{"id":17867,"date":"2026-04-19T15:55:50","date_gmt":"2026-04-19T10:25:50","guid":{"rendered":"https:\/\/aluminiummagazine.com\/mag\/?p=17867"},"modified":"2026-04-19T22:35:49","modified_gmt":"2026-04-19T17:05:49","slug":"aluminium-selenide-properties-hazard-guide","status":"publish","type":"post","link":"https:\/\/aluminiummagazine.com\/mag\/aluminium\/compounds\/aluminium-selenide-properties-hazard-guide.html","title":{"rendered":"Aluminium Selenide (Al\u2082Se\u2083): The Complete Guide"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Aluminium selenide is a binary compound of aluminium and selenium. It is a <strong>highly reactive, moisture\u2011sensitive<\/strong> material that decomposes violently in water to release <strong>hydrogen selenide (H\u2082Se)<\/strong> \u2013 an extremely toxic, foul\u2011smelling gas. Due to its instability and toxicity, it is not a consumer product but is used in specialized laboratory and semiconductor applications as a source of <strong>selenium<\/strong> or <strong>H\u2082Se<\/strong>.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">1. <strong>Basic Identification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chemical Formula:<\/strong> Al\u2082Se\u2083<\/li>\n\n\n\n<li><strong>Alternative Names:<\/strong> Aluminium(III) selenide, dialuminum triselenide<\/li>\n\n\n\n<li><strong>Molecular Weight:<\/strong> 290.84 g\/mol<\/li>\n\n\n\n<li><strong>CAS Number:<\/strong> 1302-82-5<\/li>\n\n\n\n<li><strong>Appearance:<\/strong> Yellowish\u2011brown to dark brown\/black powder or brittle, rock\u2011like fragments<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">2. <strong>Physical Properties<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Property<\/th><th class=\"has-text-align-center\" data-align=\"center\">Aluminum Selenide<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Melting Point<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">960\u202f\u00b0C (1760\u202f\u00b0F) (under inert atmosphere)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Density<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">3.43\u202fg\/cm\u00b3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Crystal Structure<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Defect zincblende (or wurtzite variations)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Solubility<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Reacts violently with water; insoluble in organic solvents<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminum selenide is a heavy, brittle solid. In dry, inert conditions, it is stable. However, exposure to even trace moisture triggers rapid decomposition.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">3. <strong>Chemical Behavior &amp; Synthesis<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 Reaction with Water \u2013 Hydrogen Selenide Generation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is the defining chemical reaction of Al\u2082Se\u2083:<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\"><strong>Al\u2082Se\u2083 + 6 H\u2082O \u2192 2 Al(OH)\u2083 + 3 H\u2082Se \u2191<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Observations:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The solid fizzes, warms, and releases <strong>hydrogen selenide (H\u2082Se)<\/strong> gas.<\/li>\n\n\n\n<li>H\u2082Se is <strong>extremely toxic<\/strong> (comparable to hydrogen cyanide), has a characteristic <strong>rotten\u2011egg\/garlic\u2011like odor at low concentrations<\/strong>, and at higher concentrations can cause rapid respiratory failure.<\/li>\n\n\n\n<li>The gas is also flammable and can form explosive mixtures with air.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 Synthesis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Prepared by direct combination of the elements under high heat in an inert, moisture\u2011free atmosphere:<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\"><strong>2 Al + 3 Se + Heat \u2192 Al\u2082Se\u2083<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The reaction is <strong>exothermic<\/strong> and must be controlled. It is typically performed in sealed quartz ampoules or under flowing argon.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">4. <strong>Applications<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminum selenide has <strong>no consumer or large\u2011scale industrial applications<\/strong> due to its extreme moisture sensitivity and toxicity. Its uses are limited to specialized research:<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 Hydrogen Selenide Generator<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In the laboratory, Al\u2082Se\u2083 can be used to generate small, controlled amounts of H\u2082Se by the slow addition of water. H\u2082Se is used in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Semiconductor doping<\/strong> \u2013 introducing selenium into II\u2011VI or III\u2011V materials<\/li>\n\n\n\n<li><strong>Synthesis of other selenium compounds<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 Selenium Source for Materials Science<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Researchers use Al\u2082Se\u2083 as a precursor to incorporate selenium into thin films or nanoparticles under vacuum conditions.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> Most modern semiconductor processes use safer selenium precursors (e.g., H\u2082Se gas cylinders with strict controls) rather than handling Al\u2082Se\u2083 directly.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Safety &amp; Hazard Management<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">GHS Symbol<\/th><th class=\"has-text-align-center\" data-align=\"center\">Meaning<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">\u2620\ufe0f GHS06<\/td><td class=\"has-text-align-center\" data-align=\"center\">Acute toxicity (fatal if inhaled)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\ud83d\udd25 GHS02<\/td><td class=\"has-text-align-center\" data-align=\"center\">Flammable gas (H\u2082Se)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u2757 GHS05<\/td><td class=\"has-text-align-center\" data-align=\"center\">Corrosive (H\u2082Se)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Critical Warning:<\/strong> Aluminum selenide itself is hazardous, but the <strong>real danger<\/strong> is the hydrogen selenide gas it releases upon contact with water or humid air. H\u2082Se is <strong>fatal if inhaled<\/strong> \u2013 it causes pulmonary edema and systemic poisoning.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.1 Health Effects<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Route of Exposure<\/th><th>Effect<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Inhalation (H\u2082Se gas)<\/strong><\/td><td>Pulmonary edema, chemical pneumonia, headache, dizziness, nausea. High concentrations cause rapid collapse and death.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Skin Contact<\/strong><\/td><td>Solid may cause mild irritation. H\u2082Se gas is corrosive to moist skin.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Eye Contact<\/strong><\/td><td>Solid dust is abrasive; H\u2082Se gas causes severe irritation and burns.<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Ingestion<\/strong><\/td><td>Highly toxic \u2013 decomposes in stomach to release H\u2082Se gas internally.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">5.2 Personal Protective Equipment (PPE)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Respiratory:<\/strong> SCBA (Self\u2011Contained Breathing Apparatus) \u2013 <strong>mandatory<\/strong> if there is any risk of moisture contact. N95 masks do NOT protect against H\u2082Se gas.<\/li>\n\n\n\n<li><strong>Hands:<\/strong> Heavy nitrile or butyl rubber gloves<\/li>\n\n\n\n<li><strong>Eyes:<\/strong> Tight\u2011sealing chemical splash goggles + face shield<\/li>\n\n\n\n<li><strong>Body:<\/strong> Fully encapsulating chemical\u2011resistant suit<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5.3 First Aid Measures<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inhalation:<\/strong> Remove victim to fresh air <strong>immediately<\/strong>. Administer oxygen if available. Do <strong>not<\/strong> perform mouth\u2011to\u2011mouth (risk to rescuer). Seek emergency medical attention.<\/li>\n\n\n\n<li><strong>Skin:<\/strong> Brush off dry chemical, then wash with copious water.<\/li>\n\n\n\n<li><strong>Eyes:<\/strong> Flush with water for 15+ minutes; seek ophthalmologist.<\/li>\n\n\n\n<li><strong>Ingestion:<\/strong> Do not induce vomiting. Seek immediate medical help.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5.4 Firefighting Information<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>H\u2082Se gas is flammable and can explode in confined spaces.<\/li>\n\n\n\n<li><strong>Use:<\/strong> Dry sand, Class D powder, or CO\u2082 for small fires. For large fires, evacuate area.<\/li>\n\n\n\n<li><strong>Do NOT use:<\/strong> Water \u2013 this will generate more H\u2082Se gas.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">6. <strong>Storage &amp; Handling<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Container:<\/strong> Sealed glass ampoules or metal containers under inert gas (argon or nitrogen)<\/li>\n\n\n\n<li><strong>Atmosphere:<\/strong> Strictly dry, inert \u2013 never open in humid air<\/li>\n\n\n\n<li><strong>Location:<\/strong> Cool, dry, well\u2011ventilated, locked hazardous materials storage<\/li>\n\n\n\n<li><strong>Incompatibles:<\/strong> Water, moisture, acids, oxidizing agents<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">6.1 Disposal<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Do not discard in trash or down drains. Small quantities can be <strong>slowly hydrolyzed<\/strong> in a fume hood by carefully adding to a large excess of <strong>dilute sodium hydroxide solution<\/strong> (to trap H\u2082Se as sodium selenide), then treated with an oxidizer (e.g., bleach) to convert to non\u2011volatile selenite\/selenate. This must be done by trained professionals.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">7. <strong>Environmental Impact<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hydrogen selenide is highly toxic to aquatic life. Aluminum selenide itself, if released into the environment, will rapidly hydrolyze to H\u2082Se gas (which disperses or oxidizes to elemental selenium) and aluminum hydroxide (inert). Selenium can bioaccumulate but is also an essential trace element at low concentrations. Large spills require hazmat response.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">8. <strong>Comparison with Other Reactive Aluminum Compounds<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Compound<\/th><th class=\"has-text-align-center\" data-align=\"center\">Formula<\/th><th class=\"has-text-align-center\" data-align=\"center\">Gas Released in Water<\/th><th class=\"has-text-align-center\" data-align=\"center\">Toxicity of Gas<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Aluminium Selenide<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Al\u2082Se\u2083<\/td><td class=\"has-text-align-center\" data-align=\"center\">Hydrogen selenide (H\u2082Se)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Extremely toxic (fatal)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Aluminium Sulfide<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Al\u2082S\u2083<\/td><td class=\"has-text-align-center\" data-align=\"center\">Hydrogen sulfide (H\u2082S)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Highly toxic<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Aluminium Carbide<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Al\u2084C\u2083<\/td><td class=\"has-text-align-center\" data-align=\"center\">Methane (CH\u2084)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Flammable, low toxicity<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Aluminium Phosphide<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">AlP<\/td><td class=\"has-text-align-center\" data-align=\"center\">Phosphine (PH\u2083)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Extremely toxic<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">9. <strong>Frequently Asked Questions<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: Does aluminum selenide smell like garlic?<\/strong><br>A: The solid itself has a faint, unpleasant odor, but the real smell comes from hydrogen selenide gas (released upon contact with moisture), which at low concentrations smells like <strong>rotten eggs or garlic<\/strong>. At high concentrations, it can paralyze the sense of smell \u2013 making it even more dangerous.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: Is this used in consumer products?<\/strong><br>A: <strong>Absolutely not.<\/strong> It is a specialist laboratory chemical, restricted to trained researchers. It has no household, medical, or agricultural use.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: What should I do if I suspect a spill?<\/strong><br>A: Evacuate the area immediately, ventilate if possible, and call professional hazmat responders. Do not attempt to clean up without proper training and equipment (SCBA, full suit).<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">10. <strong>Summary Data Sheet<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Property<\/th><th class=\"has-text-align-center\" data-align=\"center\">Value<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Chemical Name<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Aluminum Selenide<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Formula<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Al\u2082Se\u2083<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Appearance<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Yellowish\u2011brown to dark brown powder\/chunks<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Melting Point<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">960\u202f\u00b0C<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Density<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">3.43\u202fg\/cm\u00b3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Defining Trait<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Releases lethal H\u2082Se gas on contact with water<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Primary Utility<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Laboratory source of H\u2082Se or selenium<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Storage<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Sealed, dry, inert atmosphere; strict hazard protocols<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/p><script>document.addEventListener(\"DOMContentLoaded\",function(){\n        if(window.innerWidth <= 768){\n            if (\"immediate\" === \"delay\") {\n                setTimeout(function(){document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\")},0);\n            } else if (\"immediate\" === \"scroll\") {\n                window.addEventListener(\"scroll\",function(){\n                    let s=window.scrollY\/(document.body.scrollHeight-window.innerHeight);\n                    if(s>0.1){\n                        document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\");\n                    }\n                });\n            } else {\n                document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\");\n            }\n        } else {\n            document.querySelectorAll(\".pai-ad\").forEach(el=>el.remove());\n        }\n    });<\/script>","protected":false},"excerpt":{"rendered":"<p>Aluminium selenide is a binary compound of aluminium and selenium. It is a highly reactive, moisture\u2011sensitive material that decomposes violently in water to release hydrogen selenide (H\u2082Se) \u2013 an extremely toxic, foul\u2011smelling gas. Due to its instability and toxicity, it is not a consumer product but is used in specialized laboratory and semiconductor applications as &#8230; <a title=\"Aluminium Selenide (Al\u2082Se\u2083): The Complete Guide\" class=\"read-more\" href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/compounds\/aluminium-selenide-properties-hazard-guide.html\" aria-label=\"Read more about Aluminium Selenide (Al\u2082Se\u2083): The Complete Guide\">Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":18041,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4155],"tags":[4141,4142],"class_list":["post-17867","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-compounds","tag-aluminium-compounds","tag-aluminum-formula"],"_links":{"self":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/17867","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/comments?post=17867"}],"version-history":[{"count":0,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/17867\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/media\/18041"}],"wp:attachment":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/media?parent=17867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/categories?post=17867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/tags?post=17867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}