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What is diffrence between residue on ignition and sulphated
ash?
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Answer Posted / ajay ram jayswal
Residue of Ignition and sulphated ash has no more difference except the fact that sulfuric acid is added when sulphated ash is done and in residue on ignition no such chemicals are added before ignition.
However the question is, which one is better testing method for finding any kind of impurities.
Not much but if we go through the theoritical facts, residue on ignition will be better choice. To support the fact,all the impurities that remains in residue on ignition test can be tested . But when sulfuric acid is added in sulphated ash , only the sulphate counterparts or sulphate related reaction product wwill be detected.
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