You Searched For: Round Bottom Flasks

Specifically shaped for uniform heat distribution, the round bottom flasks are used for distillation, chemical reactions, heating liquid sample, and storage demands. Manufactured from resistant glass, the spherical containers will spread encountered stress evenly across surfaces to prevent fracturing. Built with temperature resistance, the glassware is an essential piece in reflux set-ups. Primarily used for chemical and biochemical research, the round bottom flasks have short or long neck options.

Specifically shaped for uniform heat distribution, the round bottom flasks are used for distillation, chemical reactions, heating liquid sample, and storage demands. Manufactured from resistant glass, the spherical containers will spread encountered stress evenly across surfaces to prevent fracturing. Built with temperature resistance, the glassware is an essential piece in reflux set-ups. Primarily used for chemical and biochemical research, the round bottom flasks have short or long neck options.


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Catalog Number: (14203-254)
Supplier: SP Industries
Description: With two vertical necks and a round bottom, these borosilicate glass flasks feature a side neck Standard Taper 24/40 outer joint


Supplier: Ace Glass
Description: Round-bottom flasks with five necks and [ST] outer joints

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Supplier: Ace Glass
Description: Round-bottom flasks with [ST] outer joint and septum port with 2mm bore 1:5 PTFE stopcock

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: European style flasks have tapered walls with a shallow bottom for more efficient magnetic or mechanical half-moon shaped paddle stirring

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: These pear-shaped flasks have a side arm for use with a rubber stopper (not included)

Small Business Enterprise Product available on GSA Advantage®

Catalog Number: (89074-922)
Supplier: Ace Glass
Description: These microscale, pear-shaped flasks have joints that are a combination cap, thread and [ST] joint to accommodate and seal other microscale apparatus

Small Business Enterprise Product available on GSA Advantage®


Supplier: Ace Glass
Description: Multipurpose, pear-shaped flasks feature a modified side for easier insertion of spatulas or brushes for removal of solids, or for cleaning

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: Flasks have tapered walls to allow continuous operation with smaller volumes

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: European style flasks have tapered walls with a shallow bottom for more efficient magnetic or mechanical half-moon shaped paddle stirring

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: Round-bottom flasks with three necks and [ST] outer joints

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: Flat-bottom flask can sit directly on heater or stirrer without other support

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: This round-bottom flask has a center neck with a [SJ] 35/25 top joint and an angled side port thermometer well

Small Business Enterprise Product available on GSA Advantage®

Catalog Number: (89055-412)
Supplier: Ace Glass
Description: Rugged spherical reaction flasks with Duran flat flange and O-ring groove are for use with quick release clamps (sold separately).

Small Business Enterprise Product available on GSA Advantage®


Supplier: Ace Glass
Description: Rugged spherical jacketed reaction flask with Duran style flat flange with O-ring groove, for use with Ace Glass quick release clamp. Each flask is supplied with one CAPFE (PTFE encapsulated silicone) o-ring. Plain silicone O-rings are also available. The 12 liter size is supplied with capacity reference graduations. Inlet and outlet are size 28/15 O-ring ball joints, sealed tangentially.

Small Business Enterprise Product available on GSA Advantage®

Catalog Number: (89001-270)
Supplier: DWK Life Sciences (KIMBLE)
Description: Full-length, short neck flasks are RAY-SORB® processed to provide protection to solutions sensitive to short-wavelength light.

Supplier: Corning
Description: PYREX® 7740 borosilicate glass, clear, with short neck.
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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