âFading occurs when any chemical process breaks the sequence of conjugated double bonds constituting the chromophore - the dye moiety that imparts colour.â âSome other dye systems are based on the chromophores triphenylmethane, xanthene, anthroquinone, indigo, and phthalocyanine.â
El Paso (/Él ËpÃ¦soÊ/ ell PASS-oh; from Spanish, the pass) is the seat of El Paso County, Texas, United States. The city is situated in the far western corner of the U.S. state of Texas.
El Paso County and neighboring Hudspeth County are the only Texas counties on Mountain Time. The county comprises 1,057 square miles of desert and irrigated land that rises from an elevation of 3,500 feet at the Rio Grande to 7,000 feet at the summits of the Franklin Mountains.