Hi folks - Here is the Friday Element Quiz Answer: The Question This element has its widest use in catalytic converters for cars where its main function is to reduce NOx gases. This element is also used in jewelry and oxidation resistant switch contacts. Which element is being described? The Answer: The element is Rhodium (Rh). Rhodium was discovered in 1803 by William Wollaston. Automobile catalytic converters contain Pt, Pd and Rh. The Pt and Pd accomplish the reduction of unburned hydrocarbons and CO in the exhaust gas while Rh reduces the NOX gases to N2 and O2. There is nearly five times the amount of Pt and Pd in contrast to Rh in a catalytic converter. At the optimum temperature of 400-600C, Rh, Pd and Pt convert approximately 90% of the exhaust pollutants to H2O, O2 and N2. And as many folks pointed out, the quantity of these precious metals in a converter has made them targets for theft. The winner is Graham Collins of L3 Communications with a whole herd of folks closely on his heels once everyone re-read the element clues. Clumpy and Kloumpios will head for Canada asap. So far they have: Week 1 Lamar Young, SCS Coatings - accomplished nothing (drank lots of coffee) Week 2 Bev Christian, RIM - conducted REACH material testing Week 3 Drew Meyer, Benchmark Electronics Inc. - Solderability testing and mowed the lawn Week 4 Ian Fox, Goodrich - had an epic journey of travel Week 4 Gary Ferrari, Garrick Global - unknown Week 5 Fredrick Miller, Astrolab - unknown Week 6 David Nelson, Raytheon - Was a tackling dummy for Dallas Cowboys Week 7 Graham Collins, L3 Communications - Cleaned gutters and painted window trim Week 8 Bill Noel, ITT Geospatial Systems Division - unknown Week 9 Steve Gregory of RD Circuits - unknown Week 10 David Bealer of Watchfire Signs - descaled the in-line wash machine! Ouch! Week 11 Dick Krug of Sparton Corporation - assisted with AS9100 quality management systems requirements audit Week 12 Steve Creswick of Balanced Enterprise Solutions - Acted as Steve's "go fer" due to a broken leg! Week 13 Gebhard Neifer, Delphi - conducted a plasma pre treatment Taguchi DOE for a sealing process Week 14 Bev Christian, RIM - assisted with a tin pest investigation/test Week 15 Bev Christian, RIM - assisted Bev shoveling snow Week 16 David Bealer of Waatchfire Signs - unknown Week 17 Brian Ellis, rumored to be retired - assisted with rewiring the house, had a tractor accident and found his cousin Kloumpios Week 18 Denny Fritz, SAIC - assisted with tin whisker inspection/examinations Week 19 Graham Collins, L3 Communications - assisted with ??????? Dave Hillman Rockwell Collins [log in to unmask] ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------