Rosin taken when melting it. It is soluble in alcohol, ether, benzene and chloroform. Rosin consists mainly of abietic acid, and combines with caustic alkalis to form salts (rosinates or pinates) that are known as rosin soaps. In addition to its extensive use in soap making, rosin is largely employed in making varnishes (including fine violin varnishes), sealing wax and various adhesives. It is also used for preparing shoemakers' wax, for pitching lager beer casks, and numerous other purposes such as providing backing surfaces to tin ware, copper ware, or even silver and gold vessels when embossing or engraving them (its
Charles Rosin Charles Rosin Charles Scott Rosin is a screenwriter and producer who has written for television since the late 1970s. Rosin is best known for his work as writer/executive producer on the television series "Beverly Hills, 90210" throughout the first 144 episodes/five seasons of the show, from 1990-1995. During Rosin's tenure as executive producer the series received a People's Choice Award, two Golden Globe Nominations, and numerous citations and awards for its sensitive handling of contemporary issues. Other writing credits include "Dawson's Creek", "Leap Years" and "Northern Exposure". Rosin's work on Northern Exposure earned him an Emmy nomination in 1990. In