{"id":21730,"date":"2020-08-27T13:01:53","date_gmt":"2020-08-27T11:01:53","guid":{"rendered":"https:\/\/rinconeducativo.org\/efemerides\/27-de-agosto-de-1875-paul-e-lecoq-de-boisbaudran-descubre-el-galio\/"},"modified":"2024-12-20T12:29:13","modified_gmt":"2024-12-20T11:29:13","slug":"august-27-1875-paul-e-lecoq-de-boisbaudran-discovers-gallium","status":"publish","type":"re_efemeride","link":"https:\/\/rinconeducativo.org\/en\/anniversaries\/august-27-1875-paul-e-lecoq-de-boisbaudran-discovers-gallium\/","title":{"rendered":"August 27, 1875 \u2013 Paul E. Lecoq de Boisbaudran discovers gallium"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignleft\"><img loading=\"lazy\" decoding=\"async\" width=\"340\" height=\"289\" src=\"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/08\/paul_lecoq.jpeg\" alt=\"\" class=\"wp-image-17462\"\/><\/figure>\n<\/div>\n\n\n<p>Paul \u00c9mile Lecoq de Boisbaudran (1838-1912) discovered gallium (Ga), element number 31, by spectroscopy, by examining a zinc blende and two ultraviolet lines appearing, a spectral characteristic of this element. That same year, he isolated it by electrolysis of the hydroxide in a potassium hydroxide (KOH) solution and named it after his native Gallia, although its existence had been predicted in 1871 by Mendeleev, who called it eka-aluminium.<\/p>\n\n\n\n<p>A soft, grayish metal in the liquid state that takes on a silvery hue when solidified, gallium is used in the construction of integrated circuits and in the manufacture of mirrors, glass, and ceramics. As a curiosity, gallium melts at temperatures close to room temperature and even, sometimes when held in the hand, below its melting point (28.56\u00b0C).<img decoding=\"async\" style=\"width: 403px; height: 403px; float: right;\" src=\"http:\/\/rinconeducativo.org\/sites\/default\/files\/galio.jpg\" alt=\"Galio puede fundirse en las manos\"><\/p>\n\n\n\n<p>In an article published two years later in Annales de Chimie, Lecoq de Boisbaudran noted that his research had actually begun 15 years earlier, although he lacked the resources to carry it out.<\/p>\n\n\n\n<p>In 1879, he was awarded the Royal Society's Davy Medal for his discovery.<\/p>\n\n\n\n<p>Lecoq later discovered, using the same procedure, samarium (1880) and dysprosium (1886).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Paul \u00c9mile Lecoq de Boisbaudran (1838-1912) discovered gallium (Ga), element number 31, by spectroscopy, by examining a zinc blende and two ultraviolet lines appearing, a spectral characteristic of this element. That same year, he isolated it by electrolysis of the hydroxide in a potassium hydroxide (KOH) solution and named it after his native Gallia, although [&hellip;]<\/p>\n","protected":false},"author":1088,"featured_media":17463,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[7715],"mes":[7209],"clasificacion_anterior":[],"class_list":["post-21730","re_efemeride","type-re_efemeride","status-publish","has-post-thumbnail","hentry","tag-periodic-table-en","mes-august"],"acf":{"fecha":"18750827"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>August 27, 1875 \u2013 Paul E. Lecoq de Boisbaudran discovers gallium - Rinc\u00f3n educativo<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rinconeducativo.org\/en\/anniversaries\/august-27-1875-paul-e-lecoq-de-boisbaudran-discovers-gallium\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"August 27, 1875 \u2013 Paul E. Lecoq de Boisbaudran discovers gallium - Rinc\u00f3n educativo\" \/>\n<meta property=\"og:description\" content=\"Paul \u00c9mile Lecoq de Boisbaudran (1838-1912) discovered gallium (Ga), element number 31, by spectroscopy, by examining a zinc blende and two ultraviolet lines appearing, a spectral characteristic of this element. That same year, he isolated it by electrolysis of the hydroxide in a potassium hydroxide (KOH) solution and named it after his native Gallia, although [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rinconeducativo.org\/en\/anniversaries\/august-27-1875-paul-e-lecoq-de-boisbaudran-discovers-gallium\/\" \/>\n<meta property=\"og:site_name\" content=\"Rinc\u00f3n educativo\" \/>\n<meta property=\"article:modified_time\" content=\"2024-12-20T11:29:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/rinconeducativo.org\/wp-content\/uploads\/2020\/08\/paul_lecoq.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"340\" \/>\n\t<meta property=\"og:image:height\" content=\"289\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/august-27-1875-paul-e-lecoq-de-boisbaudran-discovers-gallium\/\",\"url\":\"https:\/\/rinconeducativo.org\/en\/anniversaries\/august-27-1875-paul-e-lecoq-de-boisbaudran-discovers-gallium\/\",\"name\":\"August 27, 1875 \u2013 Paul E. 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