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practical 1 (oils) - Coggle Diagram
practical 1 (oils)
refractive index
influenced by the oil's composition, purity & temp.
used to verify oil identity, quality & detect adulteration (mixing with other oils)
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acidity
high levels > indicate degradation > occurs due to oxidation or hydrolysis > from poor processing or storage
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acidity calculation
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titrate the solution with KOH until a persistent pink color appears > indicates neutralization of FFA
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