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Flasks

Score 8.01

Aldrich® filtering flask, heavy-wall SKU : Z568287

Sigma-Aldrich

Capacity
/
/
Material
borosilicate glass
borosilicate glass
Sterility
/
/
From
$ 188.60 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
Z568287-1EA
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Flasks

Score 8.01

Aldrich® filtering flask with hose barb, heavy-wall SKU : Z568317

Sigma-Aldrich

Capacity
/
/
Material
borosilicate glass
borosilicate glass
Sterility
/
/
From
$ 127.00 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
Z568317-1EA
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Flasks

Score 7.99

Storage bottles with septum-inlet SKU : Z148024

Sigma-Aldrich

Capacity
/
/
Material
PTFE stopcock;clear glass
PTFE stopcock;clear glass
Sterility
/
/
From
$ 196.00 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
Z148024-1EA
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Flasks

Score 8.00

Storage bottles without joints SKU : Z103292

Sigma-Aldrich

Capacity
/
/
Material
PTFE stopcock
PTFE stopcock
Sterility
/
/
From
$ 182.00 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
Z103292-1EA
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Flasks

Score 7.99

Ace drying flask, pear-shaped, with side indents, SKU : Z682748

Sigma-Aldrich

Capacity
/
/
Material
flask pear-shaped;plastic-coated glass
flask pear-shaped;plastic-coated glass
Sterility
/
/
From
$ 176.30 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
Z682748-1EA
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Flasks

Score 7.99

Aldrich® microscale flask, round-bottom SKU : Z684279

Sigma-Aldrich

Capacity
/
/
Material
flask round bottom;glass
flask round bottom;glass
Sterility
/
/
From
$ 26.75 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
Z684279-1EA
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Flasks

Score 7.99

Aldrich® Erlenmeyer flask with ST joint SKU : Z723061

Sigma-Aldrich

Capacity
/
/
Material
borosilicate glass
borosilicate glass
Sterility
/
/
From
$ 64.00 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
Z723061-1EA
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Flasks

Score 1.25

Pressure Reaction Vessels And Accessories SKU: 110122 0006

Andrews Glass

From
$ 364.13 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
110122 0006
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Flasks

Score 1.25

Pressure Reaction Vessels And Accessories SKU: 110452 0012

Andrews Glass

From
$ 235.76 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
110452 0012
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Flasks

Score 4.15

Pressure Reaction Vessels And Accessories SKU: 110502 0006

Andrews Glass

From
$ 567.04 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
110502 0006
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Flasks

Score 1.25

Pressure Reaction Vessels And Accessories SKU: 110551 0012

Andrews Glass

From
$ 102.51 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
110551 0012
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Flasks

Score 4.07

Pressure Reaction Vessels And Accessories SKU: 110809 0001

Andrews Glass

From
$ 39.22 (1 Unit)
Sizes
1 (1 Unit)
Catalog IDs
110809 0001
Added to comparison remove item

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Lab Flask Features

A flask, on the other hand, is similar to a beaker but has a narrow tubular neck towards the top, and sometimes a round bottom.

Of all the various laboratory flasks out there, the Erlenmeyer flask is the most well known. As stated above, flasks come in a wide variety of forms, but its most common characteristic is its wide base and narrow neck. Flask sizes depend on their selected volume and are typically graduated. Similar to beakers, lab flasks can be made of borosilicate glass or polyethylene polypropylene plastics.

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Lab Flask Options

Due to their practicality, there are a wide variety of flask types:

Reaction flask: round-bottom flasks with specialized necks to connect to other equipment like a reflux condenser. Typically made out of thick glass to withstand pressure, heat, and vacuums.

Distillation flask: As the name implies, specialized to handle liquids that are to be distilled. They come in various sizes but are made of a thinner glass to introduce more heat. Also known as a Kjeldahl flask

Reagent Flask: either flat or round-bottom and cannot withstand too much pressure or temperature differences.

Erlenmeyer flask: Shaped like a cone and come with various volumetric sizes. They are one of the most common types of flask.

Volumetric flask: For preparing liquids dependent on volumetric precision.

Dewar flask: Come in various shapes and sizes, but their common characteristic is their double-walled feature to create a near vacuum in between the glass.

Evaporating flask: Specific for rotary evaporators

Powder flask: For drying powdered substances

Retorts: An older style of flask used for distillation, but have been largely replaced by other flasks

Buechner flask: Similar to an Erlenmeyer flask, but come with a barb at the neck to attach to other lab equipment.

Culture Flask: For cell culturing