Use of Selenium-containing Heterocyclic Compounds as a Means of Protecting Paint and Varnish Materials from Microbiological Damage

It was stated that the investigated selenium-containing heterocyclic compounds possess fungicidal activity. The values of the minimum inhibitory concentrations of these compounds for the most active micromycete-destructors of industrial and building materials were determined. The dependence of biocidal activity on the structure of the test compounds was revealed. It is shown that these compounds impart to the non-inflexible paint and varnish materials the properties of mushroom resistance and fungicidal properties, which makes it possible to use them as biocidal additives to protect paint and varnish materials from bio damage caused by microscopic fungi. A study was made of the ecological and toxicological characteristics of these compounds, using as a test organism the cultures of zeodiodaphynia and algae. Threshold concentrations of these compounds have been established.