Craig
There are many. However, I'd like to warn you against some of the
non-ionic polyethoxylates (heptyl-, octyl- nonyl- etc.), whether linear
or cyclic, especially as a component of water-soluble fluxes. These
biodegrade rapidly but form an extremely persistent series of virtually
unbiodegradable by-products which are highly toxic to aquatic life. The
sale of such surfactants is regulated in some countries but things like
fluxes which contain them are available.
Best regards,
Brian
Craig Hillman wrote:
>
> Hello Technetter,
>
> Quick question: What are some of the common chemicals used as wetting
> agents/surfactants in fluxes?
>
> Thanks for your help,
> Craig
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of Furrow, Robert Gordon
> (Bob)
> Sent: Wednesday, August 15, 2001 2:31 PM
> To: [log in to unmask]
> Subject: [TN] FMA Labs in Northeast US
>
> Hi All,
>
> With the drastic reduction occurring here at Lucent, I am going to be
> without the services of our Evaluation / FMA Lab in Princeton for (at the
> very least) the period it takes to relocate it. At the worst, it could be
> shut down altogether. I am looking for another source to do the testing of
> PWB's and Backplanes for conformance to our specifications and reliability
> needs. This testing includes cross-sectioning with analysis, XRF, thermal
> shock, pull tests, solderability evaluation, SIR/EM, SEM/EDX, and also FMA
> of assembled boards. Ideally, I am looking for someone within driving
> distance so that I can easily foster the relationship. However, I am open to
> any viable suggestions. If this is a testimonial from users please respond
> via the TechNet. If this is a lab promoting its capabilities, please contact
> me directly at [log in to unmask] Thanks in advance for everyone's input.
>
> P.S. I am also looking for a lab to provide me the direction, insight,
> foresight, enthusiasm, and overall experience that George Wenger at our
> Princeton Lab has provided me.
>
> Thanks,
> Robert Furrow
> Printed Wiring Board Engineer
> Strategic Supply Global Account Manager
> Supply Chain Networks
> Lucent Technologies
> 978-960-3224 [log in to unmask]
>
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