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Topic: the pyrolysis of the salt calcium nitrate - Ca(NO3)2  (Read 4762 times)

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Offline netthubuon

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the pyrolysis of the salt calcium nitrate - Ca(NO3)2
« on: December 29, 2009, 11:23:12 AM »
Currently I have read in some books say pyrolysis reaction of calcium nitrate salts as follows:

Ba (NO_3) _2 = Ba (NO_2) _2 + O_2 when baked at 594-620 degrees C.
Ba (NO_3) _2 + O_2 = BaO +2 NO_2 when baked at 620-670 degrees C.

So what is the case properly.

Offline Borek

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Re: the pyrolysis of the salt calcium nitrate - Ca(NO3)2
« Reply #1 on: December 29, 2009, 12:11:47 PM »
My bet is mixture all the time, with dominating products being listed for temperature ranges.
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Offline netthubuon

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Re: the pyrolysis of the salt calcium nitrate - Ca(NO3)2
« Reply #2 on: December 29, 2009, 12:30:11 PM »
So what can I give the correct this? I am living and studying in the Vietnam. I found the book that there is no unity, has written this book, there are the other books.

and many other you ask me about problems (http://forum.hoahoc.org/showthread.php?p=49398>

Offline AWK

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Re: the pyrolysis of the salt calcium nitrate - Ca(NO3)2
« Reply #3 on: December 30, 2009, 02:13:20 AM »
Ba(NO3)2 is called barium nitrate

http://www.chemguide.co.uk/inorganic/group2/thermstab.html

A decomposition of nitrates to nitrites start about 600 C, then to oxide and the mixture of NO and NO2 since the decomposition of NO2 to NO + O2 starts at 150 C and about 850 C practically only NO exist. NO decompose further to N2 + O2 above 1200 C.
Temperature limits shown in your textbook give you information on the optimal content of nitrogen dioxide in the gaseous mixture at the equilibrium.
AWK

Offline netthubuon

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Re: the pyrolysis of the salt calcium nitrate - Ca(NO3)2
« Reply #4 on: December 30, 2009, 06:27:45 PM »
So actually particularly like? you read your posts and documents via links you give, you still do not know much, you can say a short short: You can key is barium nitrate pyrolysis temperature by exactly how much? forming the specific nature of the case. Capital because my English still quite poor, so do not translate exactly.

Offline netthubuon

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Re: the pyrolysis of the salt calcium nitrate - Ca(NO3)2
« Reply #5 on: January 04, 2010, 07:37:42 PM »
Who among you can say clearly and precisely is not? their search without standard documents read that.

AWK to material that you read, still do not see very clearly the

Thanks

Offline Borek

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Re: the pyrolysis of the salt calcium nitrate - Ca(NO3)2
« Reply #6 on: January 05, 2010, 02:41:34 AM »
Your messages are undecipheralble, are you using machine translation?
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Offline netthubuon

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Re: the pyrolysis of the salt calcium nitrate - Ca(NO3)2
« Reply #7 on: January 05, 2010, 07:36:03 AM »
yes. I'm using the google translation services. Because the capital of my very poor English, documents in Vietnamese, there is no problem on, so I have to go find a free site is free to ask him all over.

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