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HgSO4 is used to maintain Acidic condition of the Solution.

and AgSO4 is used to oxidise the low molecular weight fatty acid present if any in the sample.

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12y ago
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Anonymous

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4y ago

hgso4 used for factor

ag2so4 used for remove interference chlorides

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Q: What is the purpose of using hgso4 and ag2so4 in the cod test?
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