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tritium sites in sub zero weather

Discussion in 'Sights, Optics and Lasers' started by orangejeep06, Jan 31, 2011.


  1. orangejeep06

    orangejeep06
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    Hello,this may have been discussed before(did'nt find anything) but does anyone here know if tritium capsules would freeze and rupture in extended -0 weather? I sometimes have to leave my G27 for extended periods(9 hours +/-) in a lock box under my jeep seat.The past few weeks here we have had a few bitterly cold days and i am worried about damaging the sites.The reason i ask is i'm not sure if the tritium is a solid or liquid and assuming it's a liquid i would think it would have the potential to expand and crack the vial.If anyone has any information on this subject it would be greatly appreciated.Thanks.
     

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  2. repolady

    repolady
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    Its 22 Degrees here right no I'm putting the 29 outside now I'll leave it out overnight and let you know in the morning (supposed to be aroud 14-16 out tonight)



    I really am doing this because I kinda wonder too. I always have my G29 with me when I hunt and it gets plum COLD out I haven't had any issues but the gun is usually under a coat and against my body (aside from a layer of under armour between us)
     

  3. Glock4President

    Glock4President
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    No I don't think so. The police use them in sub zero temperatures all the time.
     
  4. Captains1911

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    Tritium is neither solid nor liquid, it is a GAS. I think you're fine.
     
  5. orangejeep06

    orangejeep06
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    Thank you Captains1911,i had never considered it as a gaseous form.Appreciate the help!
     
  6. quinnt

    quinnt
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    A room temperature gas turns to a liquid and a solid at a certain temperature:supergrin:

    But yes you should be fine.
     
  7. G26S239

    G26S239
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    Radioactive decay is not affected by the temps found on Earth.
     
  8. chini42

    chini42
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    For the past 2 years mine has been locked up in a vehicle for 12+hrs a day, 5-6 days a week in Michigan winters. I haven't had a problem yet.
     
  9. Captains1911

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    So according to you, hydrogen, nitrogen, oxygen, helium, carbon dioxide, carbon monoxide, AIR etc., etc., etc. turns to liquid at room temperature...
     
    #9 Captains1911, Jan 31, 2011
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  10. Sonnytoo

    Sonnytoo
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    Night-sights are glass "lamps", filled with pressurized tritium GAS and cushioned in a bed of silicon rubber to prevent damage from shock.
    Tritium is an isotope of hydrogen, is radioactive with a half-life of about 12.2 yrs. It glows because it is a radioactive gas. You don't have to worry about heat or cold.
    12.2 years from now, your sights will still be 1/2 as bright as they are today.
    24.4 years from now, your sights will still be 1/4 as bright as they are today.
    After 1024 years from now (1/2 to the 10th power), they will still have a dim glow, although you won't be around to see it.
    Here is a link to Trijicon which shows the construction of these lamps.
    http://www.trijicon.com/na_en/products/product1.php?id=BNTNS
    S2
    p.s. Physics and math can be fun.
     
    #10 Sonnytoo, Jan 31, 2011
    Last edited: Jan 31, 2011
  11. orion814me

    orion814me
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    The boiling point of tritium is -415 degrees F. You should be fine as long as your jeep is parked on this planet. BTW its half life is 12.26 years.

    Edit.
    Looks like Sonnytoo beat me to it with the science facts.
     
    #11 orion814me, Jan 31, 2011
    Last edited: Jan 31, 2011
  12. MrVvrroomm

    MrVvrroomm
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  13. mr_fender

    mr_fender
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    Not always. Some compounds go directly from solid to gas. It's called sublimation. Dry Ice is one example. :tongueout:
     
  14. PrO...

    PrO...
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    Where outside? :supergrin:
     
  15. G26S239

    G26S239
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    And, as a result, dry ice sights have fallen out of favor. :supergrin:
     
  16. Foxtrotx1

    Foxtrotx1
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    Hoooo k heres the dealio on za treeetium! ez gas at schtandard tempeture und pressure!

    [​IMG]
     
  17. janice6

    janice6
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    I live in Minnesota. my whole extended family uses them without a problem.
     
  18. rca256

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    If you get it down below -252.8 C, it will change from a gas to a liquid.
     
  19. Lateral Forces

    Lateral Forces
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    I thought they filled the vials with Tritiated water. Could be wrong though.
     
  20. DustyJacket

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    Sez who ? :supergrin:
     
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