Lab safety rules, safety symbols and tools

Download Lab safety rules, safety symbols and tools

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  • LAB SAFETY RULES, SAFETY SYMBOLS AND

    LAB TOOLS

    EXPERIMENTAL SKILLS (PART 1)

  • LAB SAFETY RULES

  • 1. 2.

  • 3. 4.

  • 5.

  • 6.

    7.

  • 8. 9. 10.

  • SAFETY SYMBOLS

  • This symbol means that a substance is

    self-reactive and can explode if not

    handled correctly.

    Explosive Highly Flammable

    This symbol warns you that a chemical

    will catch fire easily.

  • Corrosive

    This symbol tells you that a chemical

    will attack your skin if you get it on

    you.

    Toxic

    This symbol means that a chemical is poisonous. Poisons can kill.

  • Radioactive

    This symbol means emits radiation or

    which causes health hazards.

    Environmental danger

    This symbol means that if used wrongly, it could cause harm to the

    environment.

  • Oxidising

    Oxidising substances do not burn

    themselves, but they provide oxygen for

    flammable substances to burn.

    Gas pressure

    Pressurized gas, keep away from heat.

  • Health hazard

    Substance is irritant or hazardous.

    Irritant

    Dilute solutions of acids and alkalis are

    labelled with the 'irritant' symbol.

    Anyone using an irritant substance should

    take care to wash any spills off their skin

    immediately..

  • LAB TOOLS

  • When you perform an investigation and then, afterwards, write down what happened; you may need to draw how the apparatus was arranged.

    To save time in science, there are special ways to draw the apparatus.

    In the next set of slides, you will know names of different apparatus, the use and 2D drawing of each apparatus.

  • TEST TUBE

    Used to hold, mix

    or heat small

    quantities of

    liquids or solids.

  • BEAKER

    simple container for stirring, mixing

    and heating liquids commonly used

    in many laboratories.

    Most also have a small spout (or

    "beak") to aid pouring.

  • CONICAL FLASK

    Used for mixing, heating,

    cooling, dissolving,

    precipitation and boiling.

  • BUNSEN BURNER

    Apparatus for supplying heat

    The gas used is methane

    which reacts with oxygen from

    air, forming carbon dioxide and

    water that escape as gases.

  • TRIPOD AND GAUZE

    tripod

    gauzeIs used as a platform to hold

    and support glassware, such

    as beakers and flasks while

    heating in experiments .

  • CLAMP AND STAND

    stand

    clamp Holds test tubes, Round bottom flasks for

    distillation experiments

    ,and other equipment

    such as burettes; which

    are most often used

    in titration experiments.

  • FUNNEL AND FILTER PAPER

    Funnel

    Filter paper

    used for separating solids

    from liquids via filtering,

    Using filter paper.

  • ROUND BOTTOM & FLAT BOTTOM FLASK

    Used for heating liquids.

    The design of the flat-

    bottomed flask allows it to

    stand alone on the lab bench.

    Used for heating or boiling

    liquids.

    Cant stand alone on lab

    bench so should be used with

    clamp and stand.

    More efficient heating than

    flat bottom flask.

  • SEPARATING FUNNEL

    Used to separate liquids that

    dont dissolve.

    Ex: oil and water

  • DELIVERY TUBE

    The delivery tube converts any

    liquid or gas flowing through

    a Rubber tube into a free flow.

    A rubber tube can be

    connected to or from the top of

    the tube.