HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
William K.
User Rank
Platinum
Microgram madness, or monstrous metallic mercury
William K.   5/3/2013 11:53:48 PM
NO RATINGS
So, what is the concentration of mercury vapor in ten cubic feet of air near where a single CFL device has been broken ? and where in the lamps does this 3 micrograms reside in the lamp, and why would it be in a vapor form at normal room temperatures? My observation of the broken lamps that I have seen is that there are quite large chunks and a few small slivers. I know that the slivers can be nasty and sharp, but clearly most of the white stuff is still in the glass. So where does all of this huge cloud of mercury vapor come from?

OF course it is best to avoid breaking the lamps, but this writeup seems to be intent on arousing hysteria and fomenting panic. If we went back to using candels for light the big hazard would be setting fires, which are probably a lot more dangerous.

I am not advocating stupidity, and I would never allow children to play with broken lights, but the whole tone of the article seems inappropriate for an intellectual publication such as Design News.

Cabe Atwell
User Rank
Blogger
Re: Mercury replacement
Cabe Atwell   5/3/2013 3:24:16 PM
NO RATINGS
I'm with TJ on this, time to go LED. There are plenty of LED solutions much brighter than FL and CFL is the same size category.

However, I wish I had this tech when I watched one of my ceiling CFLs spark and expel fumes for a few minutes.

C

AnandY
User Rank
Gold
Mercury replacement
AnandY   5/3/2013 7:41:14 AM
NO RATINGS
It is considered a persistent bioaccumulative toxic chemical as it does not degrade in the environment.

Todd, thanks for this informative post. Till now I thought glass pieces of broken bulb are dangerous, but mercury inside it is so dangerous. Can this mercury be replaced by any other material?

TJ McDermott
User Rank
Blogger
Why is it still there?
TJ McDermott   5/2/2013 11:05:56 PM
NO RATINGS
I must have been exposed to too much mercury because I cannot understand why these HAZMAT hand grenades have been mandated into our houses and workplaces.

Lead was legislated out of paint long ago.  So were volatile organic compounds (VOCs) which made paint spread much better.

This article addresses the handling after the fact.  Why not instead legislate a bulb that isn't a HAZMAT Hand Grenade?  Skip this crap and instead force us to LED bulbs?

 

Rob Spiegel
User Rank
Blogger
The cost of absorbing mercury
Rob Spiegel   5/2/2013 12:33:50 PM
NO RATINGS
Interesting story, Todd. I would guess the packing that absorbs mercury costs quite a bit more than traditional packaging. I wonder whether this will affect its use. Unless there is a government mandate, it could be this packaging will not be widely utilized.



Partner Zone
Latest Analysis
Researchers in the United Kingdom have found a sustainable way to derive hydrogen from grass to develop biofuel.
Without failure and loss, there is no success. Sadly, some failures and losses are greater than others. That’s certainly true of engineer and Space Race astronaut Gus Grissom.
Siemens and Fraunhofer Institute for Laser Technology have achieved a faster production process based on selective laser melting for speeding up the prototyping of big, complex metal parts in gas turbine engines.
Researchers in China have developed a new material that mimics coral that could help remove toxic heavy metals like mercury from the ocean.
The popularity of Pokemon Go may be break open a new rush of augmented reality products.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 11 - 15, Embedded System Design Techniques™ - Debugging Real-time Embedded Software – Hands on
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service