Question #50497

dear sir
why add Ethanol in determination of chloride in crude oil? IP-77 Test method. because at second time also isoamylalcohol is added!
best regards

Expert's answer

Isoamyl alcohol is slightly soluble in water, 28 g/L, very soluble in acetone, diethyl ether, ethanol. Ethanol improves solubility of demulsifier in extraction system, to prevent formation of additional phase.

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