11 best lab erlenmeyer flasks
Erlenmeyer flasks, often simply referred to as "Erlenmeyer flasks" or "conical flasks," are a type of laboratory glassware commonly used in scientific research, chemistry, and various laboratory applications. They belong to the category of lab flasks and are considered an essential tool for mixing, heating, and containing liquids in a laboratory setting.Here is some information about Erlenmeyer flasks:
Design: Erlenmeyer flasks have a distinctive shape characterized by a flat, broad bottom and a narrow, conical neck. This design allows for efficient mixing and swirling of liquids without significant splashing, making them suitable for a wide range of laboratory tasks.
Material: They are typically made from high-quality borosilicate glass, which is resistant to chemical reactions and temperature variations. This glass is known for its durability and transparency, allowing researchers to observe the contents easily.
Volume Graduations: Many Erlenmeyer flasks have volume markings (graduations) on the side, which help scientists measure and mix precise quantities of liquids.
Versatility: Erlenmeyer flasks are versatile and can be used for various purposes, including titration, culturing microorganisms, preparing and storing solutions, and conducting chemical reactions. They are often used in conjunction with laboratory equipment like magnetic stirrers and heating mantles.
Stopper Compatibility: The narrow neck of the flask is designed to accommodate stoppers, which can be used to seal the flask to prevent contamination or to allow for gas exchange, depending on the experiment's requirements.
Heating: Erlenmeyer flasks can be safely heated using Bunsen burners or other heating sources due to their sturdy construction and resistance to thermal shock.
Safety: They are designed to minimize the risk of chemical splashes and spills, enhancing laboratory safety during experiments.
Various Sizes: Erlenmeyer flasks come in a range of sizes, from small volumes for precise measurements to larger capacities for bulk mixing and reactions.
Cleaning: They are relatively easy to clean and sterilize, making them suitable for a variety of laboratory applications.
Erlenmeyer flasks are a fundamental piece of laboratory glassware, and their iconic shape and utility have made them a symbol of scientific research. Their versatility, durability, and safety features have contributed to their widespread use in laboratories worldwide. Scientists and researchers rely on Erlenmeyer flasks for a multitude of tasks, from basic chemical preparations to complex experiments and analyses.
Below you can find our editor's choice of the best lab erlenmeyer flasks on the market
Young4us Glass Erlenmeyer Flask Set, (250 ml, 150 ml & 50 ml) Graduated Borosilicate Glass Erlenmeyer Flasks with Rubber Stoppers & Accurate Scales for Lab, Experiment, Chemistry, Science Studies etc
Young4us
- 3 RUBBER STOPPERS INCLUDED: This set has 3 rubber stoppers for these 3 Erlenmeyer Flasks, which are sterile & can seal the liquid in the flasks perfectly for experiment.
- ACCURATE SCALES: 3 Erlenmeyer Flasks in different sizes (250ml 150ml 50ml) have clear and accurate scales for you to measure liquid efficiently & accurately without any problem.
- SIGNIFICANT FEATURES: Reusable, environmental friendly, will not shatter easily, easy to clean, high temperature resistance, for laboratory, chemistry, science experiment, liquid measuring, etc.
- HIGH-END MATERIAL FOR LAB: These Borosilicate Glass Erlenmeyer Flasks have High chemical durability and low thermal expansion, which can withstand the temperature under 800 °C (~1500 °F).
- PACKAGE & WORRY-FREE: Each set has 3 Erlenmeyer Flasks & 3 Rubber Stoppers. If you received defective items, please contact us via email for full refund or replacement. We would try our best to fix issues.
User questions & answers
| Question: | Is the scale above correct |
| Answer: | It's accurate. It's measured. |
| Question: | Is it high temperature resistant |
| Answer: | Able to withstand 800 degrees C |
| Question: | Can it be reused |
| Answer: | Yes, it can be reused after cleaning and disinfection. |
| Question: | Is the seal good |
| Answer: | Very good. The rubber plug is perfectly sealed. |
Premium Erlenmeyer Flask Set - 50ml, 100ml, 250ml, 500ml & 1000ml - Narrow Neck, White Graduations - Superior Durability & Chemical Resistance - Borosilicate 3.3 Glass - Eisco Labs
Eisco
- INDUSTRIAL STRENGTH || Made of high quality, heavy duty, Borosilicate 3.3 glass. Thick, uniform walls provide excellent strength against breakage. Designed for use in professional laboratories, but is ideal for classroom, garage and home use
- 5 PIECE SET || Set includes five Erlenmeyer flasks. 50ml, 100ml, 250ml, 500ml & 1000ml capacities. Flasks feature narrow necks, beaded rims and white, printed graduations
- SUPERIOR HEAT & CHEMICAL DURABILITY || Microwavable and autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks
- SAFETY PACK || Set is packaged in a custom fit, thick foam casing, for safe storage and worry free transport
- MANUFACTURED BY EISCO LABS || Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind
Product features
5 piece Erlenmeyer Flask set made of high quality, heavy duty, borosilicate 3.3 glass. Includes five, narrow neck flasks with 50ml, 100ml, 250ml, 500ml & 1000ml capacities. Flasks feature white, printed graduations, and beaded rims. Uniform, thick walls provide excellent strength against breakage. Set is packaged in a custom fit, thick foam casing, for safe storage and transport.
Microwavable and autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.
Heavy Duty, Borosilicate 3.3 Glass
Designed for use in professional laboratories, each flask is created utilizing state of the art manufacturing techniques using only the highest quality, low expansion Borosilicate 3.3 Glass.
Custom Fitted Safety Foam Packaging
This essential glassware set arrives in a custom fitted, thick foam casing for safe transport and easy storage of your glass flasks.
Erlenmeyer Flask, 500ml - Borosilicate Glass - Narrow Neck, Conical Shape - White Graduations - Eisco Labs
Eisco
Product description
1 Single Erlenmeyer conical Flask 500ml, narrow neck, Made from high quality borosilicate glass. 500ml with 100ml graduations.
Flask measures 7" tall and has a base diameter of 4". Inner neck diameter measures 28mm, and outer diameter measures 35mm.
Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.
Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control.
Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.
- High Quality Borosilicate glass
- 500ml Capicity with 100ml Graduations
Erlenmeyer Flask, 500ml - Borosilicate Glass - with PTFE Screw Cap - Conical Shape - White Graduations - Eisco Labs
Eisco
Product description
Erlenmeyer conical flask with Teflon lined screw cap. 500ml capacity, with white graduations marked every 100ml. Flask measures 7" tall, and 4" in diameter. Neck diameter measures 0.75".
Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.
Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control.
Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.
- Made of high quality borosilicate glass
- Conical shape for spill prevention
- Screw cap with Teflon lining
- 500ml capacity. White graduation lines, marked every 100ml
- Perfect for any science or home laboratory
User questions & answers
| Question: | Is this microwave safe |
| Answer: | Yes |
| Question: | is it ok to set this on its side while sterilizing agar in a pressure cooker |
| Answer: | This is not a recommended use for this product. |
Corning Pyrex #4980-1L, 1000ml Narrow Mouth Erlenmeyer Flask with Rubber Stopper (Single)
Karter Scientific
Product description
These 1L PYREX Erlenmeyer flasks are designed with heavy duty rims to reduce chipping. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. Rubber Stopper included.
- Capacity: 1000ml
- Graduations: 50ml, 250ml to 1000ml
- O.D. x Height(mm): 129 x 216
- Heavy Duty Rim
- Narrow Mouth
User questions & answers
| Question: | Can this be pressure cooked at 15 psi |
| Answer: | The only way to attempt pressure cooker application is with a screw cap, not a rubber stopper. The rubber stopper wouldn't allow any excess build up to release, therefore it would break |
| Question: | What color and material is the cork |
| Answer: | No cork |
| Question: | What is the stopper size (number) and is it solid or does it have a hole(s |
| Answer: | Mine was a solid stopper. |
| Question: | Does this beaker require a #7 or #8 stopper |
| Answer: | This beaker came with the stopper that fit, it is a #9 Stopper. |
Karter Scientific Glass Flask 5 Piece Set, Narrow Mouth Erlenmeyer, Borosilicate 3.3 Glass - 50ml, 150ml, 250ml, 500ml, 1L, 213B2
Karter Scientific
Product description
A convenient classroom set of borosilicate glass Erlenmeyer Flasks. 5 piece Flask Set consists of one each of 50ml, 150ml, 250ml, 500ml, and 1000ml Flasks. If you have any questions or concerns, please contact us. We are happy to make it right!
- Contains 1 each 50, 150, 250, 500 & 1000ml Flask
- High quality inert 3.3 borosilicate glass
- Height of each as follows:, 50ml = approx. 85mm, 150ml = approx. 120mm, 250ml = approx. 140mm ,500ml = approx. 175mm , 1000ml = approx. 220mm
- ASTM Specification E960, Type I requirements
- 121C/250F conducted in a slow and careful manner to avoid breakage. Heavy Duty Reusable.
User questions & answers
| Question: | What temperature will these flasks sdand? Thanks |
| Answer: | These flasks are made of 3.3 Borosilicate Glass which can withstand maximum temperature of approximately 121C/250F. Temperature transitioning should be conducted in a slow and careful manner to avoid breakage. |
| Question: | how tall are these beakers, I'm using for my display case |
| Answer: | Height of each as follows:50ml= approx. 85mm150ml= approx. 120mm250ml= approx. 140mm500ml= approx. 175mm1000ml= approx. 220mm |
| Question: | Hello, are these beakers heat tempered? Thx |
| Answer: | No, lab ware is not generally heat tempered. It is made of borosilicate (Pyrex) and does not need tempering to resist thermal shock. |
| Question: | Can these withdtand strong acids |
| Answer: | This question can't be answered simply. Chemically speaking, there is no single, easily definable category of "strong acids." Different materials (including glass) react differently to different acids. |
6 Pack Moonetto 1000ml Narrow Mouth Pyrex Graduated Lab Erlenmeyer Glass Flask with Blue Screw Cap
Moonetto
Product description
Capacity of Each Erlenmeyer Flask: 1000 mL, permanent white enamel graduations from 400 mL to 900 mL, accurate scales
Borosilicate Pyrex Glass: thick, tough, high quality, low coefficients of thermal expansion, resistant to thermal shock, high chemical resistance in corrosive enviroments
Autoclavable: Up to 120℃, reusable, enviromental friendly, transparent, easy labeling
GL45 Screw Cap: Blue GL45 screw cap, tight seal, drip-free, narrow mouth flask
Glass erlenmeyer flask fits for storage of media, biologicals and other liquid solutions for lab, experiment, chemistry, scientific studies and storage at home
- Capacity of Each Erlenmeyer Flask: 1000 mL, permanent white enamel graduations from 400 mL to 900 mL, accurate scales
- Borosilicate Pyrex Glass: thick, tough, high quality, low coefficients of thermal expansion, resistant to thermal shock, high chemical resistance in corrosive enviroments
- Autoclavable: Up to 120℃, reusable, enviromental friendly, transparent, easy labeling
- GL45 Screw Cap: Blue GL45 screw cap, tight seal, drip-free, narrow mouth flask
- Glass erlenmeyer flask fits for storage of media, biologicals and other liquid solutions for lab, experiment, chemistry, scientific studies and storage at home
Corning Pyrex #4980-250, 250ml Narrow Mouth Erlenmeyer Flask with Rubber Stopper (Single)
Corning
Product description
These PYREX Erlenmeyer flasks are designed with heavy duty rims to reduce chipping. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. Approximate graduations are in durable white enamel. An extra large marking space is also provided. Rubber Stopper included.
- Capacity: 250ml
- Graduation Interval: 25ml, up to 200ml
- Rubber Stopper: #06
- CORNING PYREX #4980-250
User questions & answers
| Question: | How tall is the 250 ml flask |
| Answer: | It is approximately 5 3/4" tall. |
| Question: | Is this one or two flasks? The title says "single", while the description says |
| Answer: | It is one flask and one stopper. That is the reason it says two items. I hope this clears up any confusion. Please let me know if you have any additional questions. Kindest regards, Customer Service |
Corning Pyrex #4980-500, 500ml Erlenmeyer Flask with Rubber Stopper (Single)
Karter Scientific
Product description
These PYREX Erlenmeyer flasks are designed with heavy duty rims to reduce chipping. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. Approximate graduations are in durable white enamel. An extra large marking space is also provided. Rubber Stopper included.
- Capacity: 500ml
- Graduations: 50ml, 100ml to 500ml
- O.D. x Height(mm): 101 x 176
- Rubber Stopper: #7
- Style: Narrow Mouth with Heavy Duty Rim
User questions & answers
| Question: | Will this be safe to use on the stoptop on an open flame |
| Answer: | Though it may tolerate a very small open flame, it is NOT a boiling flask. It should not be subjected to intense heat changes. Pyrex is a great material but each different kind of flask must be used as intended. Please google Erlenmeyer flask-read uses. |
| Question: | Would I be able to use this on a gas stove flame |
| Answer: | I had no intentions of using this quality made in Germany flask on an open flame so I cannot answer your inquiry. I did however found a website; https://www.coleparmer.com/i/pyrex-4980-500-brand-4980-flask-500-ml-pack-of-6/3450307?PubID=MP&persist=True&ip=no&gclid=EAIaIQobChMIos-fneiB3QIVE57ACh1w1QElEAAYASAAEgJlavD_BwE that may provide an answer. I apologize for not being able to provide you with an answer. Kind regards! |
ULAB Scientific Glass Erlenmeyer Flask Set, 5 Sizes 50ml 150ml 250ml 500ml 1000ml, 3.3 Boro with Printed Graduation, UEF1002
ULAB Scientific
Product description
ULAB Scientific Narrow-Mouth Glass Erlenmeyer Flask Set, 5 Sizes 50ml 150ml 250ml 500ml 1000ml
Including 1pc of Glass Erleneyer Flask 50ml, 1pc of 150ml, 1pc of 250ml , 1pc of 500ml and 1pc of 1000ml
The set contains five of the most popular Erlenmeyer flask sizes offered by ULAB Scientific.
Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance.
Approximate graduations are in durable white enamel.
An extra large marking space is also provided.
Component Materials:
Type I Class A - 3.3 Borosilicate Glass
Attributes:
ASTM Reference - E960 Specification for Laboratory Glass Beakers
Autoclaving:
This product will withstand repeated standard autoclave cycles of 121°C at 15 psi for 5 minutes.
Heating / Cooling:
This product is designed for heating by hot plate, flame, oven, microwave or heating mantles.
In normal service it can be heated many times to 230°C. It can be heated one time to 490°C in extreme service.
This product can be cooled to -230°C. DO NOT plunge product directly into a liquid coolant.
Place the product in the vapor phase of the liquified gasses for slow cooling prior to immersion in the coolant.
Vacuum / Pressure:
This product is not designed for and is not rated for vacuum or pressure applications.
Sterilization:
Shipped Not Sterile
Buy less than 5pcs?
Save money and see ULAB 3-size erlenmeyer flask set on Amazon, search ASIN: B07FDR382R.
After-Sales Service
ULAB Scientific guarantees that no sale is complete unless the customer is satisfied.
If you have any questions or suggestions on our products or service, please do feel free to contact us.
You'll get our reply within 24 hours. Thanks for your patience.
- 5 Sizes 50ml 150ml 250ml 500ml 1000ml
- High quality 3.3 Borosilicate glass, Uniform wall thickness
- Extra large marking spot
- Tolerance is approximately +/- 5%
- ASTM Specification E960, Type I requirements
User questions & answers
| Question: | What size stopper will work with this |
| Answer: | The inner diameter of the flask mouth is about 34 mm. Thanks for your attention. |
| Question: | Do these have flat bottoms |
| Answer: | yes they are flat |
| Question: | Can the measurements be removed with a razor blade |
| Answer: | Dear Customer, if you want them be removed, you can scrape them off by razor blade. If we use them normally in laboratory or at home, the measurements hardly fall off. ULAB Scientific |
| Question: | Can this flask be used for ozone water |
| Answer: | Dear Customer, We do not suggest to use glass erlenmeyer flask stock ozone water as it need a completely sealed container. Thanks for your attention. |
Glass Conical Flask/Erlenmeyer Flask with Narrow Mouth, 2000ml (Pack of 2)
Huaou
- 2000ml Glass conical flask with narrow mouth.
- High quality borosilicate 3.3 glass.
- Height=285mm, O.D. at base=170mm.
- Individually wrapped
- Pack of 2.
User questions & answers
| Question: | What size stopper fits this flask |
| Answer: | #10 rubber stopper works with this flask. |
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