Question: How did you get oil to dissolve in water? I thought it was immiscible in water!?

Poonam Kaushik answered on 18 Jun 2010:

Intermolecular bonds are exactly the reason why they don’t mix. Water molecules have strong bonds with one another, called “hydrogen bonds.” This consists of an extraordinarily strong attraction that the hydrogens of one H2O have for oxygens of nearby H2O molecules. Oil molecules also have very strong bonds with one another, but not hydrogen bonds. Oil molecules are bonded to one another by what are called “London forces,” or sometimes “dispersion forces.” This is a little harder to explain in
simple terms, but basically the large oil molecules tend to clump together because of these forces. However, an oil molecule does not hydrogen bond with a water molecule, and an oil molecule’s
dispersion attraction to a water molecule is weak compared to the oil-oil attraction. So, the water stays separate from the oil, giving rise to the old chemistry saying “like dissolves like.

To dissolve oil in water or water in oil we require a chemical called surfactant! The term surfactant is a blend of surface active agent. Surfactants are usually organic compounds that are amphiphilic , meaning they contain both hydrophobic groups (their tails)(water-hating groups) and hydrophilic groups (their heads (water-loving groups)). Therefore, they are soluble in both oil and water.

So using these surfactants we can combine the oil and water. COKE is actually a mixture of oily flavor and water mixed with sugar and carbon dioxide. Ratio nobody knows becoz of patent by Coco cola company!