Is nail polish a substance or mixture

Is nail polish a substance or mixture? There is much debate around this question, but there is a simple scientific answer to it. Nail varnish is nothing else but a mixture. Keep reading to find out why.

Is nail polish a substance or mixture?

Due to its composition, nail polish falls into the category of mixtures, as it is made up of multiple ingredients. A substance has only one compound. Please note that homogeneity is not a defining feature of substance. A mixture, composed of more elements, can also be homogenous.

 Nail polish composition

So what is nail varnish made of? There are several ingredients that make up the composition of this mixture. However, only two of them are vitally important in giving the nail varnish the needed structure and texture. First one, it's a polymer whose role is creating a film on the nail. Yes, that solid coat that forms on your nails after the polish dries out is the polymer.

The second crucial compound is an organic solvent with high volatility. Typically, it's ethyl acetate or isopropyl alcohol. The role of this element is to turn the nail polish into a liquid so that it's easily spread on the nail. Once applied on the nail, the organic solvent evaporates, leaving the polymer alone on your fingers, which explains why the polish gets hard. Besides polymer and ethyl acetate, nail varnish is composed of other ingredients that are meant to improve the quality of the mixture. Here they are:

 Dyes

If you use a nail polish, it's highly probable that it's a colored one. Transparent polishes are also used, but if you want to make your nails more attractive and eye-catching, you got to use a colored varnish, which contains a specific dye. Manufacturers use different chemicals to give the polish a certain color. For example, chromium oxide is used to make green varnishes, while iron oxide is an irreplaceable component of red and orange polishes.

 Adhesive polymers

Adhesive polymers have rather a technical role in a nail enamel, as they don't contribute to making your nails more beautiful. These elements are in charge of making the polish adhere better to your nails. In this way, you don't have to worry about polish peeling off.

 Opalescent pigments

These pigments provide a glittery look to your nail polish. They may be in the form of aluminum powder, natural pearls or other elements with glittery effect.

 Plasticizers

Low-end nail polishes are usually brittle and easy to crack, especially when you permanently get your hands involved in some kind of work around the house. To prevent scratches and cracks on your polish, you are good to buy a polish containing plasticizers. These elements fortify the polish, making it more resistant to hazards.

 This not only keeps your nail pattern as beautiful as on the day of varnish application, but also protects your nails and fingers. For example, you chop some veggies and the knife's blade accidentally goes over your nail. The extra solid polish film will keep the knife from making a deep cut into your nail.

 UV stabilizers

Ultraviolet stabilizers are meant to protect the polish from sun's UV rays. If your nail enamel contains this ingredient, extended exposure to sun will not discolor your polish, helping it stay vibrant and glittery.

 Does nail polish dissolve in water?

The above content proves that the answer to "is nail varnish a substance or a solution?" is solution. But can you mix nail polish with water? No, in spite of being a homogeneous mixture of more compounds, nail enamel doesn't blend in water. There is no attraction between water particles and polish particles. That's why they will stay separated when added them to the same bowl.

 This means that submerging your hands in water right after polish application will not wipe the polish off. In fact, icy water can help the varnish to dry faster. So you can use this trick when you have to go out but your polish is still wet.

Bottom line

Is nail polish a substance or mixture? Definitely a mixture, as it is composed of multiple ingredients. They include two main compounds, a polymer and a volatile organic solvent, and a list of auxiliary elements that enhance the quality of the polish.