{"id":17,"date":"2026-10-02T11:49:50","date_gmt":"2026-10-02T10:49:50","guid":{"rendered":"https:\/\/mapdow.com\/?p=17"},"modified":"2026-10-02T11:49:50","modified_gmt":"2026-10-02T10:49:50","slug":"n%e2%82%82o-critical-properties-36-4c-temperature-72-7-bar-pressure","status":"publish","type":"post","link":"https:\/\/mapdow.com\/?p=17","title":{"rendered":"N\u2082O Critical Properties: 36.4\u00b0C Temperature, 72.7 Bar Pressure"},"content":{"rendered":"<p>Understanding the critical point of nitrous oxide is essential for process design, pipeline engineering, and storage system specifications. N\u2082O has a critical temperature of 36.4\u00b0C and critical pressure of 72.7 bar, positioning it as a fluid that can readily undergo supercritical conditions at or near ambient temperatures.<\/p>\n<h2>Critical Point Significance<\/h2>\n<p>Above 36.4\u00b0C and 72.7 bar, N\u2082O exists as a supercritical fluid exhibiting properties intermediate between liquid and gas \u2014 high density with low viscosity and high diffusivity. This enables applications in supercritical extraction and novel chemical processing.<\/p>\n<div class=\"chem-data-box\">\n<div class=\"label\">Critical Temperature<\/div>\n<div class=\"value\">Tc = 36.4\u00b0C (309.6 K)<\/div>\n<\/div>\n<div class=\"chem-data-box\">\n<div class=\"label\">Critical Pressure<\/div>\n<div class=\"value\">Pc = 72.7 bar (7.27 MPa)<\/div>\n<\/div>\n<h2>Implications for Storage<\/h2>\n<p>Because the critical temperature is close to ambient, outdoor storage vessels exposed to summer temperatures may approach supercritical conditions. This requires careful vessel sizing with relief valves rated for supercritical discharge conditions and consideration of thermal management.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understanding the critical point of nitrous oxide is essential for process design, pipeline engineering, and storage system specifications. N\u2082O has a critical temperature of 36.4\u00b0C\u2026<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-17","post","type-post","status-publish","format-standard","hentry","category-chemistry"],"_links":{"self":[{"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/posts\/17","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mapdow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17"}],"version-history":[{"count":0,"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/posts\/17\/revisions"}],"wp:attachment":[{"href":"https:\/\/mapdow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mapdow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mapdow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}