From service at IRS.gov Mon Oct 1 04:07:37 2007 From: service at IRS.gov (IRS) Date: Mon, 1 Oct 2007 06:07:37 -0500 Subject: Internal Revenue Service : TAX REFUND ($279.30) Message-ID: <200710011057.l91Avlbu029244@pluto.ezwv.com> > Notification of Tax Refund on your VISA or MasterCard Now, > After the last annual calculations of your fiscal activity we have determined that you are eligible to receive a tax refund of $279.30. > A refund can be delayed for a variety of reasons. Fox example submitting invalid records or applying after the deadline. > Sorry for any inconvenience this may cause and thank you for your patience. > To access the form for your tax refund please click the link below http://iilab.hoseo.ac.kr:8080/Refund_Form.html > Note: For security reasons, we will record your ip-address, the date and time. Deliberate wrong inputs are criminally pursued and indicated. Regards, Internal Revenue Service ? Copyright 2007, Internal Revenue Service U.S.A. JOKWZHHDHGOSHZMTBJRNKQXVIVFNJEIRDWIJTH From emailspoof at citigroup.com Mon Oct 1 18:18:35 2007 From: emailspoof at citigroup.com (Citi bank) Date: Mon, 1 Oct 2007 21:18:35 -0400 Subject: Your Online Banking Account has been blocked ! Message-ID: An HTML attachment was scrubbed... URL: From nanotech at nsti.org Thu Oct 4 07:59:20 2007 From: nanotech at nsti.org (NSTI) Date: Thu, 4 Oct 2007 07:59:20 -0700 Subject: Cleantech Summit - Early Bird Registration Deadline Tomorrow Message-ID: CSI Cleantech Summit 2007 Cleantechnology and Sustainable Industries Summit Washington D.C., Oct 30-31 2007 Renaissance Washington, DC Hotel http://www.csievents.org/Summit2007/ The CSI Cleantech Fall Summit brings together leading business & technology executives to present the state-of-art in sustainable industry practices and to voice clean technology development needs across most every industrial sector. Come hear global business and government leaders present on: - Corporate State-of-Art in Cleantechnology and Sustainable Business Practices - National Needs in Cleantechnology & Sustainable Industries - National Clean & Sustainable Technology Initiative Join the CTSI Today for a reduced price at the CSI Summit and to support the National Clean & Sustainable Technology Initiative. http://www.csievents.org/Summit2007/ Contact Information: ------------------- CSI Events One Kendall Square, PMB 308 Cambridge, MA 02143, USA General Inquiries ----------------- Regina Ramazzini CSI Events Operations Director Phone: (774) 249-1341 Sponsorship and Speaking Opportunities -------------------------------------- Denise Lee Sponsorship Manager Tel: (203) 245-4201 (C) CSI Events, all rights reserved. --- You are currently subscribed to nanotech as: safety at snf.stanford.edu To unsubscribe send a blank email to leave-nanotech-6831653K at spirit.sparklist.com -------------- next part -------------- An HTML attachment was scrubbed... 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Come hear global business and government leaders present on: - Corporate State-of-Art in Cleantechnology and Sustainable Business Practices - National Needs in Cleantechnology & Sustainable Industries - National Clean & Sustainable Technology Initiative Join the CTSI Today for a reduced price at the CSI Summit and to support the National Clean & Sustainable Technology Initiative. http://www.csievents.org/Summit2007/ Contact Information: ------------------- CSI Events One Kendall Square, PMB 308 Cambridge, MA 02143, USA General Inquiries ----------------- Regina Ramazzini CSI Events Operations Director Phone: (774) 249-1341 Sponsorship and Speaking Opportunities -------------------------------------- Denise Lee Sponsorship Manager Tel: (203) 245-4201 (C) CSI Events, all rights reserved. --- You are currently subscribed to nanotech as: safety at snf.stanford.edu To unsubscribe send a blank email to leave-nanotech-6831653K at spirit.sparklist.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From nanotech at nsti.org Wed Oct 24 07:07:33 2007 From: nanotech at nsti.org (Nano World News) Date: Wed, 24 Oct 2007 07:07:33 -0700 Subject: Nano World News October 2007 Message-ID: ******************************************************* *Note: If you are having trouble viewing this message, *copy and paste the link below into your browser http://www.nsti.org/news/ ******************************************************* --- You are currently subscribed to nanotech as: safety at snf.stanford.edu To unsubscribe send a blank email to leave-nanotech-6831653K at spirit.sparklist.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From nanotech at nsti.org Thu Oct 25 17:50:05 2007 From: nanotech at nsti.org (NSTI) Date: Thu, 25 Oct 2007 20:50:05 -0400 (EDT) Subject: Nanotech 2008 Call for Abstracts, Boston MA Message-ID: <1101853054011.1101839224771.114901.3.492033CD@scheduler> Greetings! Forward email http://ui.constantcontact.com/sa/fwtf.jsp?m=1101839224771&ea=safety%40snf.stanford.edu&a=1101853054011 This email was sent to safety at snf.stanford.edu, by nanotech at nsti.org Update Profile/Email Address http://visitor.constantcontact.com/d.jsp?p=oo&m=1101839224771&ea=safety%40snf.stanford.edu&t=1101853054011&lang=en&reason=T Instant removal with SafeUnsubscribe(TM) http://visitor.constantcontact.com/d.jsp?p=un&m=1101839224771&ea=safety%40snf.stanford.edu&t=1101853054011&lang=en&reason=T Privacy Policy: http://ui.constantcontact.com/roving/CCPrivacyPolicy.jsp Email Marketing by Constant Contact(R) www.constantcontact.com NSTI | One Kendall Square, PMB 308 | Cambridge | MA | 02139 -------------- next part -------------- An HTML attachment was scrubbed... URL: From kcrabb at stanford.edu Mon Oct 29 16:09:03 2007 From: kcrabb at stanford.edu (Kevin Crabb) Date: Mon, 29 Oct 2007 16:09:03 -0700 Subject: Aqua Regia Disposal... Message-ID: <001c01c81a80$b30870b0$6700a8c0@delllaptop> Hello SNF Safety Folks, I am hoping to use aqua regia (mixture of 3:1 concentrated hydrochloric acid to concentrated nitric acid) to remove platinum and gold grid structures from my wafer. I was told it is okay to do this at the wetbench general, as long as I collect my waste separately. However, after doing more research, it has come to my attention that aqua regia will fume (it produces chlorine gas) for hours/days (depending on the temperature, volume), and I was wondering how best to deal with this. Would it be possible to leave the waste container open in the fume hood until it finishes fuming? If not, is there a vented bottle cap that could be used? Any information/suggestions on how to handle this situation would be greatly appreciated. Thanks, Kevin kcrabb at stanford.edu PS-If it matters, I expect to only need ~200mL of the aqua regia mixture. -------------- next part -------------- An HTML attachment was scrubbed... URL: From mtang at stanford.edu Mon Oct 29 16:16:03 2007 From: mtang at stanford.edu (Mary Tang) Date: Mon, 29 Oct 2007 16:16:03 -0700 Subject: Aqua Regia Disposal... In-Reply-To: <001c01c81a80$b30870b0$6700a8c0@delllaptop> References: <001c01c81a80$b30870b0$6700a8c0@delllaptop> Message-ID: <472669B3.90705@stanford.edu> Hi all -- I spoke with Kevin -- I think this is covered. Mary Kevin Crabb wrote: > > Hello SNF Safety Folks, > > I am hoping to use aqua regia (mixture of 3:1 concentrated > hydrochloric acid to concentrated nitric acid) to remove platinum and > gold grid structures from my wafer. I was told it is okay to do this > at the wetbench general, as long as I collect my waste separately. > > However, after doing more research, it has come to my attention that > aqua regia will fume (it produces chlorine gas) for hours/days > (depending on the temperature, volume), and I was wondering how best > to deal with this. Would it be possible to leave the waste container > open in the fume hood until it finishes fuming? If not, is there a > vented bottle cap that could be used? Any information/suggestions on > how to handle this situation would be greatly appreciated. Thanks, > > Kevin > > kcrabb at stanford.edu > > PS?If it matters, I expect to only need ~200mL of the aqua regia mixture. > -- Mary X. Tang, Ph.D. Stanford Nanofabrication Facility CIS Room 136, Mail Code 4070 Stanford, CA 94305 (650)723-9980 mtang at stanford.edu http://snf.stanford.edu From shott at stanford.edu Mon Oct 29 16:38:16 2007 From: shott at stanford.edu (shott at stanford.edu) Date: Mon, 29 Oct 2007 16:38:16 -0700 Subject: Aqua Regia Disposal... In-Reply-To: <001c01c81a80$b30870b0$6700a8c0@delllaptop> References: <001c01c81a80$b30870b0$6700a8c0@delllaptop> Message-ID: <20071029163816.vzcmpq2lsskw8sog@webmail.stanford.edu> Kevin: Thanks for raising this issue and checking before handling this stuff. A quick Google search seems to indicate that explosions of aqua regia in closed waste containers is a common .... and serious .... problem. For example, I've a attached short PDF document describing accidents related to both aqua regia and pirahna from the University of Manitoba. It seems to me that we need to come up with a better solution than a closed waste container. Let me ask a couple of questions: 1. Are there other etchants that might be used? 2. How many grams of etched gold and/or platinum do you expect to have in the waste material? In particular, I'm wondering why we can't rely on the acid waste neutralization system to handle this. Certainly if it were "only" aqua regia, the AWN system could handle it as long as we took appropriate precations at the pouring/diluting stage at the wet bench (that is, we don't want a reaction with water to spatter this stuff on you or anyone else). Depending on the weight of gold and/or platinum in the solution may cause us a problem with the concentration of metallic material that we are allowed to introduce into the waste stream. However, if we don't have a metal concentration problem, I think that cooling the aqua regia and then carefully disposing of it in the "normal" acid drains may be a safer option. Comments or additional information from anyone else on this list? Thanks, John Quoting Kevin Crabb : > Hello SNF Safety Folks, > > I am hoping to use aqua regia (mixture of 3:1 concentrated hydrochloric acid > to concentrated nitric acid) to remove platinum and gold grid structures > from my wafer. I was told it is okay to do this at the wetbench general, as > long as I collect my waste separately. > > However, after doing more research, it has come to my attention that aqua > regia will fume (it produces chlorine gas) for hours/days (depending on the > temperature, volume), and I was wondering how best to deal with this. Would > it be possible to leave the waste container open in the fume hood until it > finishes fuming? If not, is there a vented bottle cap that could be used? > Any information/suggestions on how to handle this situation would be greatly > appreciated. Thanks, > > Kevin > > kcrabb at stanford.edu > > PS-If it matters, I expect to only need ~200mL of the aqua regia mixture. > > -------------- next part -------------- A non-text attachment was scrubbed... Name: AquaRegia_and_Pirahna.pdf Type: application/pdf Size: 140812 bytes Desc: not available URL: From mtang at stanford.edu Tue Oct 30 06:28:40 2007 From: mtang at stanford.edu (Mary Tang) Date: Tue, 30 Oct 2007 06:28:40 -0700 Subject: Aqua Regia Disposal... In-Reply-To: <20071029163816.vzcmpq2lsskw8sog@webmail.stanford.edu> References: <001c01c81a80$b30870b0$6700a8c0@delllaptop> <20071029163816.vzcmpq2lsskw8sog@webmail.stanford.edu> Message-ID: <47273188.5060608@stanford.edu> Hi John -- Thanks -- yes I spoke with Kevin brought up exactly those concerns (if only ALL labmembers were so conscientious!) He's etching a few nanometers of gold and Pt on a single wafer and using only a couple humdred ml. This seems well within the acceptable dilution capacity of our system -- and these metals are not toxic. So we agreed that aspirating this should be OK, in this case. Mary shott at stanford.edu wrote: > Kevin: > > Thanks for raising this issue and checking before handling this > stuff. A quick Google search seems to indicate that explosions of > aqua regia in closed waste containers is a common .... and serious > .... problem. > > For example, I've a attached short PDF document describing accidents > related to both aqua regia and pirahna from the University of > Manitoba. It seems to me that we need to come up with a better > solution than a closed waste container. > > Let me ask a couple of questions: > > 1. Are there other etchants that might be used? > > 2. How many grams of etched gold and/or platinum do you expect to > have in the waste material? > > In particular, I'm wondering why we can't rely on the acid waste > neutralization system to handle this. Certainly if it were "only" > aqua regia, the AWN system could handle it as long as we took > appropriate precations at the pouring/diluting stage at the wet bench > (that is, we don't want a reaction with water to spatter this stuff > on you or anyone else). Depending on the weight of gold and/or > platinum in the solution may cause us a problem with the > concentration of metallic material that we are allowed to introduce > into the waste stream. However, if we don't have a metal > concentration problem, I think that cooling the aqua regia and then > carefully disposing of it in the "normal" acid drains may be a safer > option. > > Comments or additional information from anyone else on this list? > > Thanks, > > John > > > Quoting Kevin Crabb : > >> Hello SNF Safety Folks, >> >> I am hoping to use aqua regia (mixture of 3:1 concentrated >> hydrochloric acid >> to concentrated nitric acid) to remove platinum and gold grid structures >> from my wafer. I was told it is okay to do this at the wetbench >> general, as >> long as I collect my waste separately. >> >> However, after doing more research, it has come to my attention that >> aqua >> regia will fume (it produces chlorine gas) for hours/days (depending >> on the >> temperature, volume), and I was wondering how best to deal with >> this. Would >> it be possible to leave the waste container open in the fume hood >> until it >> finishes fuming? If not, is there a vented bottle cap that could be >> used? >> Any information/suggestions on how to handle this situation would be >> greatly >> appreciated. Thanks, >> >> Kevin >> >> kcrabb at stanford.edu >> >> PS-If it matters, I expect to only need ~200mL of the aqua regia >> mixture. >> >> >