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1. Chemical composition of fat
The term "fat" covers substances with different properties (table 1 ) but which have two characteristics in common:
their insolubility in water and, conversely, their solubility in organic solvents as a function of their nature and operating conditions such as temperature;
their density is lower than that of water, around 920 kg · m –3 .
1.1 Fatty acids
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Chemical composition of fat
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