coal-tar creosote

• Líquido espesso e oleoso obtido pela destilação do alcatrão de hulha, usado principalmente como conservante de madeira para protegê-la de podridão, fungos e insetos. Tem odor defumado característico e também é empregado em algumas aplicações industriais.

A thick, oily liquid derived from the distillation of coal tar, used primarily as a wood preservative to protect against rot, fungi, and insects. It has a characteristic smoky smell and is also employed in some industrial applications.

1. C2formal

   A dark brown or black oily liquid derived from coal tar, used primarily as a wood preservative to protect against rot, fungi, and insects.

   Conservante de madeira

   • Railroad ties are often treated with coal-tar creosote to extend their lifespan.
   • The use of coal-tar creosote for residential wood treatment is restricted in many countries.
   • Workers handling coal-tar creosote must wear protective gear due to its toxicity.

2. Pharmaceutical agentC2formal

   A substance historically used in medicine as an antiseptic, expectorant, or for treating skin conditions like psoriasis and eczema.

   Agente farmacêutico

   • Coal-tar creosote was once prescribed as an expectorant for chronic bronchitis.
   • Some dermatological creams contain coal-tar creosote for treating psoriasis.
   • Modern medicine has largely replaced coal-tar creosote with safer alternatives.