Naked Science Forum
Non Life Sciences => Chemistry => Topic started by: neilep on 21/10/2008 19:54:29
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Dear Meltologists !
See this diamond ?
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Nice eh ?
Diamonds are like...well 'ard aren't they ?
If there was gonna be a fight between a diamond and an emerald...then the diamond would win every time yes ?
But, when ewe look at it..it only looks like a piece of glass.....does it melt ?...can one melt a diamond and cast it to become something else ?
What happens to a diamond then, when you gradually increase it's temperature ?..does it burn ?..does it just explode ?...and why ?
As a firm believer in empirical study, I happen to know that my neighbour has a diamond earring...so I took it and applied a lit match to it !!...nothing !. the match did not even scare the diamond at all !.....My neighbour protested though, quite angrily I think...he was still wearing it !.....I tried, as I usually do, to explain that it's all in the name of science and that he should relish and cherish this opportunity..but.....even as the ambulance drove him away I could hear him still protesting !......I just don't get it !!
anyway, if ewe could help me with my diamond orientated questions I would be most grateful !
Thanking ewe
Neil
Diamond Geeza
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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3547 Celsius.
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3547 Celsius.
Is that as hot as your chillies ? [;)]
Thank ewe blakestyger
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I thought that diamonds or quartz couldn't melt since they are formed from carbon.
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Diamonds can be burned too. (http://www.channel4learning.com/sites/clipbank/subjects/science/sci0263970505.html)
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Quartz isn't carbon, it's silicon dioxide.
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But, when ewe look at it..it only looks like a niece of glass.....does it melt ?...can one melt a diamond and cast it to become something else ?
Not at normal pressure, you need at least ~ 100 bar:
http://dao.mit.edu/8.231/CarbonPhaseDia.htm
At normal pressure it sublimate (directly from solid to vapour).
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To know more about the chemical properties of diamond, visit this link:
Edited by mod, link removed. Sorry roxen but we do not allow posts which do nothing other than promote a site.
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hello misss
you must know that it is an isotope of carbon it can melt!!!
aren't they !!!
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hello misss
you must know that it is an isotope of carbon it can melt!!!
aren't they !!!
What (the heck) are you talking about?
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hello misss
you must know that it is an isotope of carbon it can melt!!!
aren't they !!!
What (the heck) are you talking about?
They just love bumping my threads back to the top ! [::)] [::)]..can ewe blame them ?..after all..it's me !! *le sigh*
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hello misss
you must know that it is an isotope of carbon it can melt!!!
aren't they !!!
What (the heck) are you talking about?
They just love bumping my threads back to the top ! [::)] [::)]..can ewe blame them ?..after all..it's me !! *le sigh*
No, it's just that I don't understand what the concept of "isotope" has to do with the (your) question.
P.S. (it's not you) [:)]
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... I have the strangest inkling he messed "isotope" up with "allotrope".
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... I have the strangest inkling he messed "isotope" up with "allotrope".
I had that strange inkling too... [:)]
Anyway, even if it was "allotrope", it would be incorrect the same, because there isn't any allotrope of carbon which melts (at standard pressure).
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True, but what's so magic about standard pressure?
At least some allotropes will melt at some pressure or other.
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True, but what's so magic about standard pressure?
At least some allotropes will melt at some pressure or other.
Ok, but would you say that some of them "melts" and others don't, independently on pressure?
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Like this?
.
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.sandia.gov%2Fnews%2Fresources%2Freleases%2F2006%2Fimages%2FDiamondPressure_nr.jpg&hash=026a25a4e4d22b4017d8567f47e5e102)
http://www.sandia.gov/news/resources/releases/2006/diamonds.html
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can this experiment be added to the "Kitchen Science", [:P] [:D] [:D]
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Hello guys don't take tension!!! you can't burn carbon di-oxide!
So even when you keep it contact with the lava! it doesn't melt, and yu should know these that in japan there is still some diamonds found near oceans, due to volcanic erruption the diamond which is present in the deep of the earth, come out....
If any wrong please sujjest !!
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What does carbon dioxide have to do with anything?
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Hmm good question ??? Bingo