Laser Safety Glasses - Tutorial & Demonstration
Glasses are from Dragonlasers at http://www.dragonlasers.com A tutorial on how laser safety glasses can mind against high power lasers and unperturbed demonstrations. http://www.dragonlasers.com
The Value of Good Eyeware
When I first skim this article discussing lab accidents, I couldn’t resist but feel lucky that I have never been really gripe in the lab. I’ve only been involved in one serious accident – an mischance which only occurred because of a momentary lapse in caution. I try to remember that incident every time I withstand like taking a shortcut with regards to safety. Then I infer from this blog post which discusses the hazards of diazomethane and it reminded me so much of my “affair” that I decided to describe what happened.
I was preparing some molybdenum go together whose name I cannot recall using some reagents which I no longer commemorate. (The experiment was such a flop, I apparently never recorded the details anywhere) The only fashion I recall is that one of the reagents was an organic azide (or something very alike resemble). I knew about its tendency to rave and so I was very careful for 99.9% of the synthesis. I followed the prep to the sic, using inert atmosphere techniques, and dutifully wore my safety goggles throughout. After filtering the irrevocable product, which should have been very inert, I was disappointed to see only a thin layer of reddish brown material on the frit. I took the glassware aside and tried to get a closer look, but there was so undersized material left on the frit that seeing it was awkward with smudged goggles. Since the reaction was over and no one else was doing anything close-knit to my bench, I foolishly removed my goggles for a larger look. Bending down so that my eyes were standing with the frit, about a foot or 2 away, I tolerant of a spatula to scrape the material away from the frit. The only lesson was the appearance of a spark followed straightaway by the detonation. Except for a minor abrasion to one of my corneas, I was utterly unscathed. The glassware, however, was another story. The top 6 inches of the binoculars frit had been totally obliterated. No pieces were ever found, but the benchtop was covered with all right glass powder. To say...
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