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Subject: 
Re: A question of humidity...
Newsgroups: 
lugnet.color
Date: 
Sat, 17 Jul 2004 09:29:29 GMT
Viewed: 
839 times
  
SNIP
Not really.  When you run plastic in different colors for the same application,
you usually just use the same raw resin for each color, so the only real
chemical difference would be the coloring agents.  And while they can cause
slightly different behaviors in the plastic, I'm not sure it'll affect how the
plastic reacts to humidity (well, unless you do something stupid like using
sodium as a coloring agent, potentially causing it to explode if you get it
wet).

Please explain this to me.....sodium will explode when it gets wet?  If this is
true than wouldn't the oceans blow up?
Just curious....
Jen



Message has 2 Replies:
  Re: A question of humidity...
 
(...) Pure sodium (the metal) will explode (= react violantly) with water. However, the sodium that is in the oceans is not the metal, but the ion - positively charged. It is usualy accompanied by a chlorine ion (negative). Just like salt that you (...) (20 years ago, 17-Jul-04, to lugnet.color)
  Re: A question of humidity...
 
(...) Pure sodium metal will react with water to form hydrogen and heat energy; more than enough heat energy to ignite the hydrogen. Hydrogen is highly flamable. -Rob. (20 years ago, 17-Jul-04, to lugnet.color, lugnet.off-topic.geek)

Message is in Reply To:
  Re: A question of humidity...
 
(...) Usually they start by grading them according to the actual plastic compound, like acryllic (I believe that's what the old "thief-smasher" phones of the 70's were made from) or vinyl (used as a surface layer on many dashboards). After that (...) (20 years ago, 16-Jul-04, to lugnet.color)

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