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Flat Bottom Flasks

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Flat Bottom Flasks

Flat bottom flasks for heated chemical reactions or distillations are offered at VWR. Borosilicate glass models feature heavy wall construction in an array of capacities. Select a short or long neck flask to suit your purpose. A reinforced standard taper (24/40) outer joint is offered for most models, however some options do feature other joint sizes. Some flat bottom flasks conform to ASTM requirements. Purchase items individually or in packs.


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Description:   Allows small samples to be freeze dried without melt back by vacuum insulating the sample from the surrounding room atmosphere. Compatible with 40ml and 80 ml inner flasks and 750ml and 900ml outer flasks.
Catalog Number: 89187-294
Supplier: Labconco


Product available on GSA Advantage®

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Description:   1200mL. Flask Top Adapter Diameter: 1.9cm. Eliminates risk of contamination and reduces spillage. Has borosilicate glass bottom and silicone rubber top. Uniform glass walls maximize heat transfer. Wide mouth design. Supplied with 100 filter papers. Adapters sold separately.
Catalog Number: 26675-320
Supplier: Labconco


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Description:   Borosilicate glass. Fast-freeze flask, bottom, 900 ml. Freeze dry glassware.
Catalog Number: 72460-048
Supplier: Labconco


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Description:   40mL. Flask Top Adapter Diameter: 1.27cm. Eliminates risk of contamination and reduces spillage. Has borosilicate glass bottom and silicone rubber top. Uniform glass walls maximize heat transfer. Wide mouth design. Supplied with 100 filter papers. Adapters sold separately.
Catalog Number: 26675-228
Supplier: Labconco


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Description:   45[degree] adapter, borosilicate glass. 1.27cm to 1.27cm diameter valve. Attaches to Fast-Freeze flasks for connection to valve ports on drying chambers or manifolds for freeze dry systems.
Catalog Number: 26675-355
Supplier: Labconco


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Description:   Fast-Freeze Flask, Material: Borosilicate, Color: Amber, Valve Size: 3/4, Flask bottom: 59.2mm, Tall: 145mm, With adapters to valve ports, It consists of a rubber top, glass bottom/a supply of filter paper, Withstands extreme temperatures, Size: 300ml
Catalog Number: 75841-038
Supplier: Labconco



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Description:   Straight adapter, borosilicate glass. 1.27cm to 1.27cm diameter valve. Attaches to Fast-Freeze flasks for connection to valve ports on drying chambers or manifolds for freeze dry systems.
Catalog Number: 26675-352
Supplier: Labconco


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Description:   Black. Rubber. Fast-freeze flask rubber top, for 600, 900, 1200 and 2000 ml flasks. Freeze dry glassware.
Catalog Number: 74920-004
Supplier: Labconco


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Description:   Borosilicate glass. Fast-freeze flask, bottom, 600 ml. Freeze dry glassware.
Catalog Number: 26675-230
Supplier: Labconco


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Description:   Borosilicate glass. Fast-freeze flask, bottom, 1200 ml. Freeze dry glassware.
Catalog Number: 72460-050
Supplier: Labconco


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Description:   Fast-Freeze Flask bottom, Material: Borosilicate, Color: Amber, Valve Size: 3/4, Flask bottom: 90.2mm, Tall: 162mm, With adapters to valve ports, It consists of a rubber top, glass bottom/a supply of filter paper, Size: 750ml
Catalog Number: 75841-048
Supplier: Labconco



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Catalog Number: 470332-054
Supplier: Wards



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Catalog Number: 470339-756
Supplier: United Scientific Supplies



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Catalog Number: 76531-942
Supplier: United Scientific Supplies



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Description:   Single Neck Flat Bottom Flask
Catalog Number: 10170-848
Supplier: Chemglass


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Catalog Number: 76490-788
Supplier: Foxx Life Sciences



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