iodine number

noun
variants: or iodine value

Definition of iodine number

: a measure of the unsaturation of a substance (as an oil or fat) expressed as the number of grams of iodine or equivalent halogen absorbed by 100 grams of the substance the iodine numbers of linseed oil, olive oil, and coconut oil are approximately 175–201, 77–91, and 8–9.5 respectively

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