Chemical element of metals. Cu comes from Cuprum, Fe comes from Ferrum, Ag from Argentum. The symbols were not followed by a period (full stop) as with abbreviations. Later chemical elements were also assigned unique chemical symbols, based on the name of the element, but not necessarily in English. For example, sodium has the chemical symbol 'Na' after the Latin "natrium". The same applies to "W" (wolfram) for tungsten, "Fe" (ferrum) for iron, "Hg" (hydrargyrum) for mercury, "Sn" (stannum) for tin, "K" (kalium) for potassium, "Au" (aurum) for gold, "Ag" (argentum) for silver, "Pb" (plumbum) for lead, "Cu" (cuprum) for copper, and
Silver acetylide evolution of gaseous products and that its chemical formula is . In reality, it is a double salt with the silver salt it was produced from, usually silver nitrate. The anion of the parent compound acts as the oxidizer in the decomposition reaction. The detonation velocity of the mixture silver acetylide: silver nitrate is 3460 m/s. That of pure silver acetylide is 4000 m/s. Silver acetylide can be produced by passing acetylene gas through a solution of silver nitrate: The reaction product is a greyish to white precipitate. This is the same synthesis from Berthelot in which he first found