[labnetwork] [EXTERNAL] Re: CHF3 availability?

Thu Mar 12 12:21:44 EDT 2026

I've had good service from

  * https://advancedspecialtygases.com/contact-us/


And I won't comment on Linde's service 🤐


Mario


On 2026-03-11 9:56 p.m., Alex Dixon wrote:
> [*CAUTION:* Non-UBC Email]
>
> Hi Jeff. I was able to get a quote for CHF3 from General Air last week 
> with a 1-2 day lead time.
>
> -Alex
>
> __________________________________________________________
>
>
> Alex Dixon, Ph.D. (He/Him)
> Lab Manager
> Nanofabrication and Thin Film Deposition
> Shared Instrument Facility
> Colorado School of Mines
>
> ------------------------------------------------------------------------
> *From:* labnetwork <labnetwork-bounces at mtl.mit.edu> on behalf of Aamer 
> Mahmood <aamer at uchicago.edu>
> *Sent:* Wednesday, March 11, 2026 10:31 AM
> *To:* Christophe Clément <christophe.clement at polymtl.ca>; Jeff 
> Salzmann <jks7 at buffalo.edu>; Network Fab <labnetwork at mtl.mit.edu>
> *Subject:* [EXTERNAL] Re: [labnetwork] CHF3 availability?
> CAUTION: This email originated from outside of the Colorado School of 
> Mines organization. Do not click on links or open attachments unless 
> you recognize the sender and know the content is safe.
>
> Jeff,
>
> 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.
>
> My contact is:
>
> Kevin Paetsch
>
> Territory Manager – Specialty Gases
>
> kevin.paetsch at linde.com
>
> Cell: 219-742 7479
>
> Best regards,
>
> --
>
> Aamer Mahmood
>
> **
>
> *Executive Director*
>
> *Pritzker Nanofabrication Facility*
>
> *William Eckhardt Research Center*
>
> *University of Chicago*
>
> *5640 S. Ellis Ave., Chicago, IL 60637*
>
> **
>
> *Tel: +1 (773) 702 8903*
>
> *Web: **pnf.uchicago.edu* <http://pnf.uchicago.edu/>**
>
> *From:*labnetwork <labnetwork-bounces at mtl.mit.edu> *On Behalf Of 
> *Christophe Clément
> *Sent:* Tuesday, March 10, 2026 5:12 PM
> *To:* Jeff Salzmann <jks7 at buffalo.edu>; Network Fab 
> <labnetwork at mtl.mit.edu>
> *Subject:* Re: [labnetwork] CHF3 availability?
>
> Hi Jeff
>
> I just purchased an ED cylinder of CHF3 last week from Advanced 
> Speciality Gas, lead time is really short (2 days).
>
> Service from this company is number 1.
>
> Here is the contact information:
>
> *Matt Pearce*
>
> Advanced Specialty Gases
>
> 135 Catron Dr.
>
> Reno, NV. USA  89512
>
> Ph: 775-356-5500
>
> Fax: 775-356-5571
>
> matt at advancedspecialtygases.com <mailto:matt at advancedspecialtygases.com>
>
> www.advancedspecialtygases.com 
> <https://urldefense.com/v3/__http:/www.advancedspecialtygases.com/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQU4-t8bw$>
>
> */Christophe Clément/*
>
> *Professionnel de recherche*
>
> Laboratoire de microfabrication (LMF)
>
> Groupe des Couches Minces (GCM) www. 
> <https://urldefense.com/v3/__http:/www.gcmlab.ca/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQ3QuS2jk$>_polymtl.ca/gcmlab_
>
> Ecole Polytechnique de Montréal www.polymtl.ca 
> <https://urldefense.com/v3/__http:/www.polymtl.ca/__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQrlyxPQU$>
>
> Département de génie physique
>
> *2900 Boulevard Edouard Monpetit
>
> Pavillon JAB
> Campus de l'Université de Montréal
> Montréal (Québec) H3T 1J4
>
>
> 8christophe.clement at polymtl.ca <mailto:christophe.clement at polymtl.ca>
>
> (514 340 4711 #2417
>
> Fax : 514 340 5195
>
> ------------------------------------------------------------------------
>
> *De :*Jeff Salzmann <jks7 at buffalo.edu <mailto:jks7 at buffalo.edu>>
> *Envoyé :* 10 mars 2026 11:37
> *À :* Network Fab <labnetwork at mtl.mit.edu <mailto:labnetwork at mtl.mit.edu>>
> *Objet :* [labnetwork] CHF3 availability?
>
> Good morning,
>
> I am looking to purchase some CHF3 for a new RIE system I am having 
> installed here.
>
> Airgas has informed me that, "Also, note that R-23 as of January 1, 
> 2022, CHF3 (R23) has been identified for Phasedown under the EPA AIM 
> Act 
> (https://www.epa.gov/climate-hfcs-reduction/phasedown-hydrofluorocarbons-hfcs-issuing-allowance-allocations 
> <https://urldefense.com/v3/__https:/www.epa.gov/climate-hfcs-reduction/phasedown-hydrofluorocarbons-hfcs-issuing-allowance-allocations__;!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQ1Wsqirw$>). 
>  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.”
>
> Since that time, I have waited nearly three months for them not to 
> provide a quote.
>
> According to the EPA’s website on HFC “phase down”:
>
> https://www.epa.gov/climate-hfcs-reduction/frequent-questions-phasedown-hydrofluorocarbons#how-allowance-determined 
> <https://urldefense.com/v3/__https:/www.epa.gov/climate-hfcs-reduction/frequent-questions-phasedown-hydrofluorocarbons*how-allowance-determined__;Iw!!BpyFHLRN4TMTrA!_EteJFf70QiK2Zi132YwIokcMFiEKO2qJ8PRSyphQwU-LHNSyEJiWj2ccejwcZ-n_Uy1IrnzDkUblYdM95kNP0oQaQVF0ZU$>
>
> Application-specific Allowances: Through at least 2030, EPA is issuing 
> application-specific allowances to entities that use HFCs in one of 
> four applications:
>
>  1. A propellant in metered dose inhalers (MDIs)
>
>  2. Structural composite preformed polyurethane foam for marine use
>     and trailer use
>
>  3. The etching of semiconductor material or wafers and the cleaning
>     of chemical vapor deposition chambers within the semiconductor
>     manufacturing sector
>
>  4. Onboard aerospace fire suppression
>
> Can anyone offer some guidance to either get the allowance issued or a 
> vendor that can help with this?
>
> Thanks!!!
>
> Jeff
>
> Jeff Salzmann
>
> Research Assistant Professor of Electrical Engineering
>
> Cleanroom Manager, Shared Instrumentation Laboratories
>
> School of Engineering and Applied Sciences
>
> University at Buffalo, 114A Davis Hall
>
> 105 White Road
>
> Buffalo, NY 14260-2500
>
> Tel: 716.645.2584
>
>
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