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Inorganic Chemistry
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Tarin Bansal
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Joined: 27 Jul 2007
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8 Jan 2008 00:22:19 IST
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Well kjehladahl is a method for estimation of elements, Nitrogen I think, I dont remember well.
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8 Jan 2008 14:16:29 IST
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Ya I think Tarin is right
The Kjeldahl method is a method to determine the quantity of N in a cpd.
So I guess Kjeldahlising a Compound means either finding the quantity of N in it or carrying out the Kjeldahl method on the given cpd.
Post the question We may be able to help you better....
For more on the Kjeldahl method:
http://en.wikipedia.org/wiki/Kjeldahl_method
http://www.coleparmer.com/techinfo/techinfo.asp?htmlfile=KjeldahlBasics.htm
The Kjeldahl method is a method to determine the quantity of N in a cpd.
So I guess Kjeldahlising a Compound means either finding the quantity of N in it or carrying out the Kjeldahl method on the given cpd.
Post the question We may be able to help you better....
For more on the Kjeldahl method:
http://en.wikipedia.org/wiki/Kjeldahl_method
http://www.coleparmer.com/techinfo/techinfo.asp?htmlfile=KjeldahlBasics.htm
8 Jan 2008 19:47:17 IST
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kjeldahls methodis used to determine nitrogen content in organic compounds in which nitrogen is attached to cabron and hydrogen (bt not in azo,nitro and azoxy)
principle:nitrogen is heated with conc sulphuric acid in copper sulphate which converts it into ammonium sulphate . this ammonium sulphate is treated with excess of alkali which decomposes to ammonia from which nitrogen content is calculated.
catalyst used is coppersulphate and mercury .
potassium sulphate is also added to raise the boiling point of sulphuric acid.











