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<h2 class="title">Hazard Signs</h2>
<p>The table below lists some of the common hazards signs that you may encounter. You should know what all of these mean.</p>
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<p><strong>Meaning</strong></p>
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<p>Corrosive. Chemicals with this label can burn your skin and eyes and burn <a data-lesson="the-structures-of-ionic-crystals" data-subject="chemistry" data-tutorial="liquids-and-solids" href="https://app.ulearngo.com/chemistry/liquids-and-solids/the-structures-of-ionic-crystals">holes</a> in your clothes. An example is hydrochloric acid.</p>
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<p>Environmentally harmful. Chemicals with this label are damaging to the environment. An example is CFC's.</p>
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<p>Explosive. Chemicals with this label explode easily. An example is lead azide.</p>
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<p>Flammable. Chemicals with this label can catch fire easily. Example: methanol</p>
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<p>Harmful. Chemicals labelled with this are generally considered to be damaging to humans.</p>
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<p>Irritant. Chemicals with this label cause irritation to your eyes and skin. An example is <a data-lesson="hydrogen-reactions" data-subject="chemistry" data-tutorial="metals-metalloids-nonmetals" href="https://app.ulearngo.com/chemistry/metals-metalloids-nonmetals/hydrogen-reactions">hydrogen</a> peroxide.</p>
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<p>Oxidising. Chemicals with this label contain <a data-lesson="occurrence-preparation-and-compounds-of-oxygen" data-subject="chemistry" data-tutorial="metals-metalloids-nonmetals" href="https://app.ulearngo.com/chemistry/metals-metalloids-nonmetals/occurrence-preparation-and-compounds-of-oxygen">oxygen</a> that may cause other <a data-lesson="materials" data-subject="chemistry" data-tutorial="classification-of-matter" href="https://app.ulearngo.com/chemistry/classification-of-matter/materials">materials</a> to combust. An example is potassium dichromate.</p>
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<p>Toxic. Chemicals with this label are highly toxic. An example is mercury.</p>
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<h3>Notes and Information</h3>
<p>You can find safety data sheets at <em>http://www.msds.com/</em>. You should always look at these data sheets anytime you work with a new chemical. These data sheets contain information about how to work with chemicals and what dangers the chemicals pose to you and the environment. You should always try dispose of chemicals correctly and safely. Many chemicals cannot simply be washed down the sink.</p>
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Hazard Signs

Chemistry generally explores the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances. 

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Hazard Signs

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