The invention relates to a deformable mass for using as a disinfectant, comprising water, between 25 and 40 weight per cent of a solvent component consisting of low-molecular, water-miscible alcohols, between 1 and 10 weight per cent of a bactericide active component, between 3 and 6 weight per cent of a hydroxypropylated polygalactomannan having a degree of esterification of between 0.3 and 1.5, and between 0.1 and 0.5 weight per cent of boric acid or the equivalent quantity of boron ions.
