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    RickJ's Avatar
    RickJ Posts: 7,762, Reputation: 864
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    #1

    May 16, 2007, 04:03 AM
    Melting point of Mercury
    Mercury has a melting point of -38.87 °C (234.28 °K, -37.966 °F).

    I also find conflicting information about it's freezing point. I see some sites saying it's freezing point is the same as it's melting point, but others say it freezes at -78 °F.

    ... so what happens to Mercury when it "melts"?
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #2

    May 16, 2007, 04:06 AM
    Melting is the opposite of freezing... so it makes sense that the transition is at the same temperature... :rolleyes:
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #3

    May 16, 2007, 04:09 AM
    Can you give the sites that give the freezing point as -78F
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    Capuchin Posts: 5,255, Reputation: 656
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    #4

    May 16, 2007, 04:11 AM
    I think I have found the problem, The Mercury-Thallium alloy that is used in mercury thermometers has a melting point of -78F... This is where you/others might be getting confused.
    RickJ's Avatar
    RickJ Posts: 7,762, Reputation: 864
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    #5

    May 16, 2007, 04:21 AM
    Of course... Duh me! I was thinking too much, wondering what happened to it at that low temp... and the answer, of course, is it freezes.
    SirBajesus2's Avatar
    SirBajesus2 Posts: 2, Reputation: 1
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    #6

    Feb 11, 2009, 02:15 PM

    Since you know what that is what is the boiling point?
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
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    #7

    Feb 11, 2009, 03:32 PM
    Quote Originally Posted by sirbajesus2 View Post
    since yall know what that is what is the boiling point?
    629.88 K from http://en.wikipedia.org/wiki/Mercury_(element)
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #8

    Feb 27, 2009, 08:19 AM

    Mercury has been used for centurys for gold prospecting.
    Mercury will attach to the Gold forming an amalgam.
    Then it can be heated in a Retort, so the Mecury Vaporizes, cooled down and reused again, and all that is left is the gold.
    Mercury fumes are dangerous. I have heard it can vaporize at room temperature?
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