{"id":113,"date":"2024-10-24T21:22:43","date_gmt":"2024-10-25T01:22:43","guid":{"rendered":"https:\/\/sites.temple.edu\/chemdemo\/?p=113"},"modified":"2024-10-25T16:22:01","modified_gmt":"2024-10-25T20:22:01","slug":"magnesium-in-dry-ice","status":"publish","type":"post","link":"https:\/\/sites.temple.edu\/chemdemo\/2024\/10\/24\/magnesium-in-dry-ice\/","title":{"rendered":"Magnesium in Dry Ice"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Materials Needed<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2 slabs of CO\u2082 (order from Airgas dry ice)<\/li>\n\n\n\n<li>Kiln brick (obtain from Dave Plasket)<\/li>\n\n\n\n<li>Warm water<\/li>\n\n\n\n<li>Mg wire<\/li>\n\n\n\n<li>Mg turnings<\/li>\n\n\n\n<li>Bunsen burner<\/li>\n\n\n\n<li>Airline (for air supply)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Procedure<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Preparation of CO\u2082 Slabs<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Create Wells:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Obtain two slabs of CO\u2082.<\/li>\n\n\n\n<li>In the center of each slab, make wells approximately 3 inches across and about \u00bd the depth of the slab.<\/li>\n\n\n\n<li>Start by adding a drop of warm water to soften the ice.<\/li>\n\n\n\n<li>Use air from the airline to help form the well, applying warm water as needed.<\/li>\n\n\n\n<li><strong>Caution:<\/strong> Do not attempt to chisel a hole in the ice, as this will split the slab.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Assembly<\/h3>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Set Up the Experiment:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Place one slab of dry ice on a kiln brick.<\/li>\n\n\n\n<li>Create a wick from Mg wire by folding it into a zigzag pattern.<\/li>\n\n\n\n<li>Place the wick into the well of the dry ice slab.<\/li>\n\n\n\n<li>Fill the well with Mg turnings.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ignition<\/h3>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Ignite and Observe:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ignite the wick with a Bunsen burner.<\/li>\n\n\n\n<li>Once the Mg has started to burn, quickly invert the other slab over the Mg, ensuring the well is positioned over it.<\/li>\n\n\n\n<li>Allow the reaction to proceed.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Demonstration<\/h3>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>Comparison:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Be sure to demonstrate what a regular fire does in CO\u2082 to illustrate the differences in combustion.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Safety Precautions<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Conduct the experiment in a well-ventilated area or fume hood.<\/li>\n\n\n\n<li>Wear appropriate personal protective equipment (PPE), including gloves and goggles.<\/li>\n\n\n\n<li>Handle dry ice carefully to avoid frostbite.<\/li>\n<\/ul>\n\n\n\n<p>This experiment demonstrates the combustion of magnesium in a carbon dioxide environment, providing insights into the behavior of fire and combustion in different atmospheric conditions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Materials Needed Procedure Preparation of CO\u2082 Slabs Assembly Ignition Demonstration Safety Precautions This experiment demonstrates the combustion of magnesium in a carbon dioxide environment, providing&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/sites.temple.edu\/chemdemo\/2024\/10\/24\/magnesium-in-dry-ice\/\">Continue Reading<span class=\"screen-reader-text\">Magnesium in Dry Ice<\/span><\/a><\/div>\n","protected":false},"author":36673,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-113","post","type-post","status-publish","format-standard","hentry","category-demonstrations","entry"],"_links":{"self":[{"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/posts\/113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/users\/36673"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/comments?post=113"}],"version-history":[{"count":1,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/posts\/113\/revisions"}],"predecessor-version":[{"id":114,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/posts\/113\/revisions\/114"}],"wp:attachment":[{"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/media?parent=113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/categories?post=113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/tags?post=113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}