[labnetwork] Deuterated Silane detection

[Collins, Deon]

DOD offers an electrochemical detection system. I believe your suspicions are correct and the SiD4 will has some level of cross detection and will probably be very close SiH4.   We use PS-7's with assorted electrochemical cartridges in different areas for different materials. We have 86 of these units deployed within our facility. I have used the chart attached for detection purposes when I don't have the Propper cartridges available in my mobile detection units.

Deon D. Collins

FACILITY MANAGER
The Grainger College Of Engineering UIUC
Holonyak Micro & Nanotechnology Lab
208 N Wright St Rm. 1114 | MC-249
Urbana, IL 61801
217-300-7531 | deonc69 at illinois.edu<mailto:deonc69 at illinois.edu>


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From: labnetwork <labnetwork-bounces at mtl.mit.edu> On Behalf Of Owain Clark
Sent: Tuesday, October 3, 2023 7:50 AM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Deuterated Silane detection

Dear all, our researchers wish to add a SiD4 (Deuterated silane) line to the facility. Looking at the gas properties it is unsurprisingly incredibly similar to SiH4 as one might expect. And therefore one might also suspect that a SiH4 gas detection head would have near 100% cross sensitivity to it. However our gas detection system provider (Drager, polytron heads) cannot confirm this and has no data on the subject. Our safety staff are unsurprisingly not keen to proceed on the basis of "it should work".

Does anyone run this gas in their facility and if so would you mind sharing information on your detection system for it? Or if anyone knows of a company that can fabricate a 4-20mA capable gas detection head pre-calibrated for it? Or as a 3rd line of inquiry if anyone knows of a service whereby one of our SiH4 standard polytron heads could be cross-calibrated against SiD4 empirically that would also be of interest.

BR, Owain
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