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gallium vs. lead

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  • Member since
    September 2003
  • 21,669 posts
Posted by Overmod on Friday, October 1, 2021 3:52 AM

Considering certain other problems with gallium, including its behavior with aluminum and other metals and alloys, I fail to see what point there could be in using it in combination with some denser material actually suitable for locomotive weights, for what I presume would be some sort of formable weight like dental amalgam.

  • Member since
    May 2014
  • From: Pennsylvania
  • 1,154 posts
Posted by Trainman440 on Thursday, September 30, 2021 10:33 PM

Lead is about twice as dense as Gallium. Gallium also has a very low melting temperature, which is why its NOT recommended to be placed in locos as weight. If your motor heats up even a little it could be detrimental.

Charles

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  • Member since
    May 2004
  • 7,500 posts
Posted by 7j43k on Thursday, September 30, 2021 10:13 PM

xboxtravis7992


Unless you want to give depleted uranium weights a try or something outlandish like that. :P 

 

 

 

Tungsten is denser than uranium.  Depleted or not.  So is gold.

Gold is very easy to work, a definite plus.  Tungsten is very difficult to work, a minus.

I'd go with gold.

 

That said, if you're the kind of guy who's always trying to save a buck, I'd go with lead.

 

Ed

  • Member since
    May 2017
  • 382 posts
Posted by xboxtravis7992 on Thursday, September 30, 2021 9:18 PM

Mr B & O

It depends.  One gram of gallium weighs the same as one gram of lead.  One mole of gallium weighs 69.72 grams, one mole of lead weighs 207.2 grams.  So what you really want to know is which metal is more dense.

Greg

 

 
banjobenne1

Does gallium weigh as much as lead?

 

 

 

 

 



To expand on that, just look at a periodic table. It shows how lead is much heavier than gallium due to lead having the higher atomic number. Gallium though if you want a heavier material is certainly more heavy than iron, zinc or aluminum; and although not as heavy its certainly cheaper than platinum or gold. https://pubchem.ncbi.nlm.nih.gov/periodic-table/

J
ust make sure to wash your hands after working with lead, and especially be careful if milling it since lead can be risky for your health; but as long as you are taking the proper precautions it is the heaviest and most importantly cheapest at it material you can find on market.

Unless you want to give depleted uranium weights a try or something outlandish like that. :P 

  • Member since
    December 2004
  • From: Bedford, MA, USA
  • 21,483 posts
Posted by MisterBeasley on Thursday, September 30, 2021 3:12 PM

Can you go to your local bait and tackle shop and buy gallium fishing weights?

It takes an iron man to play with a toy iron horse. 

  • Member since
    July 2006
  • From: Frisco, Ellwood City, PA
  • 127 posts
Posted by Mr B & O on Thursday, September 30, 2021 2:31 PM

It depends.  One gram of gallium weighs the same as one gram of lead.  One mole of gallium weighs 69.72 grams, one mole of lead weighs 207.2 grams.  So what you really want to know is which metal is more dense.

Greg

banjobenne1

Does gallium weigh as much as lead?

 

 

  • Member since
    November 2006
  • 19 posts
Posted by nyoandw on Thursday, September 30, 2021 2:29 PM

One pound of gallium weighs the same as one pound of lead.  However, one pound of gallium will take up more space than one pound of lead.  And your gallium will melt at 85 degrees or so, so it may be messier than lead.

  • Member since
    February 2010
  • 160 posts
gallium vs. lead
Posted by banjobenne1 on Thursday, September 30, 2021 2:21 PM

Does gallium weigh as much as lead?

 

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