A mixture includes a polymer solution, especially a cellulose solution, a first additive in the form of an inorganic lubricant and/or stabilizer, for example graphite, and a second additive as an adsorbent, for example activated carbon. The inorganic lubricants and/or stabilizers do not weaken the positive properties of the adsorbent but can even improve them. The mixture can be used to produce fibers (7) or moldings.