Lab Equipment Review Beaker Used as containers or

Lab Equipment Review

Beaker Used as containers or for rough measurement: sizes are 100 ml, 150 ml, 250 ml, 400 ml, 600 ml and 1 L, may be heated • will not release gases when reacted, or are unlikely to splatter if stirred

Buret Glass and Teflon; used to measure volumes for Titrations 50 or 100 ml

Graduated Cylinder • • • used to measure volumes of liquids; probably your best everyday measuring tool, there are three sizes in your desk: 10, 50 and 100 m. L NOT To be used for Mixing Chemicals NOTE the Rubber Stompers The top plastic bumper ALWAYS stays at the top, to prevent breakage if it falls over.

Erlenmeyer Flask Note size Pyrex, Erlenmeyer flasks hold and/or heat solids or liquids that may release gases during a reaction, or that are likely to splatter if stirred. 50 ml, 125 ml, 250 ml

Triple Beam Balance Metal; used to measure masses of substances in Grams

Weigh Boat • Weighing boats are used for holding and determining the mass of solid chemicals . • Never put chemicals directly on the balance • scale – they will leave a contaminating residue. • We can also use paper squares.

Dropper Pipette • The dropper pipet is used to transfer a small volume of liquid, usually one drop at a time – you have both short and long pipets. • On top of each dropper is a “rubber bulb” for suction – never put your mouth on the dropper to provide suction.

Funnel Glass OR Plastic 1) aid in the transfer of liquids from one vessel to another, and 2) hold filter paper while filtering.

Petri Dish

Volumetric Flask • Pyrex or kimax; • Used to make solutions with exact amounts • sizes: 100 ml, 250 ml, 500 ml, and 1 L • DO NOT HEAT

Hot Plate • hot plates are generally used to heat glassware or its contents • Hot plates will be • used to gently heat any flammable chemicals.

Bunsen Burner • Burners are used for the heating of nonflammable liquids and solids • In order to get the best flame, you might need to make adjustments each time you use the burner – practice this!

Microscope

Ring Stand • Ring clamps connect to a ring stand, and when used with a wire gauze provide a stable, elevated platform for a beaker to rest when heated • Will hold a clay triangle and funnel during filtering, and will be used with a clay triangle to hold a crucible when they are heated.

Scoopula • Metal, used to transfer solid chemicals • used for smaller quantities

Test Tube • Used for reactions • May be heated • Sizes: 13 mmx 100 mm and 20 mmx 150 mm • Brush- used to clean glasswear with small diameters. Use correct size

Striker

Hot Mitts

Gloves

Stir Rods • Glass • Used to stir or pour liquids

Chemical Disposal Containers

Fume Hood

Test Tube Rack • Wood or Plastic • Holds test tubes in vertical position • Used during reactions or after cleaning test tubes

Test Tube Clamp • Metal or plastic • May be fastened to ring stand to support lab apparatus, glassware or other equipment • Types: clamp holder • Ring clamp • Test tube clamp • 3 -prong clamp • And double buret clamp

Beaker Tongs • Beaker tongs are used to hold and move beakers containing hot liquids. • Note the rubber coating to improve grip on the glass beaker • - do not hold these in a burner flame.

Crucible Tongs • For handling hot crucibles and their covers; also used to pick up other small hot objects - NOT to be used for picking up beakers!

Tweezers • Forceps are used to hold or pick up small objects – Remember: it is best to never touch chemicals with your hands

Dropper

Mortar and Pestle • Glass or Porcelain • Used to grind large solid chunks into powders

Ceramic Square Ceramic material Is placed under hot equipment or glassare

Parafilm

Safety Goggles

Lab Aprons

Micropipette

Centrifuge

Hot Water Bath

Gel Electrophoresis

Thin Layer Chromatography

Water Distiller

Incubator

Eye Wash Fountain

Fire Extinguisher

Safety Shower

Broken Glass Disposal

p. H Meter / probe

Dissecting Microscope

Filter Paper

Kim Wipes

Clay Triangle • Wire frame with porcelain rods • Placed on a ring clamp to hold a crucible while heating

Crucible and cover The CRUCIBLE and its COVER are used to hold small amounts of chemicals during heating at high temperatures, especially if you want to keep oxygen out of the reaction (just put the cover on the crucible).

Ring Stand • Vertical metal rod fixed to a heavy metal base • Used as a support for many pieces of lab equipment