Ixodes holocyclus tick might "squeeze" saliva and gut contents into the host. Specifically, application of methylated spirit, nail polish remover, turpentine or ti-tree oil is thought to irritate the tick and make it inject more of the noxious substances. Spreading butter or oil over the tick is no longer recommended either. Application of pyrethrin (or pyrethroid) insecticides has been suggested 'as a narcotic and a toxicant, which prevents the tick from injecting its saliva' but with this method the tick may remain physically attached for 24 hrs before it drops off dead. Do not use pyrethrin containing products on cats as this
Solvent extraction and electrowinning Solvent extraction and electrowinning Solvent extraction and electrowinning (SX/EW) is a two-stage hydrometallurgical process that first extracts and upgrades copper ions from low-grade leach solutions into a solvent containing a chemical that selectively reacts with and binds the copper in the solvent. The copper is extracted from the solvent with strong aqueous acid which then deposits pure copper onto cathodes using an electrolytic procedure (electrowinning). SX/EW processing is best known for its use by the copper industry, where it accounts for 20% of worldwide production, but the technology is also successfully applied to a wide range of other metals including