förtunnas

Förtunnas is a Swedish verb meaning “to be diluted” or “to be thinned.” It is the passive form of förtunna and describes the process by which a substance’s concentration is reduced by adding a diluent, typically a solvent such as water or an organic solvent, or by increasing the total volume of the mixture so that the same amount of solute occupies a larger space. The result is a solution, suspension, or dispersion with lower concentration and often reduced viscosity or color intensity.

Usage and contexts: Förtunnas is common in science and industry, including chemistry, pharmacology, and analytical laboratories, as well as in painting, coatings, and culinary contexts. In chemistry and lab work, dilution is described quantitatively by C1V1 = C2V2, where C1 and V1 are the initial concentration and volume and C2 and V2 the final values after dilution. If a target concentration C2 is known, the required final volume V2 can be found, or the necessary added solvent can be calculated.

Noun form: The process is also described in Swedish as förtunning (dilution); the related verb förtunna means to dilute, and synonyms include späda ut. The word emphasizes a move from higher to lower concentration.

In everyday use, the concept of dilution applies to beverages, medicines, paints, and chemical solutions, affecting taste, color, and flow.