From: Eugene Ngai <eugene_ngai**At_Symbol_Here**COMCAST.NET>
Subject: [DCHAS-L] Lucky to be Alive
Date: Fri, 20 May 2016 09:59:47 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 06b501d1b29f$e28bc510$a7a34f30$**At_Symbol_Here**

Some of you might have seen a video of a safety demo that I did this week that went terribly wrong. I am ashamed that I ignored some deviations and continued to do my silane demo that I have done many times in the past without incident. With almost 100 people watching I had an uncontrolled silane vent/fire of 1600 psig that torched my Nomex coveralls, hood and faceshield. This 15 sec event seemed like 20 minutes as I desperately tried to shutoff the flow. The 3 ft flame was at the cylinder valve and the radiant heat was intense as I reached for the alternate shutoff valve, I was worried that the aluminum nitrogen purge cylinder was going to explode due to the heat. My PPE saved me from burns. I was fortunate to have turned and ducked as the flames came over my head at one point.

I have been campaigning for silane safety for more than 10 years and yet I ignored some basic rules. 44 years of handling silane under many conditions and still I was so stupid. God saved me for another day

Luck should not be part of the safety program

Eugene Ngai
Chemically Speaking LLC

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