[netthubuon]

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.

[Borek]

My bet is mixture all the time, with dominating products being listed for temperature ranges.

[netthubuon]

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>

[AWK]

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.

[netthubuon]

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.

[netthubuon]

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

[Borek]

Your messages are undecipheralble, are you using machine translation?

[netthubuon]

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.