Lab safety rules, safety symbols and tools

Download Lab safety rules, safety symbols and tools

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<ul><li><p>LAB SAFETY RULES, SAFETY SYMBOLS AND</p><p>LAB TOOLS</p><p>EXPERIMENTAL SKILLS (PART 1)</p></li><li><p>LAB SAFETY RULES</p></li><li><p>1. 2.</p></li><li><p>3. 4.</p></li><li><p>5.</p></li><li><p>6.</p><p>7.</p></li><li><p>8. 9. 10.</p></li><li><p>SAFETY SYMBOLS</p></li><li><p>This symbol means that a substance is </p><p>self-reactive and can explode if not </p><p>handled correctly.</p><p>Explosive Highly Flammable</p><p>This symbol warns you that a chemical </p><p>will catch fire easily.</p></li><li><p>Corrosive</p><p>This symbol tells you that a chemical </p><p>will attack your skin if you get it on </p><p>you.</p><p>Toxic</p><p>This symbol means that a chemical is poisonous. Poisons can kill.</p></li><li><p>Radioactive</p><p>This symbol means emits radiation or </p><p>which causes health hazards.</p><p>Environmental danger</p><p>This symbol means that if used wrongly, it could cause harm to the </p><p>environment.</p></li><li><p>Oxidising</p><p>Oxidising substances do not burn </p><p>themselves, but they provide oxygen for </p><p>flammable substances to burn.</p><p>Gas pressure</p><p>Pressurized gas, keep away from heat.</p></li><li><p>Health hazard</p><p>Substance is irritant or hazardous.</p><p>Irritant</p><p>Dilute solutions of acids and alkalis are </p><p>labelled with the 'irritant' symbol. </p><p>Anyone using an irritant substance should </p><p>take care to wash any spills off their skin </p><p>immediately..</p></li><li><p>LAB TOOLS</p></li><li><p>When you perform an investigation and then, afterwards, write down what happened; you may need to draw how the apparatus was arranged.</p><p>To save time in science, there are special ways to draw the apparatus. </p><p>In the next set of slides, you will know names of different apparatus, the use and 2D drawing of each apparatus.</p></li><li><p>TEST TUBE</p><p>Used to hold, mix </p><p>or heat small </p><p>quantities of </p><p>liquids or solids.</p></li><li><p>BEAKER</p><p>simple container for stirring, mixing </p><p>and heating liquids commonly used </p><p>in many laboratories.</p><p>Most also have a small spout (or </p><p>"beak") to aid pouring.</p></li><li><p>CONICAL FLASK</p><p>Used for mixing, heating, </p><p>cooling, dissolving, </p><p>precipitation and boiling.</p></li><li><p>BUNSEN BURNER</p><p> Apparatus for supplying heat </p><p> The gas used is methane </p><p>which reacts with oxygen from </p><p>air, forming carbon dioxide and </p><p>water that escape as gases.</p></li><li><p>TRIPOD AND GAUZE</p><p>tripod</p><p>gauzeIs used as a platform to hold </p><p>and support glassware, such </p><p>as beakers and flasks while </p><p>heating in experiments .</p></li><li><p>CLAMP AND STAND</p><p>stand</p><p>clamp Holds test tubes, Round bottom flasks for </p><p>distillation experiments </p><p>,and other equipment </p><p>such as burettes; which </p><p>are most often used </p><p>in titration experiments.</p></li><li><p>FUNNEL AND FILTER PAPER</p><p>Funnel</p><p>Filter paper</p><p>used for separating solids </p><p>from liquids via filtering, </p><p>Using filter paper.</p></li><li><p>ROUND BOTTOM &amp; FLAT BOTTOM FLASK</p><p>Used for heating liquids. </p><p>The design of the flat-</p><p>bottomed flask allows it to </p><p>stand alone on the lab bench.</p><p> Used for heating or boiling </p><p>liquids.</p><p> Cant stand alone on lab </p><p>bench so should be used with </p><p>clamp and stand.</p><p>More efficient heating than </p><p>flat bottom flask.</p></li><li><p>SEPARATING FUNNEL</p><p>Used to separate liquids that </p><p>dont dissolve. </p><p>Ex: oil and water</p></li><li><p>DELIVERY TUBE</p><p> The delivery tube converts any </p><p>liquid or gas flowing through </p><p>a Rubber tube into a free flow.</p><p> A rubber tube can be </p><p>connected to or from the top of </p><p>the tube.</p></li></ul>