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What is " spent-lye" in soap industry ?
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Glycerol (propan-1, 2, 3-triol) is an important by-product of soapmanufacture. It is found dissolved in the soap lye and as impurity in the crude soap when fats and oils are saponified by caustic soda1-3. this is spent-lye in soap industry.
riyakadam174:
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