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- Newsgroups: sci.physics.fusion
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!cs.utexas.edu!sun-barr!ames!pacbell.com!tandem!zorch!fusion
- From: Dieter Britz <BRITZ@kemi.aau.dk>
- Subject: RE: Stainless Steel
- Message-ID: <A3CCA246DD5FA02D20@vms2.uni-c.dk>
- Sender: scott@zorch.SF-Bay.ORG (Scott Hazen Mueller)
- Reply-To: Dieter Britz <BRITZ@kemi.aau.dk>
- Organization: Sci.physics.fusion/Mail Gateway
- Date: Mon, 28 Dec 1992 18:01:39 GMT
- Lines: 25
-
-
- Originally-From: ames!FNALD.FNAL.GOV!DROEGE
-
- >Dieter, in my defense, I did look up Stainless Steel in the Cole-Parmet catalog
- >chemical resistance table. They gave it an "A" for Sodium Hydroxide, the
- >closest thing I could find (periodic table wise) to Lithium Hydroxide. "A"
- >means "No effect - Excellent". But I guess there is Excellent and Excellent.
- >In any case, that is why I used it. But the next design will be Teflon, Pd,
- >and Pt.
-
- At the risk of repeating myself, the above is quite correct but it depends on
- your point of view. Clearly, the stainless steel kitchenware we use does its
- job. We have a set we bought when we got married in 1965, still perfectly good
- (Norwegian). But it has undoubtedly been feeding us chromium all that time
- (and Fe, Ni, Mo etc etc). From the point of view of the pots and pans, they
- don't corrode, and would stand NaOH OK, too. In an electrochemical cell,
- though, a few picomoles of these metals dissolving, that wouldn't even take
- the shine off the metal, would settle on the cathode and gum up the works,
- maybe. Or - like the unintended chromium supplement we've been getting - have
- a beneficial effect, maybe, and quite unreproducible.
- Anyway, Tom, good luck with the new run. I'll remember that 35 mW error bar.
- ----------------------------------------------------------------------------
- Dieter Britz alias britz@kemi.aau.dk
- Kemisk Institut, Aarhus Universitet, 8000 Aarhus C, Denmark.
- ----------------------------------------------------------------------------
-