Flask Funnel
Types and Cleaning Process of Lab Glassware Equipments
Laboratory glasswares are the various equipments used for scientific experiments and
research in laboratories. Glassware used in a laboratory is used for different
purposes.Glasswares are designed in such a way that they can resist chemical attack, withstand sterilization, and resist shattering from thermal shock. Some are used for measuring volumes. Lab glasswares are also used to heat and cool chemicals and solutions.Let us check the most popular laboratory glassware equipments: —
Dropping Funnel-A dropping funnel is a type of laboratory glassware used to transfer fluids. They are fitted with a stopcock which allows the flow of to be controlled. Dropping funnels are useful for adding reagents slowly, i.e. drop-wise. Beaker-A beaker is a simple container for stirring, mixing and heating liquids commonly used in many laboratories. Beakers are generally cylindrical in shape, with a flat bottom and a lip for pouring. Many also have a small spout to aid pouring. Boiling Tube-A boiling tube, made of borosilicate glass , is in the shape of a test tube and and is used for boiling samples. They are larger than average test tubes and samples are boiled without spilling over. Glass Funnels-Funnels are conical shaped and are used to transfer liquids from one container to another.Vacuum Flask-Also known as a Buckner flask or filter flask, having a short glass tube and hose barb on its neck. Used for boiling samples, preferred for liquids with high boiling points. Graduated Cylinders-These are cylinders which are available in varied sizes and are properly graduated or marked so that volumes can be measured accurately. Burets or burettes-They are used to accurately measure small measured volume of a liquid. It is a graduated tube that has a stopcock at its end at the end and can dispense precise volumes of liquid. Pipets-These are widely used lab glassware to measure and transfer small volumes. They can be thrown away or reused. Can also be autoclaved. NMR Tube-They are made of thin glass and are tube in shape. As the name suggests, they are used to hold samples used for nuclear magnetic resonance spectroscopy. Condenser-A condenser in a laboratory is used to cool hot liquids or vapors. The basic feature is that consists of a tube within a tube. Crucible-This glassware is in the shape of a cup or bowl and is capable to hold samples which are to be heated to high temperatures. This usually comes with covers or lids. Thistle Tube-A thistle tube is a long glass tube having a reservoir and funnel-like opening at one end. The basic purpose of a thistle tube is to add liquid through a stopper to an existing apparatus. Gas Syringe-A gas syringe is basically a gas collecting bottle. It is used to measure, insert or withdraw a volume of gas. Retort-The shape of the retort is very unique. It is a spherical glass vessel having a downward-bending neck. It is used for distillation or dry distillation and the bending neck acts as a condenser. Schlenk flask-This flask or tube is basically a glass reaction vessel, having a sidearm fitted with a stopcock. This lets the vessel to be filled with gases or evacuated. Glass Bottles with Cork-They are used to safely store chemicals and solutions for further use and to avoid contamination. Boiling Flasks-They are round bottomed glass flasks with thick walls. Also known as Florence flask, they can withstand temperature changes due to heat and chemical reactions.
Cleaning Laboratory Glassware:—Laboratory glassware needs to handled with great care and should be cleaned properly for further use. There are many different methods of cleaning laboratory glassware. Most of the time, these methods are tried in this order of steps:
1. The glassware is soaked in a detergent solution to remove grease and loosen most contamination. 2. Gross contamination and large particles are removed mechanically, by scrubbing with a brush or scouring pad. 3. Alternatively, the first two steps may be combined by sonicating the glassware in a hot detergent solution. 4. Solvents known to dissolve the contamination are used to rinse the<glassware and remove the last traces. 5. Acetone is often used for a final rinse of sensitive or urgently needed glassware as the solvent is miscible with water and forms a low boiling point azeotrope with it, encouraging the remaining aqueous phase to leave more rapidly and thoroughly; this is particularly important if the following work is moisture sensitive. 6. Glassware is often dried by suspending it upside down to drip dry on racks; these can include a hot air fan to blow the internals dry. 7. Another alternative is to place the glassware under vacuum, lower the boiling points of the remaining volatiles. 8. If the glassware are still dirty, more drastic methods may be needed. This includes soaking the piece in a saturated solution of sodium or potassium hydroxide in an alcohol (“base bath”), followed by a dilute solution of hydrochloric acid (“acid bath”) to neutralize the excess base. 9. Sodium hydroxide cleans glass by dissolving a tiny layer of silica, to give soluble silicates. 10.Care should be taken using strongly alkaline solutions to clean fritted glassware, as this will degrade the frit over time.
Important Note: More aggressive cleaning methods involving aqua regia (for removing metals from frits), piranha solution and chromic acid (for removing organics), and hydrofluoric acid baths are generally considered unsafe for routine use because of possible explosions and the corrosive/toxic materials involved.
For More Details- mailto:glasslabequipments@gmail.com
About the Author
A. P. Bansal
Dealextreme – HONEST Stainless Steel + Leather Pocket Liquor Flask with Funnel (228ml)(SKU 33461)
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8oz Stainless Steel Hip Flask + 4 Shot Glasses + Funnel $12.95 |
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New Small Stainless Steel Hip Flask Filling Funnel 1-1/4″ Round By 7/8″ Tall $0.99 |
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7oz Stainless Steel Hip Flask 2Cups 1Funnel in Gift Box #7PNL-GB $0.99 |
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10 oz Stainless Steel Hip Flask Free Funnel #10NL $0.75 |
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JACK DANIEL’S FLASK GIFT SET WITH SHOT GLASSES AND FUNNEL – NEW $35.99 |
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NEW – Maxam 8oz Stainless Steel Hip Flask with Funnel $29.85 |
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Engraved 8 oz Leather Stainless Steel Flask with Funnel $28.00 |
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10oz Stainless Steel Hip Flask Alloy Whiskey Logo Free Funnel #BSD5 $0.95 |
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8oz Leather Moscow Stainless Steel Hip Flask W/Funnel $9.99 |
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7 oz FLASK GIFT SET Food Grade STAINLESS STEEL Funnel 4 Shot Cups in Carry Case $10.50 |
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8 oz FLASK Food Grade STAINLESS STEEL Attached Cap w/ funnel for the FISHERMAN $6.15 |
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8oz Stainless Steel Polished & Sanding Hip Flask Free Funnel #8P2NL $0.75 |
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7oz Stainless Steel Hip Flask One big Funnel Two Cups Funnel #7Plaid-2CBF $0.99 |
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8oz Stainless Steel Hip Flask Free Funnel Sea Rover Logo $0.99 |
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New Stainless Steel 5 oz. Flask with Funnel $9.99 |
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Brand new! 8oz Stainless Steel Hip Flask+Funnel #Beauty5 $0.75 |
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10oz Stainless Steel Hip Flask Leather Wrap Free Funnel#10BKNL $0.99 |
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Skull Crossbones Stainless Steel Hip Flask with S.S. Funnel, NIB [15658] $15.95 |
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Brand New 7oz Stainless Steel Hip Flask 2 Cups 1 Big Funnel #7PNL-2CBF $0.99 |
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Stainless Steel 8oz Hip Flask Free Funnel #Beauty#7 $0.85 |
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For Hip Flasks Stainless Steel Funnel Hot Selling J $1.01 |
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8oz Stainless Steel Hip Flask 2Cups 1Funnel in Gift Box #BT5X-Gray-B $0.99 |
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8oz Stainless Steel Hip Flask Alloy Logo PU Leather Wrap Funnel #8D5 $0.99 |
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8oz Stainless Steel Hip Flask Man-made leather cover Free Funnel #SGBK1 $0.99 |
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8oz Brand New Stainless Steel Hip Flask Alloy Logo Free Funnel #BS-EAGLE $0.99 |
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High Quality STAINLESS STEEL Easy Pour Hip Flask Funnel-FU $1.56 |
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Gorham® Rectangular Flask with Funnel NIB $22.00 |
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Gorham® Rectangular Open Flask with Funnel NIB $22.00 |
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7oz Brand New Stainless Steel Hip Flask Faux Leather Wrapped+Funnel#BKCP $0.75 |
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4000 ml Glass Pyrex Filter vacuum flask with large buchner funnel $99.00 |
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CHEECH & CHONG Home Grown Decorative Flask w/Funnel NIP NIB $9.99 |
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8oz Stainless Steel Hip Flask 1Big Funnel 4 Cups Metal LogoCCCP #BSC-4CBF $12.50 |
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2*7oz Stainless Steel Hip Flask Russia CCCP Double Head Eagle Free Funnel#2*BKCD $15.99 |
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SE Stainless Steel Funnel for Flasks $0.01 Bell- Style flask funnel great to help you fill your travel flask without spilling a precious drop…. |
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12-oz. Squeeze Bottles 3 pk. – Clear $0.95 Kitchen Supply Company’s 12âoz. clear bottles make food prep easy and fun. Tapered nozzle on bottle can be snipped to create thick or thin ribbons of sauce for decorating desserts, frosting a cake or fast dispensing of salad dressing or condiments. Clear bottle shows level of contents. Top screws on firmly so it won’t fly off no matter how hard you squeeze. Topârack dishwasher safe…. |
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SE 8 oz. Stainless Steel Hip Flask and Funnel $0.01 Features screw down cap and brushed finsih. Measures 3-5/8 inches X 5-3/8 inches x1 inches. Limited lifetime warranty. Screw down cap brushed finish measures 3-5/8 inches X 5-3/8 inches X 1 inches…. |
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M48 Kommando Disposable Flask Set 3-Pack With Funnel $9.99 These M48 Kommando survival flasks are great to carry in a hiking or camping pack. They flatten, fold and roll when empty. A funnel is included for spill-free filling and a screw-on pop cap ensures it won’t leak when not in use. A caribiner clip is also included to clip your flask on a pack, or to be clipped under clothing to sneak a drink in where they aren’t allowed. Package includes: 1 28-oz. f… |
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Custom Accessories 30004 3 Piece Plastic Funnel Set $4.88 ANDERSON GARDEN HOSE CAP *3/4″ female garden hose thread *Yellow brass *Bagged… |
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2000ml Steam Distillation Essential Oil Extractor $139.95 Steam distillation is the best method to separate essential oils from plan material, because unlike simple distillation, the product does not have to be a liquid for separation. This apparatus consists of a steam generator flask, which is heated, and a product flask where the steam extracts the oils contained in the plant material. The vapor then condenses in a water-cooled condenser. Set contains… |
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Aeropen Flask + Funnel + Money Clip – 3 Piece Set ( Black Bonded Leather Wrap with Oval Convex Flask ) Model No. GFM-706 $29.95 Buy Aeropen Novelty Gifts & Stationary – Aeropen Flask + Funnel + Money Clip – 3 Piece Set ( Black Bonded Leather Wrap with Oval Convex Flask ) Model No. GFM-706… |
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Eva Solo Coffee Funnel for Eva Solo Vacuum Jug and Vacuum Flask $50.15 The Eva Sola coffee funnel enables you to brew a good cup of coffee at home or when traveling, without the use a coffee machine. The funnel stands securely in the mouth of the Eva Solo vacuum jug or vacuum flask as you pour boiling water over it into the jug. The inner funnel can easily be removed to keep an eye on how much coffee has been brewed. Made of stainless steel and plastic. Dishwasher sa… |
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Coleman Stainless Steel Flask $4.26 Coleman Stainless Steel Flask has a clean – cut look! Fill this Stainless Steel Flask and enjoy a drink of the “good stuff” while everyone else drinks cheap beer. Rugged, stainless steel construction has a brushed finish that reduces visible dings and scratches. Holds 8 oz. of liquid. Order Now! Coleman Stainless Steel Flask… |
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GSI Outdoors Glacier Leather Wrapped Flask -6 oz $24.16 GSI Outdoors Glacier Stainless Steel 6 – oz. Leather – Wrapped Flask… a gift idea with a buzz! Ideal for outdoor sporting events, the ice fishing shack or a pull or two around the old campfire. Corrosion-resistant, stainless steel construction featuring a metal-hinged top and streamlined shape for the hip pocket. Funnel included for no-spill filling. Get yours today! GSI Outdoors Glacier Stainle… |