{"id":989,"date":"2009-10-19T10:26:34","date_gmt":"2009-10-19T10:26:34","guid":{"rendered":"http:\/\/www.jpyro.com\/wp\/?p=989"},"modified":"2012-04-25T16:35:20","modified_gmt":"2012-04-25T16:35:20","slug":"characteristics-of-the-red-colored-flame-of-firework-compositions","status":"publish","type":"post","link":"http:\/\/www.jpyro.co.uk\/?p=989","title":{"rendered":"Characteristics of the Red Colored Flame of Firework Compositions"},"content":{"rendered":"<p align=\"left\"><strong>Dayu Ding, Daichi Tabata and Tadao Yoshida<\/strong><\/p>\n<p><strong>Abstract::<\/strong> Experiments have been conducted varying the oxygen balance of fi rework compositions and adding a chlorine donor to compositions in order to understand how or why a red fl ame is affected by the oxygen balance and presence of chlorine in the composition. The results show that with a negative oxygen balance, i.e., a fuel-rich composition, the fl ame extends longer, so a deep red fl ame is easily formed. The<br \/>\nresults also show that strontium containing species SrO, SrOH and SrCl can form a red flame. SrO or SrOH is responsible for a deeper red light, SrCl is responsible for a deepest red color. Emissions due to SrO and SrOH can be diminished by the emissions due to SrCl. For forming a red flame, a favorable chlorine donor is not an oxidant like potassium perchlorate but a fuel like chlorinated gum.<\/p>\n<p align=\"justify\"><strong>Keywords:<\/strong>firework composition, red colored flame, chromaticity diagram, oxygen balance<\/p>\n<hr \/>\n<p><strong>Ref:<\/strong> JPyro, Issue 28, 2009, pp51-60<br \/>\n<span class=\"Apple-style-span\">(J28<\/span>_51<span class=\"Apple-style-span\">)<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dayu Ding, Daichi Tabata and Tadao Yoshida Abstract:: Experiments have been conducted varying the oxygen balance of fi rework compositions and adding a chlorine donor to compositions in order to understand how or why a red fl ame is affected by the oxygen balance and presence of chlorine in the composition. The results show that &hellip;<br \/><a href=\"http:\/\/www.jpyro.co.uk\/?p=989\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\">Continue reading <span class=\"screen-reader-text\">Characteristics of the Red Colored Flame of Firework Compositions<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,29],"tags":[],"_links":{"self":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/989"}],"collection":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=989"}],"version-history":[{"count":7,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/989\/revisions"}],"predecessor-version":[{"id":997,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/989\/revisions\/997"}],"wp:attachment":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=989"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}