{"id":1498,"date":"2019-06-25T15:54:58","date_gmt":"2019-06-25T14:54:58","guid":{"rendered":"https:\/\/lssq-consulting.com\/resumen-de-algunas-propiedades-importantes-del-zinc\/"},"modified":"2020-04-24T12:18:07","modified_gmt":"2020-04-24T11:18:07","slug":"summary-properties-zinc","status":"publish","type":"post","link":"https:\/\/lssq-consulting.com\/en\/summary-properties-zinc\/","title":{"rendered":"Summary of some (important) properties of zinc"},"content":{"rendered":"<ul>\n<li>As we all know, or at least we all know that at some point we have been in contact with this metal, zinc is grayish white or bluish white. It has a metallic luster, can take on a high gloss, and quickly tarnishes with ordinary air.<\/li>\n<li>When zinc is crushed, its microstructure becomes homogeneous and its hardness increases. Annealing restores the crystal structure. Molten metal &#8220;cries&#8221; weaker than tin.<\/li>\n<li>Zinc is brittle at normal temperatures, but becomes malleable and ductile between 100 \u00b0C and 150 \u00b0C. Metal is hot rolled on a large scale, but still malleable enough after heating to be able to re-roll or stretch it of wire. Above 205 \u00b0C, zinc is again brittle enough to be pulverized in a mortar.<\/li>\n<li>Zinc has a clearly plastic behavior between 200 \u00b0C and 400 \u00b0C, and hot metal can be structed through an opening.<\/li>\n<li>The density of zinc distilled at 20-24 \u00b0C is 6.9225 g \/ ml, increases to 7.12722 g \/ ml after compression by 10,000 atmospheres, but varies with the history of the metal and generally decreases with &#8220;work &#8221;<br \/>\nSchiff found that the density of granulated zinc at 12 \u00b0C varies between 6,966 to 6,975 g \/ ml, and recorded the determinations by other observers to vary between 6,861 to 7.1908 g \/ ml. According to Kalischer, a coiled zinc specimen of density 7.1812 has a density of 7.1841 when crystallizing between 130-300 \u00b0C.<\/li>\n<li>The density of zinc decreases when melting according to the following expression: D = 6.59 &#8211; 0.00097 (T-419), for any temperature T. The slight contraction during solidification adapts the metal to the castings.<br \/>\nThe vapor density of zinc corresponds to a monatomic molecule. When zinc dissolves into mercury, it depresses the vapor pressure as if its molecule were monatomic.<\/li>\n<li>Zinc melts at 419.4 \u00b0C. The latent heat of fusion of zinc is approximately 1,730 Cal.<\/li>\n<li>Berthelot found that 920 \u00b0C is the boiling point of zinc. Previous researchers had found higher temperatures. It has recently been assigned 918 \u00b0C as the boiling point.<\/li>\n<li>In a vacuum, zinc slowly volatilizes at 184 \u00b0C and boils at 550 \u00b0C. According to Heycock and Lamplough, the boiling point is altered by 0.133 \u00b0C per mm. difference from normal pressure.<\/li>\n<li>Thermal conductivity decreases with temperature to its melting point. Subsequently there is a sharp decline followed by another gradual increase. According to Lees, the thermal conductivity of redistilled and pure molten zinc ranges from 0.20 to -170 \u00b0C to 0.268 to 18 \u00b0C. According to Jager and Diesselhorst, it is 0.265 to 18 \u00b0C for pure molten zinc and 0.262 to 100 \u00b0C.<\/li>\n<li>The linear expansion coefficient is 10.06 \u00d7 10-6 between -183 \u00b0C and 12.6 \u00b0C, and 17.11 \u00d7 10-6 between 19.3 \u00b0C and 100.2 \u00b0C.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>As we all know, or at least we all know that at some point we have been in contact with this metal, zinc is grayish white or bluish white. It has a metallic luster, can take on a high gloss, and quickly tarnishes with ordinary air. When zinc is crushed, its microstructure becomes homogeneous and&hellip;<\/p>\n<p class=\"more-link\"><a href=\"https:\/\/lssq-consulting.com\/en\/summary-properties-zinc\/\" class=\"themebutton2\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,46,59,43],"tags":[129,128,130],"class_list":["post-1498","post","type-post","status-publish","format-standard","hentry","category-consulting","category-hot-dip-halvanizing","category-lean-galvanizing-en","category-zinc-en","tag-best-practices","tag-hot-dip-galvanizing","tag-zinc-en"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/posts\/1498","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/comments?post=1498"}],"version-history":[{"count":0,"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/posts\/1498\/revisions"}],"wp:attachment":[{"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/media?parent=1498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/categories?post=1498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lssq-consulting.com\/en\/wp-json\/wp\/v2\/tags?post=1498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}