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
Potassium amyl xanthate Potassium amyl xanthate Potassium amyl xanthate is an organosulfur compound with the chemical formula CH(CH)OCSK. It is a pale yellow powder or pellet with a pungent odor, soluble in water. It is widely used in the mining industry for the separation of ores using the flotation process. Potassium amyl xanthate is prepared by reacting amyl alcohol with carbon disulfide and potassium hydroxide. Potassium amyl xanthate is a pale yellow powder that is relatively stable between pH 8 and 13 with a maximum of stability at pH 10. The is 480 mg/kg (oral, rats) for potassium pentylxanthate. It is a biodegradable