Lab Equipment
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This document summarizes and provides instructions for the safe use of various common pieces of chemistry lab equipment. It includes beakers, Bunsen burners, balances, crucibles, test tubes, pipettes, ring stands, clamps, and other tools used to contain, heat, and transfer chemicals and observe chemical reactions. Proper use and handling of this equipment is important for safety and accuracy in the chemistry lab.
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This document lists and describes common laboratory equipment used in science experiments including: test tubes for holding chemicals, thermometers for measuring temperature, beakers for measuring and pouring liquids, microscopes for examining specimens, balances and scales for measuring mass, pipettes for precise liquid measurements, Bunsen burners and hot plates for heating substances, and various clamps, tongs, dishes, slides and other tools for preparation, handling and analysis. Safety equipment like goggles and gloves are also included.
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This document lists and describes various pieces of lab equipment used in chemistry experiments, including aprons, beakers, bunsen burners, graduated cylinders, hot plates, mortar and pestles, pipettes, ring stands, safety goggles, test tubes, thermometers, balances, crucibles, and other tools for measuring, transferring, heating, and analyzing chemicals and liquids in a laboratory setting.
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The document lists and describes various pieces of lab equipment commonly used in chemistry labs, including beakers, Erlenmeyer flasks, graduated cylinders, test tubes, funnels, crucibles, ring stands, clamps, and other tools used for heating, mixing, transferring, and measuring chemicals and reactions. Safety precautions are noted for several items to avoid exposure to hot substances or breakage. Proper use and storage is emphasized to prevent contamination and damage to equipment.
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This document lists and describes common laboratory tools and their uses. It explains that beakers are used to hold and heat liquids, crucible tongs are used to hold hot objects, test tube brushes clean test tubes, glass plates hold solids, wire gauzes support heated beakers, graduated cylinders measure liquid volumes, mortar and pestles crush solids, droppers transfer small liquid amounts, Erlenmeyer flasks hold and heat large liquid volumes, funnels pour liquids, glass rods stir solutions, iron stands support apparatus, test tubes hold substances, stoppers seal containers, test tube racks hold test tubes, test tube holders grasp heated test tubes, thermometers measure temperatures, tripods support unattached apparatus,
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This presentation will help you understand the common lab glassware & their uses. For more info please visit : https://www.scienceequip.com.au/glassware/
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This document lists and describes common laboratory equipment including safety goggles, test tubes, test tube brushes, test tube holders, test tube racks, beakers, conical flasks, graduated cylinders, funnels, droppers, Bunsen burners, forceps, mercury thermometers, spatulas, and digital balances. It explains what each item is used for, such as holding test tubes, cleaning test tubes, measuring volumes precisely, dropping small amounts of liquids, and moving solids and powders.
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This document lists and describes common laboratory equipment used in science experiments including: test tubes for holding chemicals, thermometers for measuring temperature, beakers for measuring and pouring liquids, microscopes for examining specimens, balances and scales for measuring mass, pipettes for precise liquid measurements, Bunsen burners and hot plates for heating substances, and various clamps, tongs, dishes, slides and other tools for preparation, handling and analysis. Safety equipment like goggles and gloves are also included.
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This document provides descriptions and proper use instructions for 34 pieces of common laboratory equipment. Key equipment includes:
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5. Burners, clays, and rings for supporting containers during heating and reactions.
Proper techniques are outlined for safely performing common tasks like filtering, weighing, volume measurement, and working in the fume hood
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This document lists and describes various pieces of lab equipment used in chemistry experiments, including aprons, beakers, bunsen burners, graduated cylinders, hot plates, mortar and pestles, pipettes, ring stands, safety goggles, test tubes, thermometers, balances, crucibles, and other tools for measuring, transferring, heating, and analyzing chemicals and liquids in a laboratory setting.
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The document lists and describes various pieces of lab equipment commonly used in chemistry labs, including beakers, Erlenmeyer flasks, graduated cylinders, test tubes, funnels, crucibles, ring stands, clamps, and other tools used for heating, mixing, transferring, and measuring chemicals and reactions. Safety precautions are noted for several items to avoid exposure to hot substances or breakage. Proper use and storage is emphasized to prevent contamination and damage to equipment.
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This document lists and describes common laboratory tools and their uses. It explains that beakers are used to hold and heat liquids, crucible tongs are used to hold hot objects, test tube brushes clean test tubes, glass plates hold solids, wire gauzes support heated beakers, graduated cylinders measure liquid volumes, mortar and pestles crush solids, droppers transfer small liquid amounts, Erlenmeyer flasks hold and heat large liquid volumes, funnels pour liquids, glass rods stir solutions, iron stands support apparatus, test tubes hold substances, stoppers seal containers, test tube racks hold test tubes, test tube holders grasp heated test tubes, thermometers measure temperatures, tripods support unattached apparatus,
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Science PowerPoints
BIOLOGY SBA (LAB)
This document summarizes two biology lab reports by a student. The first lab involved classifying 10 organisms found around the student's school into their scientific kingdoms, phyla, and classes. The second lab investigated interdependence between organisms by constructing food chains and a food web of 10 organisms and their food sources. Key findings were that organisms can be classified into taxonomic groups and that living things rely on each other through predator-prey relationships and the transfer of energy up the food chain from producers to consumers.
Lab safety
This document outlines various laboratory safety guidelines. It instructs students to wear protective equipment like safety goggles, tie back long hair, and keep work areas uncluttered. Chemicals should be handled carefully and mixed only with instructions. Glassware should not be used if cracked and hot objects require insulated gloves. In the event of injury, burns should be flushed with cold water, cuts pressed until bleeding stops, and eyes flushed with water if chemicals are present.
Molecular biology tecniques
DNA is the genetic material found in chromosomes inside cells. It contains the biological instructions that determine traits like eye color. DNA is made of nucleotides with a phosphate group, sugar (deoxyribose), and one of four nitrogenous bases: adenine, guanine, cytosine, or thymine. DNA exists as two strands coiled around each other in the famous double helix structure, with the bases on one strand pairing with their complements on the other strand. Molecular techniques use DNA, RNA, and enzymes to study biology at a molecular level and detect disease states.
Basic Principles of Biosafety
The document discusses basic principles of biosafety. It begins by defining biosafety as safety from exposure to infectious agents. It then discusses biosafety levels 1-4 which provide increasing levels of containment for biological hazards. It also discusses important biosafety concepts like standard microbiological practices, safety equipment, facility design and construction that help prevent exposure to biological hazards in research and clinical settings.
Lab safety rules and symbols Summary
The most dangerous thing in any laboratory is someone who doesn't know what they are doing. The document outlines many important lab safety rules regarding personal protective equipment, chemical handling, fire safety, first aid procedures, and cleanup. Key safety symbols are explained, such as wearing goggles and gloves when handling hot materials or chemicals. Proper disposal methods and treating animals and plants with care are also emphasized.
Lab apparatus
1. Digital balances allow for precise mass measurements and are important for experiments requiring exact amounts of substances. They must be placed on a stable, flat surface and containers must be tared to remove their mass from calculations.
2. Beakers and Erlenmeyer flasks are used to hold liquids and solids. Beakers have a pour spout and are used for mixing and transferring chemicals. Flasks can hold reactions or liquid samples and catch filtrates.
3. Burettes held in clamps and stands allow for accurate liquid measurements and dispensing. They are filled and used with a beaker or flask underneath to deliver specific volumes of reagents.
How to write a plan and design experiment
The document outlines how to write a plan and design experiment for testing which color of lime (yellow or green) has a higher level of acidity. It includes sections for the problem statement, hypothesis, aim, apparatus and materials, method, variables, expected results, treatment of results, chemical principles, and sources of errors/assumptions/limitations. The hypothesis is that yellow limes have the highest acidity. The aim is to measure and compare the pH levels of lime juice from each color lime. Yellow lime juice is expected to give a lower pH reading, supporting the hypothesis that it has a higher acidity.
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Biological and chemical safety in the microbiology laboratory
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Equipments for Chemistry Laboratory (2).pptx
The document describes various pieces of lab equipment used in chemistry experiments, including their purposes and proper uses. Beakers hold liquids and solids that won't release gases or splatter, while Erlenmeyer flasks are used for substances that may release gases or splatter. Other tools described are graduated cylinders for measuring liquids, gas collecting bottles for capturing gases, test tubes and test tube holders, spot plates for multiple small reactions, funnels for liquid transfers, ring stands for secure heating setups, and strikers for lighting Bunsen burners. Safety precautions are noted for several items.
Equipment
This document lists and describes common lab equipment used in chemistry including beakers, Erlenmeyer flasks, graduated cylinders, test tubes, burners, clamps, and more. It explains what each piece of equipment is used for, such as holding liquids (beakers), measuring volumes (graduated cylinders), heating substances (Bunsen burners), and securing items to ringstands (clamps). Safety notes are also provided about proper use and handling of some equipment.
Equipment
This document provides descriptions of common laboratory equipment used in chemistry. It describes various containers such as beakers, Erlenmeyer flasks, Florence flasks, graduated cylinders, gas collecting bottles, and test tubes that are used to hold solids and liquids. It also describes tools used for heating such as Bunsen burners, evaporating dishes, crucibles, clay triangles, and ringstands. Additional equipment described includes items for measuring volumes, stirring solutions, lighting flames, and handling hot objects.
Equipment
This document provides descriptions of common laboratory equipment used in chemistry. It describes various glassware like beakers, Erlenmeyer flasks, Florence flasks, graduated cylinders, gas collecting bottles, test tubes, spot plates, watch glasses, and evaporating dishes. It also lists equipment for heating and transferring substances, including Bunsen burners, ring stands, utility clamps, burets, wire gauze, strikers, and spatulas. Additional items described are forceps, funnels, Mohr pipets, wash bottles, weighing boats, crucibles, clay triangles, and glass plates.
Equipment
This document provides descriptions of common laboratory equipment used in chemistry. It describes various glassware like beakers, Erlenmeyer flasks, Florence flasks, graduated cylinders, gas collecting bottles, test tubes, spot plates, watch glasses, and evaporating dishes. It also lists equipment for heating and stirring substances such as Bunsen burners, clay triangles, crucibles, crucible tongs, glass stir rods, and ring stands. Other tools mentioned include funnels, medicine droppers, forceps, spatulas, Mohr pipets, wash bottles, weighing boats, litmus paper, and strikers.
Grade 9, U1-L1-LabEquip
This document provides descriptions of common laboratory equipment used in chemistry. It describes various glassware like beakers, Erlenmeyer flasks, Florence flasks, graduated cylinders, gas collecting bottles, test tubes, and watch glasses. It also lists equipment for heating substances and transferring liquids such as Bunsen burners, evaporating dishes, crucibles, funnels, and Mohr pipets. Finally, it describes accessories that support experiments including ringstands, utility clamps, wire gauze, and strikers.
Lab equipment
This document provides descriptions of common laboratory equipment used in chemistry. It describes the purposes and proper uses of items such as beakers, Erlenmeyer flasks, graduated cylinders, gas collecting bottles, test tubes, test tube holders, spot plates, funnels, crucibles, ringstands, burets, and strikers. The document explains how each piece of equipment is used to contain, heat, or transfer chemicals and perform experiments safely in the laboratory.
Lab_Equipment.ppt
This document provides descriptions of common lab equipment used in chemistry including beakers, Erlenmeyer flasks, graduated cylinders, test tubes, Bunsen burners, ring stands, spatulas, and other tools used to contain, heat, measure, and transfer chemicals and liquids in the lab. It describes what each piece of equipment is used for and any safety considerations when using them.
Lab_Equipment.ppt
This document provides descriptions of common lab equipment used in chemistry including beakers, Erlenmeyer flasks, graduated cylinders, test tubes, Bunsen burners, ring stands, spatulas, and other tools used to contain, heat, measure, and transfer chemicals and liquids in a laboratory setting. It describes what each piece of equipment is used for and any safety considerations for its use.
Lab_Equipment.ppt
This document provides descriptions of common lab equipment used in chemistry including beakers, Erlenmeyer flasks, graduated cylinders, test tubes, Bunsen burners, ring stands, spatulas, and other tools used to contain, heat, measure, and transfer chemicals. The equipment has specific purposes such as holding liquids and gases, safely heating substances, and performing small scale reactions on spot plates or in test tubes. Proper use and cleaning of equipment is emphasized to avoid contamination and breakage.
2._Gr.9_Apparatus___Uses.pptx
This document provides information about common lab equipment, including their names and uses. It describes various pieces of glassware like beakers, flasks, test tubes and their purposes. Equipment for heating substances like Bunsen burners, tripods, and wire gauze are explained. Other tools mentioned include funnels, pipettes, spatulas, forceps, and burettes used for measuring and transferring liquids. The document serves to introduce students to basic lab apparatus and their functions.
Chemistry Lab Equipment - 2014
NCS Chemistry Lab Equipment - Adapted from presentations by Stephen L. Cotton, Charles Page High School and Mrs. Parris, Galax High School
NCS Chemistry Lab Equipment - 2022.ppt
This document provides descriptions and proper uses of common chemistry lab equipment. It includes images and explanations of various pieces of glassware, balances, burners, and other tools used for heating, measuring, transferring, and observing chemical substances in a lab setting. Key items described are beakers, flasks, graduated cylinders, Bunsen burners, ring stands, balances, crucibles, test tubes, pipets, and other small equipment for safely handling chemicals. Proper techniques are emphasized, such as using tongs or holders for hot glassware and never placing chemicals directly on analytical balances.
Lab equipment
The following experiment would test if temperature affects bacterial growth in the pool:
1) Collect water samples from the pool at different temperatures
2) Inoculate petri dishes with each water sample and incubate at different temperatures
3) Observe and count bacterial colonies to see if higher temperatures produce more growth
Materials needed include petri dishes, inoculation loops or needles, incubator, and a thermometer.
Chemistry Lab Equipment 2018
The document describes various pieces of lab equipment used in chemistry labs, including their purposes and proper uses. It discusses items such as beakers, burners, balances, crucibles, funnels, pipets, stands, test tubes, and thermometers. The equipment is used to contain, heat, transfer, and measure both solids and liquids during experiments. Safety precautions are also noted, such as not placing hot items directly on counters and only heating certain test tubes over flames.
Lab Equipments.ppt
Beaker
Beakers hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated.
Beaker Tongs
Beaker tongs are used to move beakers containing hot liquids.
Erlenmeyer Flask
Erlenmeyer flasks hold solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated.
Florence Flask
Rarely used in first year Biochemistry, it is used for the mixing of chemicals. Narrow neck prevents splash exposure.
Graduated Cylinder
A graduated cylinder is used to measure volumes of liquids.
Test Tubes
Test Tube Holder
A test tube holder is useful for holding a test tube which is too hot to handle.
Test Tube Brushes
Test tube brushes are used to clean test tubes and graduated cylinders.
Forcing a large brush into a small test tube will often break the tube.
Test Tube Racks
Test tube racks are for holding and organizing test tubes on the laboratory counter.
After washing flip test tube over on wooden peg to dry.
Rubber Stoppers
Rubber stoppers are used to close containers to avoid spillage or contamination.
Glass Stir Rod
A glass rod is used to manually stir solutions. It can also be used to transfer a single drop of a solution.
Forceps
Forceps (or tweezers) are used to pick up small objects.
Funnel
A funnel is used to aid in the transfer of liquid from one vessel to another.
Watch Glass
A watch glass is used to hold a small amount of solid, such as the product of a reaction.
Wash Bottle
A wash bottle has a spout that delivers a wash solution to a specific area. Distilled water is the only liquid that should be used in a wash bottle.
Weighing Boat
Weighing boats are used to weigh solids that will be transferred to another vessel.
Bunsen Burner
Bunsen burners are used for the heating of nonvolatile liquids and solids.
Evaporating Dish
The evaporating dish is used for the heating of stable solid compounds and elements.
Crucible
Crucibles are used for heating certain solids, particularly metals, to very high temperatures.
Clay Triangle
The clay triangle is used as a support for porcelein crucibles when being heated over a Bunsen burner.
Crucible Tongs
For handling hot crucibles; also used to pick up other hot objects. NOT to be used for picking up beakers!
Ringstands and their Components
Ringstand
Ringstands are a safe and convenient way to perform reactions that require heating using a Bunsen burner.
Ringstands and their Components Utility Clamps
Utility clamps are used to secure test tubes, distillation columns, and burets to the ringstand.
Ringstands and their Components Wire Gauze
Wire gauze sits on the iron ring to provide a place to stand a beaker.
Ringstands and their Components Double Buret Clamps
Double Buret clamps are used to burets – long graduated tubes used in titration.
Triangular File
Triangular files are used primarily to cut glass rod, a skill that your instructor will share with you when it becomes useful.
Litmus Paper
Red litmus paper is used to identify ba
Laboratory Equipments.pdf
Test tubes, beakers, Erlenmeyer flasks, volumetric flasks, graduated cylinders, and pipettes are common lab equipment used to hold, store, and transfer liquids. Other equipment includes burettes for measuring solutions, funnels and Buchner funnels for filtration, clamps and stands to hold equipment, burners for heating substances, dishes for reactions, rods and spatulas for mixing, and condensers, flasks, and filters for distillation and separation. Additional tools are balances for weighing, stirrers for mixing, and desiccators for moisture control.
Science lab
Lab equipment is an important part of chemistry and includes items such as beakers, bottles, Bunsen burners, burets, crucibles, Erlenmeyer flasks, evaporating dishes, Florence flasks, funnels, microspatulas, mortar and pestles, pipets, ring stands, stir rods, stoppers, test tube brushes, test tube holders, test tube racks, thermometers, tongs, triangles, volumetric flasks, watch glasses, and more. Each piece of equipment has a specific use, such as holding and heating liquids for beakers, precisely measuring liquids for burets, crushing solids for mortar and pestles, and taking temperatures for thermometers. Pro
laboratory equipment
This document provides descriptions and uses for common laboratory equipment. It defines key terms like accuracy, precision, physical properties, and chemical properties. It also explains how to properly use items like balances, rulers, and pipettes to make accurate measurements. A variety of common lab tools are described, including beakers, flasks, funnels, clamps, burners, and personal protective equipment like goggles and aprons. Less common equipment like centrifuges and petri dishes are also briefly outlined. The document serves as a review of essential lab equipment, techniques, and terminology.
LabEquipment.pdf
This document provides information on common lab equipment, their uses, and key vocabulary terms related to the study of matter. It describes various pieces of lab equipment like beakers, graduated cylinders, pipettes, burets, ring stands, clamps, funnels, crucibles, hot plates, balances, and more. Each piece of equipment is accompanied by an image and brief description of its purpose, such as measuring precise liquid volumes, mixing and heating solutions, supporting other equipment, or transferring substances. The document also defines key terms like matter, physical and chemical properties, accuracy, precision, and classifications of matter.
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NCS Chemistry Lab Tour - 2022.ppt
The document provides instructions for the safety equipment and supplies in a chemistry lab, including the location and proper use of the safety shower, eyewash station, fume hood, goggle sanitizer, broken glass disposal, fire blanket, fire extinguisher, lab equipment, cleaning supplies, and storage areas for personal items and small equipment. Students are directed to clean lab equipment before and after use and keep their work areas neat and organized.
Chemistry Lab Tour 2018
The document provides an overview of safety equipment and lab areas in a chemistry lab, including a safety shower, eyewash station, fume hood, goggle sanitizer, fire blanket and extinguisher, equipment storage drawers, and cleaning supplies. Students are instructed to keep their lab area neat and clean and to properly clean, check for damage, and store lab equipment after use. Safety protocols like activating safety equipment handles in an emergency and properly disposing of broken glass and waste are also outlined.
Steps to Lighting a Bunsen Burner 2012
1. The document provides instructions for setting up and using a Bunsen burner safely and effectively. Key parts that should be checked include the burner tubing, main gas valve, barrel, and needle valve.
2. To light the burner, turn on the gas and create a spark above the barrel. Adjust the flame using the barrel to control air and needle valve to control fuel, aiming for a silent blue flame.
3. A properly adjusted flame will be blue with the inner tip touching the item to be heated. Always turn off the gas when finished by closing the main valve completely.
Chemistry Lab Tour - 2014
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Human Density Lab 8 24-11
Human density is less than that of water, which is why humans can float. The human body is mostly made up of water and fat, both of which are less dense than water. On average, the density of the human body is slightly less than 1 gram per milliliter, while water has a density of exactly 1 gram per milliliter, allowing the average human to float with ease in water.
Density lab 8 24-11
Human density is less than that of water, which is why humans can float. The human body is mostly made up of water and fat, both of which are less dense than water. When humans enter water, they displace their own weight in water and the buoyant force of the water pushes up on the body, allowing humans to float with ease.
Lab -human_density_lab_info_2010
Human density is slightly less than that of water, which is why humans can float. The human body is mostly made up of water, but it also contains bone and muscle tissue that are denser than water. On average, the density of the human body is about 0.98 grams per milliliter, just slightly less than the density of water which is 1 gram per milliliter, allowing the average human to float with little effort.
Chemistry Lab Tour
This document provides instructions for students on lab safety and equipment use. It explains that lab areas and equipment should be kept clean. It identifies supplies for cleaning, such as paper towels, soap, and brushes. Broken glass and trash have separate disposal locations. Small equipment is stored in labeled drawers. Larger items like aprons, burners, and ring stands have designated storage areas. Emergency equipment like eyewash stations, safety showers, fume hoods, fire blankets, and extinguishers are positioned strategically around the lab for safe use in case of accidents. Proper use and storage of materials and equipment is emphasized to maintain a safe lab environment.
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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Lab Equipment
- 1. SBEC Chemistry Lab Equipment Adapted from presentations by Stephen L. Cotton, Charles Page High School and Mrs. Parris, Galax High School
- 3. Beaker Tongs Beaker tongs are used to move beakers containing hot liquids. Note the rubber coating to improve grip on the glass beaker - do not hold this in a burner flame.
- 4. Bunsen Burner Make sure the hose is snug on the gas outlet and that there are no cracks in the hose. Bunsen burners are used for heating nonvolatile liquids and solids.
- 5. Centigram Balance Make sure balance is zeroed before beginning. Never place chemicals directly onto the balance pan. And always return the riders to zero when you finish massing.
- 6. Ceramic Fiber Square (Heat Resistant Mat) Always place hot glassware on a heat resistant mat. Placing hot glass on a cool counter can cause it to crack.
- 8. Crucible and cover Crucibles are used for heating certain solids, particularly metals, to very high temperatures. The cover can be used to contain any smoke particles.
- 9. Crucible Tongs For handling hot crucibles; also used to pick up other hot objects - NOT to be used for picking up beakers!
- 10. Deflagrating Spoon Will be used in the Fume Hood in the combustion of sulfur.
- 11. Erlenmeyer Flask Erlenmeyer flasks hold solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated. Note the size
- 12. Evaporating Dish The evaporating dish is used for heating stable solid compounds and elements, as well as for evaporating nonvolatile solutions.
- 13. Florence Flask Rarely used in first year chemistry, it is used for the mixing of chemicals. Narrow neck prevents splash exposure.
- 14. Forceps Forceps are used to hold or pick up small objects.
- 15. Funnel A funnel is used to aid in the transfer of liquids from one vessel to another, and will hold filter paper while filtering. It may be glass or plastic.
- 16. Graduated Cylinder A graduated cylinder is used to more accurately measure volumes of liquids (probably your best everyday measuring tool) there are three sizes in your desk: 10 mL, 50 mL and 100 mL.
- 17. Litmus Paper Red litmus paper is used to identify bases : Red turns blue, Blue stays blue Blue litmus paper is used to identify acids : Blue turns red, Red stays red
- 18. Pasteur Pipet A Pasteur pipet is used to transfer a small volume of liquid, usually one drop at a time. On top of each pipet is a “ rubber bulb ” – never put your mouth on the dropper to provide suction
- 19. Pipe Stem (Clay) Triangle The pipe stem triangle is used as a support for crucibles when being heated over a lab burner. It can also be used to support a funnel when filtering.
- 20. Reaction (Multi-well) Plates Reaction plates are used when we want to perform many small scale reactions at one time. It is like having lots of test tubes available at one time.
- 21. Ringstands and their Components Ringstands are a safe and convenient way to perform reactions that require heating using a lab burner. Can also be used as an insulating pad to place hot objects while they cool.
- 22. Ringstands and their Components Iron Ring Iron rings connect to a ringstand, and provide a stable, elevated platform for a beaker to be heated. Will also hold a pipe stem triangle and funnel during filtering
- 23. Ringstands and their Components Test tube Clamps Test tube clamps are used to secure test tubes, distillation columns, and burets to the ringstand.
- 24. Ringstands and their Components Double Buret Clamps Double Buret clamps are used to secure burets (long graduated tubes) or thermometers to the ringstand.
- 25. Ringstands and their Components Wire Gauze Wire gauze sits on the iron ring to provide a place to stand a beaker. On older wire gauze, the white material was asbestos – currently it is a ceramic.
- 26. Rubber Stoppers Rubber stoppers (also cork) are used to close containers to avoid spillage or contamination. Containers should never be heated when there is a stopper in place.
- 27. Spatula Spatulas are used to transfer solid chemicals. Never insert a spatula directly into a reagent bottle. Chemicals should never be transferred with your bare hands.
- 28. Stirring Rod The stirring rod is used to: a) manually stir solutions; b) assist in pouring liquids; and c) to transfer a single drop of a solution. Rubber policeman tip is used to remove precipitates. Stir with this end.
- 29. Striker / Sparker These strikers are used to light lab burners. The flints on strikers are expensive. Do not operate the striker repeatedly just to see the sparks!
- 30. Test Tubes – we commonly use 2 sizes: 18 x 150 mm 13 x 100 mm Ignition Tube (25 x 200 mm – I’ll use these in demos. Test tubes are used to mix chemicals, and also to heat chemicals. Only heat test tubes that are Pyrex or Kimax.
- 31. Test Tube Brushes Test tube brushes are used to clean test tubes and graduated cylinders. Forcing a large brush into a small test tube will often break the tube. Don’t worry about drying the inside of a test tube. Small test tube brush Large test tube brush
- 32. Test Tube Holder A test tube holder is useful for holding a test tube which is too hot to handle. Knowing where to hold this piece of equipment is important.
- 33. Test Tube Racks Test tube racks are for holding and organizing test tubes on the laboratory counter.
- 34. Thermometer Never shake thermometers. Never place a thermometer directly into a flame.
- 35. Thin Stem Pipet
- 36. Watch Glass A watch glass is used to hold a small amount of solid, such as the product of a reaction. Can also be used as a cover for an evaporating dish or beaker.