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Industrial & Scientific

Lab Flasks


United Scientific FG5340-1000 Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml Capacity

United Scientific FG5340-1000 Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml Capacity Lowest new price: $25.00
List price: $29.24
Brand: United Scientific Supplies
Model: FG5340-1000

Borosilicate glass flasks are designed to give the best combinations of thermal shock resistance, physical strength, and resistant to chemical attack.

Features:

  • UNITSCI - FILTERING FLASK, BOROSILICATE GLASS, 1000ML , EA1

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Laboy HMF011435 Glass 1000 mL 3 Neck Round Bottom Boiling Flask with 24/40 Center and Side Joints Angled

Laboy HMF011435 Glass 1000 mL 3 Neck Round Bottom Boiling Flask with 24/40 Center and Side Joints Angled Lowest new price: $36.75
List price: $36.75
Brand: LABOY
Model: HMF011435

This multi-neck flask has three standard taper ground joint. With 2 necks having the same joints Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.

Features:

  • 3 neck angled
  • Round bottom flask
  • Capacity of 1000Ml
  • With 24/40 center joint and side joints
  • Made by hand blowing

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StonyLab 500ml Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation.

StonyLab 500ml Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation. Lowest new price: $19.95
List price: $19.95
Brand: StonyLab


Why Choose StonyLab?

1. The StonyLab means high-quality products for reasonable prices.

2. We boast excellent customer service with a high satisfaction rating, with our team of representatives ready to assist you Monday to Friday, from 9:30AM to 5:30PM Eastern Time.

3. We pack and ship your orders directly from our US-based warehouse within 24 business hours, and tracking information will be provided to you as soon as it's available.

The Graduted Cylinder is made of borosilicate glass. It is heavy duty reusable single metric high quality. The package include: StonyLab 500ml Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation.

Features:

  • Made of borosilicate glass
  • Flasks have a narrow mouth and tooled top finish
  • StonyLab filtering flasks
  • Capacity 500 milliliters

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Corning Pyrex Borosilicate Glass Flat Bottom Boiling Flask, 250mL Capacity

Corning Pyrex Borosilicate Glass Flat Bottom Boiling Flask, 250mL Capacity Lowest new price: $9.19
Lowest used price: $6.15
List price: $10.53
Brand: Pyrex
Model: 594123

The Corning Pyrex Borosilicate Glass Flat Bottom Boiling Flask is a 250mL, long-necked flask for heating and boiling liquids. The neck accepts a #5 stopper (sold separately) and has a tooled mouth for a smooth stopper fit. Flat-bottom flasks can be set on a surface. This flask is made of No. 7740 Pyrex brand clear borosilicate glass for durability and chemical- and temperature-resistance, and its uniform wall thickness provides mechanical strength for shock-resistance. Borosilicate glass has a low coefficient of thermal expansion and is resistant to thermal stress. Boiling flasks provide uniform heating of liquids for quality testing, sampling, and research in chemistry, education, research, and life science applications.

Specifications
Flask styleFlat-bottom boiling
MaterialBorosilicate glass (No. 7740)
Capacity250mL
Stopper size#5
Top styleTooled mouth
Working temperature230 degrees C
Dimensions134mm height, 82mm OD

Flasks are glass or plastic containers for storing or collecting chemical samples or solutions in scientific laboratories. They come in a variety of sizes and shapes and are designed for a wide range of scientific processes. Erlenmeyer flasks, introduced by German chemist Emil Erlenmeyer in 1861, are shaped like a cone with a wide, flat base that narrows to a neck opening, which can be closed with a stopper or cap.

Corning manufactures consumable glass, ceramics, and plastic laboratory tools under the brands Corning, Costar, Cellgro, Pyrex, Axygen, and Gosselin, among others. The company, founded in 1908, is headquartered in New York, NY.

Features:

  • 250mL, long-necked, flat-bottom boiling flask for heating or boiling of liquids
  • Accepts #5 stopper (sold separately) and has a tooled mouth for a smooth stopper fit
  • Pyrex brand borosilicate glass for clarity, strength, and resistance to heat and chemicals
  • Normal working temperature is 230 degrees C
  • Approximate dimensions are 134mm height, 82mm outside diameter (OD)

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100ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W9 (Single)

100ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W9 (Single) Lowest new price: $6.31
List price: $6.24
Brand: Karter Scientific

Karter Scientific Class A Volumetric Flasks are manufactured from high quality inert 3.3 borosilicate glass and meet the tolerances requirements as established by ASTM E-694 - ASTM E-542 - and ASTM E-288. Flat bottom. Volumetric flasks provide improved lab convenience, broad selection and precise volume measurement. Accuracy limits conforms to ISO 1042 Laboratory Glassware-One mark volumetric flasks. With one permanent circular mark. Printed with fused-on enamel color, resistant to most acid and alkaline solutions. Calibration is based on the poured in volume ("In") at a +20°C reference temperature.

Features:

  • Class A
  • Material: 3.3 Borosilicate Glass
  • Flat Bottom
  • Ground Stopper

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Chemglass CG-1506-20 Glass 500mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint

Chemglass CG-1506-20 Glass 500mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint Lowest new price: $31.80
List price: $31.80
Brand: Chemglass
Model: CG-1506-20

Round bottom, HEAVY WALL single short neck flask with a standard taper outer joint. The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask. Flasks with joint sizes other than those listed are available.

Features:

  • Heavy wall
  • Round bottom
  • Single short neck
  • 24/40 outer joint
  • 500mL capacity

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Laboy HMF010319L Glass Single Neck Round Bottom Boiling Flask 250 mL with 24/40 Joint (Pack of 5)

Laboy HMF010319L Glass Single Neck Round Bottom Boiling Flask 250 mL with 24/40 Joint (Pack of 5) Lowest new price: $45.99
List price: $45.99
Brand: LABOY
Model: HMF010319L

Round-bottom flasks (also called round-bottomed flasks, Flasks, round bottom, or RB Flasks)having spherical bottoms are more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface. Because of the spherical bottom, cork rings are needed to keep the round bottom flasks upright. When in use, round-bottom flasks are commonly held at the neck by flask clamps on a stand. The flasks are usually used in heating or boiling a liquid, in distillation as distilling flasks and receiving flasks for the distillate, used as the distilling flasks in rotary evaporators. Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.

Features:

  • Single neck
  • Round bottom flask
  • With 24/40 joint
  • Capacity of 250Ml

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213L15 Karter Scientific 1000ml Round Bottom Florence Boiling Flask

213L15 Karter Scientific 1000ml Round Bottom Florence Boiling Flask Lowest new price: $10.73
List price: $10.73
Brand: Karter Scientific

Round Bottom Florence Boiling Flasks. Designed to ASTM E-1403. High quality inert 3.3 borosilicate glass. Excellent chemical durability for contamination-free results. Heavy Duty and reusable. Designed for great shock resistance.

Features:

  • Designed to ASTM E-1403
  • High quality inert 3.3 borosilicate glass
  • Excellent chemical durability for contamination-free results
  • Heavy Duty Reusable
  • Designed for great shock resistance

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1000ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W12 (Single)

1000ml Volumetric Flask, 3.3 Boro Glass, Class A, Ground Stopper, Karter Scientific 213W12 (Single) Lowest new price: $12.75
List price: $12.75
Brand: Karter Scientific

Karter Scientific Class A Volumetric Flasks are manufactured from high quality inert 3.3 borosilicate glass and meet the tolerances requirements as established by ASTM E-694 - ASTM E-542 - and ASTM E-288. Flat bottom. Volumetric flasks provide improved lab convenience, broad selection and precise volume measurement. Accuracy limits conforms to ISO 1042 Laboratory Glassware-One mark volumetric flasks. With one permanent circular mark. Printed with fused-on enamel color, resistant to most acid and alkaline solutions. Calibration is based on the poured in volume ("In") at a +20°C reference temperature.

Features:

  • Class A
  • Material: 3.3 Borosilicate Glass
  • Flat Bottom
  • Ground Stopper

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Laboy HMF010108 Glass Single Neck Flat Bottom Boiling Flask 500 mL with 24/40 Glass Joint

Laboy HMF010108 Glass Single Neck Flat Bottom Boiling Flask 500 mL with 24/40 Glass Joint Lowest new price: $11.34
List price: $11.33
Brand: LABOY
Model: HMF010108

The flat bottom flask is likely the other round bottom flask but with a flat bottom allowing it standing up flat surface as the flask can sit upright on its own. Capacity of 500mL with 24/40 glass ground taper joint. It can be used in heading during distillation, they are not as durable as round bottom flasks for heating better than Erlenmeyer flask which has have the sharp and vulnerable corners .Laboy glass flasks are heavy wall design, made by hand-blowing to ensure uniform wall thickness, and made of high-quality borosilicate glass and annealed at 800 degree Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.

Features:

  • Single neck
  • Flat bottom flask
  • With 24/40 joint
  • Capacity of 500Ml
  • Made by hand blowing

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