- after a period of time, combined with the reaction and separation layer, oil and biodiezen than at the bottom of the glycerol tension, ethanol will lie out of the oil mixture. Biodiezen after separation with many impurities such as glycerol, ethanol washing, so we split all the impurities. These impurities are dissolved in water and well, so we have to use hot water cleaning products. Let the product in 1000 ml, Wash Cup 70oC washed with distilled water, remove part and wash many times, until the product no longer kneeling purple color change.
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