Do nothing.
Vinegar is aqueous. Oil is not. They will not mix and remain so. Not without an emulsifier.
You let it sit and oil will float and vinegar will sink. You then can use an eye dropper .
vinegar and oil separate because the oil has a lighter density than the vinegar therefore the oil would float so you can freeze it and they would be on different levels the oil would be above the vinegar. you could spoon out the oil and there you go oil and vinegar separated. for anyone who doesn't know, the word density means how heavy something is for its size.
Oil and vinegar dressing is a heterogeneous mixture.
Vinegar and oil will separate. Shaking it mixes them together.
Because oil and vinegar are not miscible. -(you can shake or stir them together, but they soon separate.)
why doesn't French salad dressing separate
Heterogeneous materials can be separated as they are made from separate components. Oil and vinegar salad dressing is an example of heterogeous product.
Vinegar and oil separate in Italian dressing because they have different densities and polarities. Oil is non-polar and less dense than vinegar, so it tends to float on top of the vinegar. To create a stable emulsion, which keeps the ingredients mixed together, an emulsifier like mustard or egg yolk can be added to help bind the oil and vinegar together.
One method to separate oil and vinegar is by using a separatory funnel. By adding the oil and vinegar to the funnel and allowing them to naturally separate based on their densities, you can then drain out each layer separately. Another method is to use a centrifuge, which spins the mixture at high speeds to separate the components based on their densities.
Heterogeneous materials can be separated as they are made from separate components. Oil and vinegar salad dressing is an example of heterogeous product.
It is necessary to shake an oil and vinegar salad dressing before adding it to a salad because they separate easily.
Oil and vinegar do not mix, which is to say, they are not mutually soluble. When you put the two of these together in one container, you get two separate layers; the vinegar on the bottom and the oil floating on top. So if you would like to have a mixture of oil and vinegar on your salad, you have to shake the bottle first. Because one is water based and one is oil based so they don't form a combined solution. You have to shake them to form an emulsion of small droplets of oil susoended in the vinegar. If you didn't shake them they would remain as two separate liquids.