Emulsifier Common Source Primary Use Lecithin Soybeans, egg yolks Food processing, chocolate Casein Milk Food products, adhesives Sodium Bicarbonate Baking soda Baking, fire extinguishers. Emulsions: When Mixing is Possible While pure oil and water won't mix spontaneously, it is possible to create a temporary mixture known as an emulsion.
How Hydrogen Bonds Keep Oil and Water Apart
The hydrophobic effect is a major driving force in biology and chemistry, causing non-polar substances to aggregate in water to minimize the disruption of the hydrogen-bonded network. When oil is introduced to water, the water molecules form a highly organized "cage-like" structure around the oil droplets.
This process, while it occurs, is energetically unfavorable because it disrupts the strong hydrogen bonds in the water for a weak interaction. The Principle of "Like Dissolves Like" The foundational rule governing solubility is "like dissolves like.
How Hydrogen Bonds Lock Water Molecules and Keep Oil Separate
Non-polar solvents dissolve non-polar substances by interacting through London dispersion forces. The polar water molecules prefer to interact with other polar water molecules rather than disrupt their stable hydrogen-bonded network to accommodate the non-polar oil molecules.
More About Why don't oil and water mix
Looking at Why don't oil and water mix from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Why don't oil and water mix can make the topic easier to follow by connecting earlier points with a few simple takeaways.
