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Boiling Flasks

Boiling Flasks

Boiling flasks are used for heating and boiling of liquids. The flasks are designed to have round bodies with long, thin necks to facilitate uniform heat distribution and minimize evaporation. Boiling flasks are typically made of borosilicate glass, which is resistant to thermal shock and chemicals. Some boiling flasks have rounded or conical bottoms and need support to stand upright, while others have flat bottoms and can stand alone.
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1 – 15 of 104 results
1

Lenz Laborglasinstrumente™ Two-Neck Round Bottom Flasks, Side Neck Angled

Especially made for distillation, reactions and to make solutions or hold, contain and collect chemicals. Lenz Laborglasinstrumente™ Two-Neck Round Bottom Flasks, Side Neck Angled are manufactured from durable DURAN™ borosilicate glass.

Bottom Shape Round
Material Borosilicate Glass,Duran Glass
2

Quickfit™ Three-Neck Round-Bottom Glass Flask

Useful for introducing gas inlet tubes and thermometers into the flask. The Quickfit Jointed Ware™ Quickfit™ Three-Neck Round-Bottom Flask has precision-ground sockets from borosilicate glass.

Material Borosilicate Glass
3

DWK Life Sciences DURAN™ Round Bottom Flask, with standard ground joint

Round flasks are used for reactions of all kinds, e.g. using heat during distillation or extraction, as receiving flasks, for freezing or in vacuum apparatus.

Material Borosilicate Glass (3.3)
Autoclavable Autoclavable
For Use With (Application) Distillation; Extraction; Connection to other glass vessels; Heating; Suitable for heating baths and mantles; Evaporation of liquids; Suitable for mounting on tripods; Drying of materials; Volume sizes 25 mL (NS 19/26), 50 mL (NS 24/29 and NS 29/32), 500 mL (NS 45/40), 1000 mL (NS 45/40) and 2000 mL (NS 45/40) are not accordting to DIN ISO
4

Lenz Laborglasinstrumente™ Duran™ Medium-neck Round Bottom Flasks

Manufactured from Duran™ glass. Lenz Laborglasinstrumente™ Duran™ Medium-neck Round Bottom Flasks include a conical ground joint.

Neck Style Medium
Bottom Shape Round
Material Borosilicate Glass,Duran Glass
Certifications/Compliance DIN EN ISO 4797
5

Quickfit™ Short Neck Round Bottom Flask

Manufactured from borosilicate glass. Quickfit Jointed Ware™ Quickfit™ Short Neck Round Bottom Flask offers corrosion-free performance and resistance to thermal shock.

Neck Style Short
Bottom Shape Round
Material Borosilicate Glass
Certifications/Compliance Body diameter and wall thickness comply with relevant ISO 1773 and ISO 4797 requirements
6

Lenz Laborglasinstrumente™ Three-Neck Round Bottom Flasks, Side Necks Angled

Especially made for distillation, reactions and to make solutions or hold, contain and collect chemicals. Lenz Laborglasinstrumente™ Three-Neck Round Bottom Flasks, Side Necks Angled are manufactured from durable DURAN™ borosilicate glass.

Bottom Shape Round
Material Borosilicate Glass,Duran Glass
7

Lenz Laborglasinstrumente™ Round Bottom Three-Neck Flasks

Especially made for reactions and distillation and can be used to make solutions or hold, contain and collect chemicals. Lenz Laborglasinstrumente™ Round Bottom Three-Neck Flasks are manufactured from durable DURAN™ glass.

8

Quickfit™ Borosilicate Glass Short Neck Flat Bottom Flask

Manufactured from borosilicate glass. Quickfit Jointed Ware™ Quickfit™ Borosilicate Glass Short Neck Flat Bottom Flask complies with ISO 1773 and ISO 4797.

Neck Style Short
Bottom Shape Flat
Material Borosilicate Glass
Certifications/Compliance ISO 1773, ISO 4797
9

Lenz Laborglasinstrumente™ Flat Bottom Flask with Conical Ground Joint

For the collection, mixing and measuring of liquids and cultivating media. Lenz Laborglasinstrumente™ Flat Bottom Flasks with Conical Ground Joint are manufactured from durable DURAN™ glass.

10

DWK Life Sciences DURAN™ Flat Bottom Flask, with standard ground joint

Flat bottom flasks are suitable for pressureless work. Due to the standard ground joint, plungers can be connected to other ground joint components or closed with ground joint plugs.

Material Borosilicate Glass (3.3)
No. per Pack 10/Pk.
Autoclavable Autoclavable
For Use With (Application) Diluting solutions; Heating; Volume sizes 250 mL (NS 24/29), 500 mL (NS 24/29), 1000 mL (NS 24/29) and 2000 mL (NS 29/32) are not according to DIN ISO
11

Lenz Laborglasinstrumente™ Flat Bottom Flask with Conical Ground Joint

For the collection, mixing and measuring of liquids and cultivating media. Lenz Laborglasinstrumente™ Flat Bottom Flasks with Conical Ground Joint are manufactured from durable DURAN™ glass.

12

Lenz Laborglasintrumente™ Angled Two-Neck Round-Bottom Flask

Distillation flasks with angled side neck (20°)

Material Borosilicate Glass (3.3)
No. per Pack 1
13

Lenz Laborglasinstrumente™ Three-Neck Round Bottom Flasks, Side Necks Parallel

Especially made for distillation, reactions and to make solutions or hold, contain and collect chemicals. Lenz Laborglasinstrumente™ Three-Neck Round Bottom Flasks, Side Necks Parallel are manufactured from durable DURAN™ borosilicate glass.

Bottom Shape Round
Material Borosilicate Glass,Duran Glass
14

DWK Life Sciences Wheaton™ Flat Bottom Flasks For Soxhlet Extraction Apparatus

Manufactured from WHEATON 33 low extractable borosilicate glass that conforms to USP Type I and ASTM E 438 Type I, Class A requirements

Standard Taper Joint 24/40
Bottom Shape Flat
Material Borosilicate Glass
For Use With (Application) For continuous extraction of analytes from a solid into an organic solvent
15

Lenz Laborglasinstrumente™ Lenz Laborglasinstrumente™ Duran™ Three-neck Round Bottom Reaction Flasks – Parallel side necks include ground conical joints. DIN 12392 compliant

Manufactured from DURAN™ glass. Lenz Laborglasinstrumente™ Duran™ Three-neck Round Bottom Reaction Flasks include two parallel side necks in addition to the main neck, each with conical ground joints.

Neck Style Three Neck
Standard Taper Joint NS 29/32
Bottom Shape Round
Material Borosilicate Glass,Duran Glass
Certifications/Compliance DIN 12392