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.
The city is situated in the far western corner of the U.S. state of Texas. El Paso stands on the Rio Grande river across the MexicoâUnited States border from Ciudad JuÃ¡rez, the largest city in the Mexican state of Chihuahua.