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<p class="MsoNormal">Jeff,<o:p></o:p></p>
<p class="MsoNormal">We had to purchase CHF3 in October 2025 and faced the same supply issue with Airgas, our traditional supplier. Fortunately, Linde were able to provide us at a very reasonable price and with a 4-6 week lead time.<o:p></o:p></p>
<p class="MsoNormal">My contact is:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kevin Paetsch<o:p></o:p></p>
<p class="MsoNormal">Territory Manager – Specialty Gases<o:p></o:p></p>
<p class="MsoNormal">kevin.paetsch@linde.com<o:p></o:p></p>
<p class="MsoNormal">Cell: 219-742 7479<o:p></o:p></p>
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<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">--<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">Aamer Mahmood<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Executive Director<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Pritzker Nanofabrication Facility<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual">William Eckhardt Research Center<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual">University of Chicago<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual">5640 S. Ellis Ave., Chicago, IL 60637<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Tel: +1 (773) 702 8903<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Web:
</span></b><a href="pnf.uchicago.edu"><b><span style="font-size:11.0pt;color:#467886;mso-ligatures:standardcontextual">pnf.uchicago.edu</span></b></a><b><span style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p></o:p></span></b></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> labnetwork <labnetwork-bounces@mtl.mit.edu>
<b>On Behalf Of </b>Christophe Clément<br>
<b>Sent:</b> Tuesday, March 10, 2026 5:12 PM<br>
<b>To:</b> Jeff Salzmann <jks7@buffalo.edu>; Network Fab <labnetwork@mtl.mit.edu><br>
<b>Subject:</b> Re: [labnetwork] CHF3 availability?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:#174E86">Hi Jeff<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#174E86">I just purchased an ED cylinder of CHF3 last week from Advanced Speciality Gas, lead time is really short (2 days).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#174E86">Service from this company is number 1.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#174E86"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#174E86">Here is the contact information:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#174E86"><o:p> </o:p></span></p>
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<p class="elementtoproof" style="background:white"><b><span style="font-size:16.0pt;font-family:"Arial",sans-serif;color:#1F497D">Matt Pearce</span></b><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:14.0pt;font-family:"Arial",sans-serif;color:#1F497D">Advanced Specialty Gases</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-family:"Arial",sans-serif;color:#1F497D">135 Catron Dr.</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-family:"Arial",sans-serif;color:#1F497D">Reno, NV. USA 89512</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-family:"Arial",sans-serif;color:#1F497D">Ph: 775-356-5500</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-family:"Arial",sans-serif;color:#1F497D">Fax: 775-356-5571</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><a href="mailto:matt@advancedspecialtygases.com" title="mailto:matt@advancedspecialtygases.com"><span style="font-family:"Arial",sans-serif;color:#467886">matt@advancedspecialtygases.com</span></a><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><a href="https://urldefense.com/v3/__http:/www.advancedspecialtygases.com/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQU4-t8bw$" title="http://www.advancedspecialtygases.com/"><span style="font-family:"Arial",sans-serif">www.advancedspecialtygases.com</span></a><o:p></o:p></p>
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<p class="elementtoproof" style="background:white"><span style="font-size:11.0pt;color:#242424"> </span><span style="color:#174E86"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#174E86"><o:p> </o:p></span></p>
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<p class="elementtoproof" style="background:white"><b><i><span style="font-family:"Arial",sans-serif;color:#1F497D">Christophe Clément</span></i></b><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:gray">Professionnel de recherche</span></b><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">Laboratoire de microfabrication (LMF)</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">Groupe des Couches Minces (GCM)
</span><span style="color:black"><a href="https://urldefense.com/v3/__http:/www.gcmlab.ca/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQ3QuS2jk$"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#0563C1">www.</span></a></span><u><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#0563C1">polymtl.ca/gcmlab</span></u><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">Ecole Polytechnique de Montréal
</span><span style="color:black"><a href="https://urldefense.com/v3/__http:/www.polymtl.ca/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQrlyxPQU$"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">www.polymtl.ca</span></a></span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">Département de génie physique</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:10.0pt;font-family:Wingdings;color:#1F497D">*</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#333333"> </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">2900
Boulevard Edouard Monpetit</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">Pavillon JAB<br>
Campus de l'Université de Montréal<br>
Montréal (Québec) H3T 1J4</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray"><br>
</span><span style="font-size:10.0pt;font-family:Wingdings;color:#1F497D">8</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#333333"> </span><span style="color:black"><a href="mailto:christophe.clement@polymtl.ca"><span style="font-size:8.0pt;font-family:"Arial",sans-serif">christophe.clement@polymtl.ca</span></a></span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:10.0pt;font-family:Wingdings;color:#1F497D">(</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#333333"> </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">514
340 4711 #2417</span><o:p></o:p></p>
<p class="elementtoproof" style="background:white"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">Fax : 514 340 5195</span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">De :</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> Jeff Salzmann <</span><a href="mailto:jks7@buffalo.edu"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">jks7@buffalo.edu</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">><br>
<b>Envoyé :</b> 10 mars 2026 11:37<br>
<b>À :</b> Network Fab <</span><a href="mailto:labnetwork@mtl.mit.edu"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">labnetwork@mtl.mit.edu</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">><br>
<b>Objet :</b> [labnetwork] CHF3 availability?</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="color:black">Good morning,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">I am looking to purchase some CHF3 for a new RIE system I am having installed here.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Airgas has informed me that, "Also, note that R-23 as of January 1, 2022, CHF3 (R23) has been identified for Phasedown under the EPA AIM Act (</span><a href="https://urldefense.com/v3/__https:/www.epa.gov/climate-hfcs-reduction/phasedown-hydrofluorocarbons-hfcs-issuing-allowance-allocations__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQ1Wsqirw$">https://www.epa.gov/climate-hfcs-reduction/phasedown-hydrofluorocarbons-hfcs-issuing-allowance-allocations</a><span style="color:black">
). The customer will either need to provide us with an allotment from the EPA (in MTeV's) in order to supply, or we can purchase MTeV's on the open market for a significantly higher cost.”<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Since that time, I have waited nearly three months for them not to provide a quote.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">According to the EPA’s website on HFC “phase down”:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><a href="https://urldefense.com/v3/__https:/www.epa.gov/climate-hfcs-reduction/frequent-questions-phasedown-hydrofluorocarbons*how-allowance-determined__;Iw!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQaQVF0ZU$">https://www.epa.gov/climate-hfcs-reduction/frequent-questions-phasedown-hydrofluorocarbons#how-allowance-determined</a><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Application-specific Allowances: Through at least 2030, EPA is issuing application-specific allowances to entities that use HFCs in one of four applications:<o:p></o:p></span></p>
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A propellant in metered dose inhalers (MDIs)<o:p></o:p></li></ol>
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Structural composite preformed polyurethane foam for marine use and trailer use<o:p></o:p></li></ol>
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The etching of semiconductor material or wafers and the cleaning of chemical vapor deposition chambers within the semiconductor manufacturing sector<o:p></o:p></li></ol>
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Onboard aerospace fire suppression<o:p></o:p></li></ol>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Can anyone offer some guidance to either get the allowance issued or a vendor that can help with this?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Thanks!!!<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Jeff<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<div id="x_ms-outlook-mobile-signature">
<p class="xmsonormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Jeff Salzmann</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Research Assistant Professor of Electrical Engineering</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Cleanroom Manager, Shared Instrumentation Laboratories</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">School of Engineering and Applied Sciences</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">University at Buffalo, 114A Davis Hall</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">105 White Road</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Buffalo, NY 14260-2500</span><o:p></o:p></p>
<p class="xmsonormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Tel: 716.645.2584</span><o:p></o:p></p>
<p class="xmsonormal"> <o:p></o:p></p>
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