{"id":2065,"date":"2015-08-11T15:49:39","date_gmt":"2015-08-11T20:49:39","guid":{"rendered":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/?page_id=2065"},"modified":"2023-06-07T08:12:19","modified_gmt":"2023-06-07T13:12:19","slug":"hw-stop-can-you-mix-your-wastes","status":"publish","type":"page","link":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/hw-stop-can-you-mix-your-wastes\/","title":{"rendered":"HW \u2013\u00a0STOP!!  Can You Mix Your Wastes?"},"content":{"rendered":"<div data-modular-content-collection><h4>WARNING! \u00a0Before you pour two different chemicals into your hazardous waste container YOU\u00a0MUST CHECK TO MAKE SURE THAT THE WASTES ARE COMPATIBLE!!<\/h4>\n<figure id=\"attachment_2063\" aria-describedby=\"caption-attachment-2063\" style=\"width: 200px\" class=\"wp-caption alignright\"><a href=\"https:\/\/wp.stolaf.edu\/chemical-hygiene\/files\/2015\/08\/WasteStreams.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2063\" data-permalink=\"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wastestreams\/\" data-orig-file=\"https:\/\/wp.stolaf.edu\/chemical-hygiene\/files\/2015\/08\/WasteStreams.png\" data-orig-size=\"469,359\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"WasteStreams\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/wp.stolaf.edu\/chemical-hygiene\/files\/2015\/08\/WasteStreams.png\" class=\"wp-image-2063\" src=\"https:\/\/wp.stolaf.edu\/chemical-hygiene\/files\/2015\/08\/WasteStreams-300x230.png\" alt=\"WasteStreams\" width=\"200\" height=\"154\" \/><\/a><figcaption id=\"caption-attachment-2063\" class=\"wp-caption-text\">http:\/\/publicsafety.tufts.edu\/<\/figcaption><\/figure>\n<p>There have been a number of laboratory accidents and explosions at colleges and universities in recent\u00a0years that involved\u00a0the mixing of incompatible chemicals\u00a0that have resulted in personal injury and physical destruction. \u00a0Some of these incidences occurred during experimental use while many other incidents involved the improper mixing of hazardous wastes.<br \/>\n<strong>Don\u2019t Know? \u00a0Don\u2019t Do It!<\/strong> \u00a0ASK if you are unsure if chemical wastes can be combined!<\/p>\n<hr \/>\n<span class=\"collapseomatic arrowleft\" id=\"id69e7db94b7f66\"  tabindex=\"0\" title=\"&lt;strong&gt;USE THESE INTERACTIVE WEBSITES TO DETERMINE IF CHEMICALS CAN BE MIXED&lt;\/strong&gt;\"    ><strong>USE THESE INTERACTIVE WEBSITES TO DETERMINE IF CHEMICALS CAN BE MIXED<\/strong><\/span><div id=\"target-id69e7db94b7f66\" class=\"collapseomatic_content \">\n<ul>\n<li><a href=\"http:\/\/rehs.rutgers.edu\/pdf_files\/Chemical_compatibility.html\" target=\"_blank\" rel=\"noopener\">EPA\u00a0Chemical Compatibility Chart<\/a><\/li>\n<li><a href=\"http:\/\/response.restoration.noaa.gov\/reactivityworksheet\" target=\"_blank\" rel=\"noopener\">NOAA Chemical Reactivity Worksheet<\/a><\/li>\n<li>Use the Univ Minnesota <a href=\"http:\/\/www.dehs.umn.edu\/hazwaste_chemwastereg.htm\" target=\"_blank\" rel=\"noopener\">Chemical Waste Registry<\/a>\u00a0and <a href=\"https:\/\/wp.stolaf.edu\/chemical-hygiene\/files\/2015\/04\/DDC-Groupings.pdf\" target=\"_blank\" rel=\"noopener\">this chart<\/a>. \u00a0Only chemicals whose DDCs fall in the same\u00a0column can be stored next to each other.<\/li>\n<li><strong>Don&#8217;t Know? \u00a0Don&#8217;t Do It!<\/strong> \u00a0ASK if you are unsure if chemical wastes can be combined!<\/li>\n<\/ul>\n<\/div><br class=\"none\" \/><br class=\"none\" \/><span class=\"collapseomatic arrowleft\" id=\"id69e7db94b800c\"  tabindex=\"0\" title=\"&lt;strong&gt;NITRIC AID \u2013 Use a Vented Lid; DO NOT MIX WITH Organic Solvents or Organic Acids&lt;\/strong&gt;\"    ><strong>NITRIC AID \u2013 Use a Vented Lid; DO NOT MIX WITH Organic Solvents or Organic Acids<\/strong><\/span><div id=\"target-id69e7db94b800c\" class=\"collapseomatic_content \">\n<ul>\n<li><a href=\"https:\/\/vimeo.com\/163014970\" target=\"_blank\" rel=\"noopener\">This video explains the hazards of mixing nitric acid with other wastes<\/a>.<\/li>\n<li>Do not mix Nitric Acid Waste with:\n<ul>\n<li>Acetic Acid; Acetic Anhydride; Acetone; Acetonitrile; Acrylonitrile; Alcohols; Aldehydes; Alkali Metals; Ammonia; Cyanides; Powdered Metals; other Organic\u00a0Substances<\/li>\n<\/ul>\n<\/li>\n<li>\u201c\u2026Nitric\u00a0Acid<em> is the common chemical most frequently involved in reactive incidents, and this is a reflection of its exceptional ability to function as an effective oxidant even under fairly dilute conditions (unlike sulfuric acid) or at ambient temperature (unlike perchloric acid). \u00a0Its other notable ability to oxidize most organic compounds to gaseous carbon dioxide, coupled with its own reduction to gaseous \u2018nitrous fume\u2019 has been involved in many incidents in which closed, or nearly closed reaction vessels &#8230;\u00a0have failed from internal gas pressure.\u201d \u00a0<\/em>(Bretherick 1990)<\/li>\n<li><strong>Use a Vented Lid<\/strong><strong>. \u00a0<\/strong><em>If\u00a0you do have Nitric Acid mixed with other substances, then you must use the vented screw-top lids that we have in stock in RNS 341.<\/em>\n<ul>\n<li>Watch\u00a0<a href=\"https:\/\/vimeo.com\/143902401\" target=\"_blank\" rel=\"noopener\">this short video demonstration<\/a> on the effectiveness of vented caps.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div><br class=\"none\" \/><br class=\"none\" \/><span class=\"collapseomatic arrowleft\" id=\"id69e7db94b808a\"  tabindex=\"0\" title=\"&lt;strong&gt;Some Examples of Recent Laboratory Accidents from Mixing Incompatible Chemicals&lt;\/strong&gt;\"    ><strong>Some Examples of Recent Laboratory Accidents from Mixing Incompatible Chemicals<\/strong><\/span><div id=\"target-id69e7db94b808a\" class=\"collapseomatic_content \">\n<ul>\n<li><a href=\"http:\/\/www.depts.ttu.edu\/vpr\/integrity\/lessons-learned\/February-2015.php\" target=\"_blank\" rel=\"noopener\">Nitric Acid Example 1<\/a><\/li>\n<li><a href=\"https:\/\/www.drs.illinois.edu\/News\/Nitric-Acid-Alert\" target=\"_blank\" rel=\"noopener\">Nitric Acid Example 2<\/a><\/li>\n<li><a href=\"http:\/\/ehs.wustl.edu\/resources\/EHS%20Documents\/EHS%20Safety%20Alert%20-%20Managing%20Nitric%20Acid%20Waste.pdf\" target=\"_blank\" rel=\"noopener\">Nitric Acid Example 3<\/a><\/li>\n<\/ul>\n<\/div>\n<p><!-- begin-migrated-from-panel-builder --><!-- end-migrated-from-panel-builder --><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>WARNING! \u00a0Before you pour two different chemicals into your hazardous waste container YOU\u00a0MUST CHECK TO MAKE SURE THAT THE WASTES ARE COMPATIBLE!! There have been a number of laboratory accidents [&hellip;]<\/p>\n","protected":false},"author":156,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-2065","page","type-page","status-publish","hentry"],"acf":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wp-json\/wp\/v2\/pages\/2065","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wp-json\/wp\/v2\/users\/156"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wp-json\/wp\/v2\/comments?post=2065"}],"version-history":[{"count":26,"href":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wp-json\/wp\/v2\/pages\/2065\/revisions"}],"predecessor-version":[{"id":5651,"href":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wp-json\/wp\/v2\/pages\/2065\/revisions\/5651"}],"wp:attachment":[{"href":"https:\/\/wp.stolaf.edu\/chemical-hygiene\/wp-json\/wp\/v2\/media?parent=2065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}