Silver tetrafluoroborate Silver tetrafluoroborate Silver tetrafluoroborate is an inorganic compound with the chemical formula AgBF. It is a white solid that dissolves in polar organic solvents as well as water. In its solid state, the Ag centers are bound to fluoride. Silver tetrafluoroborate is prepared by the reaction between boron trifluoride and silver oxide in the presence of benzene. In the inorganic and organometallic chemistry laboratory, silver tetrafluoroborate, sometimes referred to "silver BF-4", is a useful reagent. In dichloromethane, silver tetrafluoroborate is a moderately strong oxidant. Similar to silver hexafluorophosphate, it is commonly used to replace halide anions or ligands with the
Silver bullet Silver bullet In folklore, a bullet cast from silver is often the only weapon that is effective against a werewolf, witch, or other monsters. The term is also a metaphor for a simple, seemingly magical, solution to a difficult problem: for example, penicillin was a silver bullet that cured many bacterial infections. Silver bullets also act as a calling card for The Lone Ranger in his adventures. The masked man decided to use bullets forged from the precious metal as a symbol of justice, law and order, and to remind himself and others that life, like silver, has value and