Rosin and its derivatives are used for sizing paper and board, as an emulsifier in the production of synthetic rubber in the manufacture of rubber, plastics, artificial leather, linoleum, soap, paints and varnishes, mastics and insulating compounds. Widely used as a flux in tinning and soldering. In addition, rosin rubbed bows bowed string instrument, ballerina’s shoes.
The fragile, glassy, amorphous substance from dark red to light yellow. Included in the resins of conifers and is obtained from turpentine. The composition of resin acids predominate (80 - 95%) having the general formula C19H29COOH (main component - abietic acid)