Laboratory Materials

• Instruments for measuring mass

  • Triple Beam Balance
  • Analytical (Electronic) balance
• Triple Beam Balance


  Used for obtaining mass of an object and chemical substance
• Analytical (Electronic) balance


  The most common type in which the balance pan is placed over an electromagnet
• Beakers


  Used for holding liquids and water, mixing solutions, and heating the liquids
• Test tubes


  Small cylindrical vessels for holding small amounts of liquids for mixing and heating
• Erlenmeyer flask


  A narrow-mouthed container used to transport heat or store substances
• Graduated cylinder


  Used for measuring approximate amounts of liquids
• Volumetric flask


  A flask calibrated to contain a precise volume at a particular temperature, used for precise dilution and creating standard solutions
• Florence flask


  A flask with a round body and flat bottom, used to hold and heat liquids evenly
• Pipet


  Used to deliver a specified volume of solution
• Types of pipets

  • Graduated pipet
  • Transfer pipet
  • Digital pipets
  • Syringes
• Burettes


  Used for measuring specific amounts of liquids during titration
• Leibig condenser


  The most common type of condenser, has an inner tube through which vapor flows, surrounded by a “jacket” through which cool water passes and condenses the vapor
• Filter funnel


  Used to pour liquids into containers with small openings and to hold filter paper
• Buchner flask


  Used in conjunction with the Buchner funnel in vacuum filtration
• Separatory funnel


  Used for separating solutions or liquids of different densities
• Evaporating dish


  Used to evaporate excess solvents to create more concentrated solutions
• Mortar and pestle


  Used to grind chemicals or substances into powder form
• Watch glass


  Used for keeping the contents in a beaker from splattering
• Wash bottle


  Used to wash down specific pieces of equipment with water or keep materials moist
• Micropipets


  Used to measure and dispense very small amounts of liquids
• Dropper (Pasteur Pipet)


  Used to measure and obtain small amounts of liquids (not precise)
• Ring stand


  Supports the Bunsen burner, iron ring, pipestem triangle, and other items while heating a substance
• Pipestem triangle


  Supports the crucible when being heated over an open flame
• Bunsen burner


  Used for heating chemical mixtures or contents in the lab
• Iron ring

  Supports a beaker over a Bunsen burner
• Utility clamp


  Used to hold a test tube or other piece of equipment in place on a ring stand
• Wire gauze


  Used for suspending glassware over the Bunsen burner
• Tongs


  Used for transporting a hot beaker and removing lids from crucibles
• Forceps


  Used in dissection to grasp tissues or pick up small items
• File


  Used to grind down materials or sharpen items
• Wire brush


  Used to clean the inside of test tubes or graduated cylinders
• Test tube rack


  For holding many test tubes filled with chemicals or for drying after washing
• Test tube clamp


  For heating contents in a tube
• Spatula


  For measuring and/or removing small amounts of solids or powders when obtaining mass
• Corks


  Used to seal or stop flasks and tubes
• Thermometer


  Used to measure temperature
• Hot plate

  Used for consistent heat, used to heat substances that may be flammable
• Well plates


  For mixing very small amounts of chemicals together and comparing results
• General Class of Glasswares

  • Qualitative Glasswares
  • Quantitative Glasswares
  • Procedural Glasswares