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AN INTRODUCTION TO LABORATORY EQUIPMENT

AN INTRODUCTION TO LABORATORY EQUIPMENT. By: Ms. Buroker Scott High School. A Chemist.

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AN INTRODUCTION TO LABORATORY EQUIPMENT

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  1. AN INTRODUCTION TO LABORATORY EQUIPMENT By: Ms. Buroker Scott High School

  2. A Chemist In any line of work, a professional is expected to know and understand how to use his or her “tools of the trade;” things are no different in a chemistry lab. This presentation will introduce you to the lab equipment you may be using during the duration of this course.

  3. Arguably … the most important piece of “equipment” you’ll use in lab…

  4. Beaker Beakers are used for the containing or mixing of reagents. Beakers are NOT accurate; therefore, we don’t use beakers to measure amounts!!

  5. Beaker Tongs Used in removing a beaker from a heat source, such as, a Bunsen Burner.

  6. Lab Tongs Can be used to pick up and/or hold many items … such as an evaporating dish or an Erlenmeyer flask.

  7. Buret Buret Clamp A buret is used to deliver solution in precisely-measured, variable volumes. Burets are used primarily for titration, to deliver one reactant until the precise end point of the reaction is reached.

  8. ERLENMEYER FLASK These flasks are typically used to mix chemicals and/or solutions … also not used for accuracy!

  9. VOLUMETRIC FLASK They are used for preparing the exact volume of a sample solution and/or standard solution.

  10. ROUND BOTTOM FLASK The round bottom flask is used as: • reaction flask • distilling flask • collection flask

  11. Florence Flask Also known as the “boiling flask,” the Florence Flask is designed for uniform heating and ease of swirling. Commonly used to store solutions.

  12. GRADUATED CYLINDER Tall cylinder with a range of calibrated markings used for measuring the volumes of liquids in mL.

  13. Test Tubes A tube of glass, closed at one end, used to contain chemicals during heating or other reactions.

  14. Test Tube Rack A device used to safely support test tubes.

  15. Test Tube Clamp A device used to safely hold test tubes without having to use your bare hands … e.g., when heating the test tube.

  16. Test Tube Cleaner Used to clean test tubes

  17. SPATULA …SOMETIMES REFERED TO AS A “SCOOPULA” Used when obtaining dry chemicals from a stock container.

  18. Crucible & Lid Made of porcelain and used to contain chemical compounds when heating them to very high temperatures.

  19. Crucible Tongs Designed to pick up and hold a crucible … especially when hot!!!

  20. EVAPORATING DISH The evaporating dish is used for heating … usually when you want to evaporate a liquid from a chemical.

  21. Watch Glass Typically used as a “beaker cover,” but can also be used to evaporate the liquid from a chemical.

  22. Wire Gauze WIRE GAUZE can be used to support a container (such as a beaker or flask) during heating. When the bunsen burner flame is beneath it, the wire gauze helps to spread the flame (and heat) out evenly over the container.

  23. Ring Stand Ring stands, used along with the appropriate clamp, are used to support and hold glassware in place during an experimental procedures.

  24. Clamps Ring Clamp Utility Clamp Both are used to hold glassware in place on a ring stand.

  25. CLAY TRIANGLE A clay triangle is used as a support such as when heating crucibles or holding a funnel during filtering.

  26. Bunsen Burner The function of a Bunsen Burner is to heat substances. The burner can be regulated by changing the air and gas mixture Inlet Valve

  27. Pipet Used in dispensing small amounts of liquids. Plastic Pipet Dropper Pipet

  28. Last, But Not Least … Funnel Forceps

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