Cata-
log, LG-2. If you don't already have a
copy of the world's most complete listing
of laboratory glassware, please write and
we'll send you one.
*U. S. Pat. 2876985 tDu Pont Trademark
CORNING GLASS WORKS
6801 Crystal Street, Corning, N.Y.
CORNING MEANS RESEARCH IN GLASS
PYREX laboratory ware ... the tested tool of modern research
Why we rivers te handl
on ou Tefon sopcoks '
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American Chemical Society. Dallas/Fort Worth Section. Southwest Retort, Volume 13, Number 6, February 1961, periodical, February 1961; [Dallas, Texas]. (digital.library.unt.edu/ark:/67531/metadc111077/m1/2/: accessed April 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .