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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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.

Pricing and Availability
Specifications

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

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.

Pricing and Availability
Specifications

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

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.

Pricing and Availability
Specifications

Bottom Shape	Round
Material	Borosilicate Glass,Duran Glass

Pyrex™ Borosilicate Glass Narrow Neck Flat Bottom Boiling Flask

Manufactured from Pyrex™ glass for high resistance to thermal shock. Pyrex™ Borosilicate Glass Narrow Neck Flat Bottom Boiling Flask complies with ISO 1773 standards. Excellent chemical durability for contamination-free performance. Includes white enamel marking spot while flat base prevents spillage.

Pricing and Availability
Specifications

Neck Style	Narrow
Bottom Shape	Flat
Material	Borosilicate Glass,Borosilicate Glass
Certifications/Compliance	ISO 1773

Quickfit™ Borosilicate Glass Short Neck Round Bottom Flask

Use these flasks for a variety of applications. Quickfit™ Borosilicate Glass Short Neck Round Bottom Flask are manufactured from borosilicate glass for corrosion-free performance and resistance to thermal shock.

Pricing and Availability
Specifications

Bottom Shape	Round
Material	Borosilicate Glass
Certifications/Compliance	ISO 1773, ISO 4797

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.

Pricing and Availability
Specifications

Bottom Shape	Round
Material	Borosilicate Glass,Duran Glass

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.

Pricing and Availability
Specifications

Material	Borosilicate Glass

Quickfit™ Two-Neck Round-Bottom Glass Flask

Manufactured from borosilicate glass. Quickfit Jointed Ware™ Quickfit™ Two-Neck Round-Bottom Glass Flask has high resistance to thermal shock and chemical attack.

Pricing and Availability
Specifications

No. per Case	2
Bottom Shape	Round
Material	Borosilicate Glass

Lenz Laborglasintrumente™ Two-Neck Round-Bottom Flasks

Distillation flasks with parallel side neck and conical ground joints

Pricing and Availability
Specifications

Material	Borosilicate Glass (3.3)
For Use With (Application)	Distillation

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.

Pricing and Availability
Specifications

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

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.