Solutions and dispersions in nail materials
A solution contains substances dissolved at a molecular or ionic level. A particulate dispersion contains particles distributed through a surrounding medium. A coloured liquid can involve both arrangements; “mixed together” does not mean every ingredient has dissolved. [1]
KEY TAKEAWAYS
What a solution describes
OpenStax describes solutions as homogeneous mixtures whose dissolved components exist as molecules or ions. The relevant question is how the substance is present, not merely whether the product pours. A solvent name indicates a possible role in a formula, but it does not prove that every other ingredient dissolves in it. [1]
Solution, colloid and suspension
OpenStax distinguishes dissolved molecules or ions in a solution from colloidal particles and the larger particles of a suspension. In its introductory examples, suspended particles can settle on standing, while colloidal particles remain dispersed. The terms identify the mixture’s arrangement; “liquid”, “coloured” and “thick” describe different features. Those observations alone cannot classify every component or establish a product’s long-term stability. [1]
A document-reading example
Jungbunzlauer’s demonstration nail-polish formula lists pigment, solvents and film formers separately. These entries show different formulation roles within one product concept. The supplier example does not establish the state of every ingredient in another polish or demonstrate that a commercially available product has the same composition. [2]
Article Sources
- OpenStax / Rice University — Chemistry 2e, 11.5 Colloids
Educational reference material
Opening comparison and Figure 11.29: molecules/ions in solutions, suspended particles and colloidal dispersions. The following Tyndall-effect paragraph describes light scattering.
- Jungbunzlauer — Nail polish with CITROFOL: demonstration formulation 2019-023
Manufacturer material
PDF page 1: ingredient/INCI table; page 2: limited-stability and no-guarantee disclaimer. Formulation instructions are not reproduced.
Written and reviewed with AI assistance using the linked sources. No hands-on product testing or independent specialist review was performed.
