COD CHEM

LAB EQUITMENT

Erlenmeyer Flask

Erlenmeyer Flask

An Erlenmeyer flask is a type of laboratory glassware that has a conical shape with a flat bottom and a narrow neck. It is commonly used for holding and mixing liquids in chemistry experiments. The shape of the flask allows for easy swirling and mixing of the contents, while the narrow neck helps to prevent splashes and spills.

Florence flask

A Florence flask, also known as a boiling flask or round-bottom flask, is a type of laboratory glassware. It has a round bottom and a long neck with a flat or slightly curved opening. Florence flasks are designed for uniform heating and boiling of liquids. They are commonly used in chemistry experiments for distillation, heating, and mixing of substances.

Filtering flask

A filtering flask, also known as a Büchner flask, is a laboratory glassware used for filtration. It consists of a round-bottom flask with a sidearm and a ground glass joint. The sidearm is connected to a vacuum source, and a Büchner funnel is placed on top of the flask. The flask is used to collect the filtrate while the vacuum helps to speed up the filtration process by pulling the liquid through the filter paper in the funnel. It is commonly used in chemistry and biology labs for separating solids from liquids.

Volumetric Flask with Calibration Line

A volumetric flask is a type of laboratory glassware used for precise measurement of a specific volume of liquid. It has a flat bottom, a long neck, and a calibration line etched on the neck. The calibration line indicates the exact volume the flask is designed to hold when filled up to that line. Volumetric flasks are commonly used in analytical chemistry and in preparing standard solutions with accurate concentrations. They are designed to have a high level of accuracy and precision in volume measurement.

Beaker

A beaker is a cylindrical glass container with a flat bottom, a small spout, and a wide mouth. It is commonly used in laboratories for holding, measuring, and mixing liquids. Beakers come in various sizes and are typically made of borosilicate glass, which is resistant to thermal shock and chemical reactions. They are marked with graduations to indicate approximate volume measurements. Beakers are versatile and widely used in scientific experiments and research.

Test Tubes

A test tube is a cylindrical, transparent glass or plastic tube used in laboratories to hold, mix, or heat small quantities of substances. It typically has a rounded bottom and an open top. Test tubes come in various sizes and are often used for conducting experiments, performing chemical reactions, or storing small samples. They are an essential tool in scientific research and analysis.

Graduated Cylinder with safety ring

A graduated cylinder is a cylindrical glass or plastic container used in laboratories to measure the volume of liquids with high accuracy. It typically has a narrow, vertical shape with a uniform diameter and is marked with calibrated graduations along its length. The graduations allow for precise measurement of the liquid's volume, usually in milliliters (mL) or cubic centimeters (cm³). The cylinder may also have a safety ring near the top to prevent spills and provide stability during handling.

Safety Ring

A safety ring on a graduated cylinder is used to provide stability and prevent the cylinder from tipping over. It acts as a support, allowing the cylinder to be securely held in place during measurements or when transferring liquids.

Watch Glass

A chemistry watch glass is a circular, concave-shaped piece of glassware commonly used in laboratories. It is typically made of borosilicate glass and has a flat bottom and a slight curvature on the top surface. The watch glass is used for a variety of purposes, such as holding small amounts of solid or liquid substances, covering beakers or evaporating dishes to prevent contamination or evaporation, and facilitating the evaporation of small volumes of liquids. It is called a "watch glass" because it resembles the glass cover of a pocket watch.

Gas Collecting Bottle

A chemistry gas collecting bottle is a container used to collect and store gases during chemical experiments. It is typically made of glass and has a narrow neck with a stopper or a ground glass joint to prevent gas leakage. The bottle is designed to withstand the pressure exerted by the collected gas and may have markings to measure the volume of gas collected. It is commonly used in processes such as gas preparation, gas analysis, and gas purification in laboratory settings.

Funnel

A funnel is a cone-shaped device with a wide opening at the top and a narrow tube at the bottom. It is used to channel or direct substances, such as liquids or powders, into a smaller opening or container with precision and ease. Funneling helps to prevent spillage and ensures a controlled flow of the substance being transferred.

Powder Funnel

A powder funnel is a funnel specifically designed for transferring powdered substances into containers with narrow openings. It typically has a wide, conical shape with a short stem. The wide opening allows for easy pouring of powders, while the narrow stem helps to control the flow and prevent spillage. The shape of the funnel also helps to minimize the formation of air pockets, ensuring a smooth and efficient transfer of the powder.

Büchner Funnel

A Büchner funnel is a laboratory apparatus used in chemistry for the process of vacuum filtration. It consists of a funnel-shaped glass or porcelain funnel with a perforated plate or filter paper at the bottom. The funnel is connected to a vacuum source, which creates a pressure difference and allows the liquid to be filtered through the plate or filter paper while the solid particles are retained. This apparatus is commonly used to separate solid precipitates from liquids in various chemical processes.

Separatory Funnel

A separatory funnel, also known as a separating funnel or a separation funnel, is a laboratory apparatus used in chemistry for separating immiscible liquids with different densities. It consists of a conical-shaped glass container with a stopcock at the bottom. The liquids are added to the funnel, and after allowing them to settle, the stopcock is opened to release the lower layer while retaining the upper layer. This process is called liquid-liquid extraction or solvent extraction. Separatory funnels are commonly used in various applications, such as organic synthesis, purification of compounds, and extraction of substances from mixtures.

Buret

A chemistry buret is a long, graduated glass tube with a stopcock at the bottom used for precise volume measurements of liquids in laboratory experiments. It is commonly used in titrations to deliver a controlled amount of one solution into another solution until a chemical reaction is complete. The volume of liquid dispensed can be read from the graduated scale on the buret, allowing for accurate and precise measurements.

Transfer (volumetruc) Pipet

A transfer volumetric pipet is a laboratory instrument used to accurately measure and transfer a specific volume of liquid. It is designed with a tapered tip and a calibrated volume marking on the stem. The user can draw up the desired volume of liquid by creating a vacuum with a pipette bulb or a mechanical pipette controller. The liquid can then be transferred to another vessel by releasing the vacuum. The accuracy and precision of a transfer volumetric pipet make it suitable for tasks that require precise volume measurements, such as preparing solutions or conducting experiments.

Mohr (Graduated) Pipet

A Mohr (graduated) pipet is a type of volumetric glassware used in chemistry for precise measurement and transfer of liquids. It has a tapered shape with a graduation mark near the top, allowing for accurate measurement of different volumes. The graduation marks on the pipet indicate the volume of liquid it can hold at various levels. It is commonly used in titrations and other analytical procedures where precise volume measurements are required.

Dropping Pipet (Dropper)

A dropping pipet, also known as a dropper, is a laboratory tool used to transfer small volumes of liquids. It consists of a glass or plastic tube with a tapered tip at one end and a rubber bulb or pipet filler at the other end. By squeezing the bulb and releasing it, the liquid can be drawn into the pipet. When the bulb is squeezed again, the liquid is dispensed in small drops. Dropping pipets are commonly used in chemistry and biology experiments for precise and controlled liquid dispensing.

Thermometer

A graduated cylinder is a cylindrical glass or plastic container used to measure the volume of liquids. It is marked with a scale, typically in milliliters, allowing for precise measurements. The safety ring is a protective feature that helps prevent the cylinder from tipping over and spilling its contents.

Thiele Tube

A Thiele tube is a laboratory glassware used in organic chemistry for the distillation of liquids. It consists of a long, narrow glass tube with a bulb at one end and a sidearm near the other end. The sidearm is connected to a condenser to collect the distilled liquid. The Thiele tube allows for precise control of the distillation process, particularly for liquids with high boiling points or when azeotropes are present.

Thistle Tube

A piece of glassware used in the laboratory that consist of tube with funnel-like portion at the top and a long tube downward to permit insertion into any container

Liebig Condenser (water-cooler)

A condenser for use in distillation that consists of two tubes inside the other with space between for circulation of water

Bunsen burner

A gas burner consisting typically of a straight tube with small holes at the bottom where air enters and miles with the gas to produce an intensely hot blue flame

Tirrill Burner

Used for safe continuous stream of flammable gas used for heating, sterilization and combustion and specialize for finely controlled air/gas mixture

Wing Top (Flame Spreader)

Plated brass, wing shaped which slips over the burner tube of a Bunsen burner to give a wide flat flame of uniform temperature

Meker Burnet

A laboratory gas burner that differs from a typical Bunsen burner In having a constriction in the tube and a grid at the top of the burner causing the flame of burning gas to consist of a number of short blue inner cones and a large single outer cone and to be hotter generally than the flame of a Bunsen Burner

Beaker tongs

Specific category of tongs to be used when handling beakers which you do not want to come in contact with. I.E. a hot beaker

Dish Tongs

Scissor like tools, but instead of having two blades, these tools are replaced with two pincers or pieces of metals that concave together, which allow the users to grasp a hot crucibles, flasks, evaporating dishes, or even small beakers

Flask Tongs

Similar purpose of Dish Tongs, used for grasping and lifting vessels of heat-resistant material used in high temperature chemical reactions.

Test-Tube Holder

Used to hold test tube in place when the tube is hot or should not be touched

Ring Stand

A metal stand consisting of a long upright rod attached to a heavy rectangular base that is used with rings and clamps for supporting laboratory apparatus

Double Buret Holder

Hold two burets simultaneously; do not obscure the buret graduation lines and numbers

Utility Clamp

A laboratory apparatus resembling a pair of scissors. The screw in the middle world as the wide adjustment of 2-prong. It is composed of 3 parts: 2-prong adjust, metal rod, and clamp down (the clamp is attached to the ring stand for adjusting the height).

Clay Triangle

A wire and ceramic triangle used to support a crucible while it’s heated over a Bunsen burner.

Extension Clamp Holder

A piece of laboratory apparatus that is used to secure laboratory clamps, such as extension-type utility clamps, or other attachments to a retort stand or lab frame.

Extension Clamp

Ring (extension type)

Metal clamps used to connect glassware ro ring stands or the metal lattice work

Thermometer clamp

Purpose: holding thermometers in a ring stand

Funnel Rack

Designed to hold utility, powder, separator, and other types of funnels during their use

Pinchcock clamp

Clamp for compressing a flexible pipe, as a rubber tube, in order to regulate or stop the flow of a fluid

Screw Clamp ( Hofmann clamp)

Used to control the flow in flexible tubing; have a machined adjustment screw to permit accurate regulation of the flow. All corners are rounded to prevent cutting of the tubing

Plastic Wash Bottle

Flexible bottle with a tube that is inserted through its stopper or cap. The tube is used to direct a stream of water onto something that needs to be rinsed or washed

Test-Tube Brush

a burst used for cleaning test tubes and narrow mouth laboratory glassware

Beaker Brush

A heavy and durable bristle brush with a wooden handle and is used for cleaning beakers

Crucible and Cover

A ceramic or metal container in which metals or other substances may be melted or subjected to high temperatures

Gooch Crucible

Filtration device for laboratory use. It is convenient for collecting a precipitate directly within the vessel in which it is to be dried, possibly ashes, and finally weighed in gravimetric analysis

Casserole

A small-handled, deep porcelain crucible used for heating and evaporating

Evaporating dish

A round, low dish with a spout used for evaporation in chemistry

Triangular file

Used in the chemistry lab to score glass tubing to create clean breaks in the glass

Mortar and Pestles

used to crush up solid chemicals into smaller pieces, to to grind solids into fine powder making it easier to dissolve solids into solvents when making solutions

Forceps

“tweezers” in an organic chem lab. Used for any situation where you have to grab a small item and cannot do it with your fingers.

Desiccator

An apparatus for absorbing the moisture present in a chemical substance; an airtight, usually glass container containing calcium chloride or some other drying agent for absorbing the moisture of another substance placed in the container

Water aspirator (filter pump)

a type of ejector-hey pump, that produces vacuum by means of the Venturi effect.

Rubber Policeman

A flexible rubber scraper attached to a glass rod, used in chemistry laboratories for amalgamating and transferring sold residues in gravimetric analysis

Pneumatic trough

A trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement

Pipet Safety bulbs

Used for pipetting to create a vacuum or apply pressure to the liquid contents of serological, volumetric, or transfer pipets to collect, transfer, and dispense liquid

Spatulas

Utensils that help with mixing, scraping and other tasks related to transferring materials and samples from one place to another

Wire Guaze (ceramic center)

A sheet of thin metal that has net-like patterns or wire mesh

Water bath

A lab constant temperature equipment, providing heat source for varieties of devices that need heating

Hose

Used to move liquid chemicals or gases around

Striker

Used to start Bunsen burners; constructed with a rough surface itself is constructed with a rough surface positioned opposite to a piece of flint. The arm of the sticker contains flint is pushed back and forth over the rough surface sparks are produced

Alcohol Thermometer

Thermometer consisting of a glass capillary tube marked with degrees Celsius or Fahrenheit and containing alcohol which rises or falls as it expands or contracts with changes in temperature

Mercury Thermometer

A glass tube is filled with mercury and a standard temperature scale is marked on the tube

Deflagrating spoon

A long-handled spoon with a cover, lowered into a glass vessel filled with gas to demonstrate deflagration

Rubber Stoppers

Used to prevent liquid, and sometimes gasses, from escaping their containers, as wells contaminants from entering their containers

Graduated Pipet

Used to accurately measure and transfer a volume of liquid from one container to another

Gas collecting tube

Used for holding gasses, gas sampling, measurement, preparation, and containment