22 Best and Coolest Bottom Flasks for 2019

 

Chemglass CG-1506-05 Glass 100mL Heavy Wall Single Neck Round Bottom Flask with 2440 Standard Taper Outer Joint

Chemglass CG-1506-05 Glass 100mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint

Chemglass CG-1506-05 Glass 100mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint - Come with 24/40 standard taper outer joint. Heavy wall single neck round bottom flask. 100ml capacity.

 

NANSHIN Glassware1000ml2 neck2440​Round Bottom Flask1LD​ouble NecksLabo​ratory Boiling Bottle

NANSHIN Glassware,1000ml,2 neck,24/40​,Round Bottom Flask,1L,D​ouble Necks,Labo​ratory Boiling Bottle

NANSHIN Glassware,1000ml,2 neck,24/40​,Round Bottom Flask,1L,D​ouble Necks,Labo​ratory Boiling Bottle - Annealing point ——560℃ linear coefficient of expansion —— 32×10-7/℃ softening point ——820℃ 2 the thickness of the flask is 2. This borosilicate glass with low linear coefficient of expansion is ideal choice for fabricating laboratory glassware. 3 borosilicate glass. 1000ml,2 neck,24/40 ,round bottom flask,1l,d ouble necks,labo ratory boiling bottle 1 be made of g3. 5mm.

 

Chemglass CG-1506-17 Glass 250mL Heavy Wall Single Neck Round Bottom Flask with 2440 Standard Taper Outer Joint

Chemglass CG-1506-17 Glass 250mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint

Chemglass CG-1506-17 Glass 250mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint - The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask. Flasks with joint sizes other than those listed are available. Round bottom, heavy wall single short neck flask with a standard taper outer joint.

 

NANSHIN Glassware150ML single neck round bottom flask heavy wall2440 jointlab glassware flask

NANSHIN Glassware,150ML single neck round bottom flask, heavy wall,24/40 joint,lab glassware flask

NANSHIN Glassware,150ML single neck round bottom flask, heavy wall,24/40 joint,lab glassware flask - 5mm. This borosilicate glass with low linear coefficient of expansion is ideal choice for fabricating laboratory glassware. Annealing point ——560℃ linear coefficient of expansion —— 32×10-7/℃ softening point ——820℃ 2 the thickness of the flask is 2. 150ml single neck round bottom flask, heavy wall,24/40 joint,lab glassware flask 1 be made of g3. 3 borosilicate glass.

 

Precision 500mL Three Angled Neck Round Bottom Flask 2440 Heavy Wall Borosilicate Glass

Precision 500mL Three Angled Neck Round Bottom Flask, 24/40, Heavy Wall, Borosilicate Glass

Precision 500mL Three Angled Neck Round Bottom Flask, 24/40, Heavy Wall, Borosilicate Glass - Three-neck round bottom flask with standard taper outer joints of 24/40 on both the center neck and angled side necks. Heavy wall design increases mechanical strength. Catalog no. 303027 style three-neck, round bottom flask size 500 ml joint 24/40 material borosilicate glass astm spec e438 supplier precision labware.

 

Laboy HMF010319 Glass Single Neck Round Bottom Boiling Flask 250 mL with 2440 Joint

Laboy HMF010319 Glass Single Neck Round Bottom Boiling Flask 250 mL with 24/40 Joint

Laboy HMF010319 Glass Single Neck Round Bottom Boiling Flask 250 mL with 24/40 Joint - The flasks are usually used in heating or boiling a liquid, in distillation as distilling flasks and receiving flasks for the distillate, used as the distilling flasks in rotary evaporators. Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling. When in use, round-bottom flasks are commonly held at the neck by flask clamps on a stand. Because of the spherical bottom, cork rings are needed to keep the round bottom flasks upright. Round-bottom flasks (also called round-bottomed flasks, flasks, round bottom, or rb flasks)having spherical bottoms are more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface.

 

Laboy HMF010108 Glass Single Neck Flat Bottom Boiling Flask 500 mL with 2440 Glass Joint

Laboy HMF010108 Glass Single Neck Flat Bottom Boiling Flask 500 mL with 24/40 Glass Joint

Laboy HMF010108 Glass Single Neck Flat Bottom Boiling Flask 500 mL with 24/40 Glass Joint - The flat bottom flask is likely the other round bottom flask but with a flat bottom allowing it standing up flat surface as the flask can sit upright on its own. Capacity of 500ml with 24/40 glass ground taper joint. It can be used in heading during distillation, they are not as durable as round bottom flasks for heating better than erlenmeyer flask which has have the sharp and vulnerable corners. Laboy glass flasks are heavy wall design, made by hand-blowing to ensure uniform wall thickness, and made of high-quality borosilicate glass and annealed at 800 degree celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling.

 

Chemglass CG-1506-23 Glass 1000mL Heavy Wall Single Neck Round Bottom Flask with 2440 Standard Taper Outer Joint

Chemglass CG-1506-23 Glass 1000mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint

Chemglass CG-1506-23 Glass 1000mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint - Meets astm international e438, type 1, class a specifications for low-expansion borosilicate glass. 500 degree c maximum short-time temperature. 1000ml heavy wall round-bottom flask for uniform heating or boiling of liquids and ease of swirling. 130mm diameter and 24/40 standard taper outer joint. Borosilicate glass for clarity, strength, heat-, and chemical-resistance.

 

WPI CG-0251 Glass Round Bottom Boiling Flask Long Neck Tooled Mouth 205mm Height 500mL Capacity

WPI CG-0251 Glass Round Bottom Boiling Flask, Long Neck, Tooled Mouth, 205mm Height, 500mL Capacity

WPI CG-0251 Glass Round Bottom Boiling Flask, Long Neck, Tooled Mouth, 205mm Height, 500mL Capacity - 26mm inside diameter (id) neck accepts #6 stopper (sold separately). 205mm overall height and 100mm neck length. 500ml round-bottom flask with long neck for uniform heating or boiling of liquids and ease of swirling. Meets astm international e1403 type 2, class 2 specifications for flask dimensions. Borosilicate glass for clarity, strength, heat-, and chemical-resistance.

 

Wilmad-LabGlass LG-7330-248 3-Vertical Neck Round Bottom Flask 5L Standard Taper 4550 Center Standard Taper 2440 Side

Wilmad-LabGlass LG-7330-248 3-Vertical Neck Round Bottom Flask, 5L, Standard Taper 45/50 Center, Standard Taper 24/40 Side

Wilmad-LabGlass LG-7330-248 3-Vertical Neck Round Bottom Flask, 5L, Standard Taper 45/50 Center, Standard Taper 24/40 Side - Available in various sizes, these borosilicate glass round bottom flasks have three vertical necks with standard taper outer joints. The side necks are 180° apart.

 

Capitol Brand CBV-V107997-CS PFA Plastic 500mL Round Bottom Flask with 2932 Tapered Joint

Capitol Brand CBV-V107997-CS PFA Plastic 500mL Round Bottom Flask with 29/32 Tapered Joint

Capitol Brand CBV-V107997-CS PFA Plastic 500mL Round Bottom Flask with 29/32 Tapered Joint - Maximum operating temperature of the pfa round bottom flask under vacuum is 50c ns 29/33. Offers superior clean ability to glass, ptfe and polypropylene containers, reducing risk of sample carryover in trace analysis applications. 500ml pfa plastic round bottom boiling flask. Corrosion- and leach-resistant flask is excellent for rotary evaporation and distillation of high-purity chemicals. Manufactured from pfa (a perfluoroalkoxy polymer) for excellent resistance to heat and chemical contamination, as well as smooth surfaces that greatly simplify cleaning.

 

Chemglass CG-1506-20 Glass 500mL Heavy Wall Single Neck Round Bottom Flask with 2440 Standard Taper Outer Joint

Chemglass CG-1506-20 Glass 500mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint

Chemglass CG-1506-20 Glass 500mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint - Round bottom, heavy wall single short neck flask with a standard taper outer joint. Flasks with joint sizes other than those listed are available. The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask.

 

Laboy HMF011337 Glass 1000 mL 2 Neck Round Bottom Boiling Flask with 2440 Center and Side Joints Angled

Laboy HMF011337 Glass 1000 mL 2 Neck Round Bottom Boiling Flask with 24/40 Center and Side Joints Angled

Laboy HMF011337 Glass 1000 mL 2 Neck Round Bottom Boiling Flask with 24/40 Center and Side Joints Angled - With 2 necks having the same joints laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling. This multi-neck flask has two standard taper ground joint on the centre neck and the side angled neck.

 

Laboy HMF010309 Glass Single Neck Round Bottom Boiling Flask 50 mL with 2440 Joint

Laboy HMF010309 Glass Single Neck Round Bottom Boiling Flask 50 mL with 24/40 Joint

Laboy HMF010309 Glass Single Neck Round Bottom Boiling Flask 50 mL with 24/40 Joint - Because of the spherical bottom, cork rings are needed to keep the round bottom flasks upright. The flasks are usually used in heating or boiling a liquid, in distillation as distilling flasks and receiving flasks for the distillate, used as the distilling flasks in rotary evaporators. Round-bottom flasks (also called round-bottomed flasks, flasks, round bottom, or rb flasks)having spherical bottoms are more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface. Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling. When in use, round-bottom flasks are commonly held at the neck by flask clamps on a stand.

 

Laboy HMF010329 Glass Single Neck Round Bottom Boiling Flask 500 mL with 4550 Joint

Laboy HMF010329 Glass Single Neck Round Bottom Boiling Flask 500 mL with 45/50 Joint

Laboy HMF010329 Glass Single Neck Round Bottom Boiling Flask 500 mL with 45/50 Joint - Because of the spherical bottom, cork rings are needed to keep the round bottom flasks upright. When in use, round-bottom flasks are commonly held at the neck by flask clamps on a stand. Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling. The flasks are usually used in heating or boiling a liquid, in distillation as distilling flasks and receiving flasks for the distillate, used as the distilling flasks in rotary evaporators. Round-bottom flasks (also called round-bottomed flasks, flasks, round bottom, or rb flasks)having spherical bottoms are more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface.

 

Chemglass CG-1506-25 Glass 2000mL Heavy Wall Single Neck Round Bottom Flask with 2440 Standard Taper Outer Joint

Chemglass CG-1506-25 Glass 2000mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint

Chemglass CG-1506-25 Glass 2000mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint - Round bottom, heavy wall single short neck flask with a standard taper outer joint. Flasks with joint sizes other than those listed are available. The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask.

 

Chemglass CG-1508-P-35 Glass 2000mL Heavy Wall Single Neck Round Bottom Flask with 3525 Spherical Socket Joint

Chemglass CG-1508-P-35 Glass 2000mL Heavy Wall Single Neck Round Bottom Flask, with 35/25 Spherical Socket Joint

Chemglass CG-1508-P-35 Glass 2000mL Heavy Wall Single Neck Round Bottom Flask, with 35/25 Spherical Socket Joint - Round bottom, heavy wall single short neck flask for use on rotary evaporators for receiving distillate. Plastic coated to prevent injury from broken glass while preventing spillage of hazardous materials. Joint at the top of the flask is a 35/25 socket.

 

GSC International FFB500-2440 GLASS Gsc Flat Bottom Boiling Flask 500 mL with 2440 Ground GLASS Joint 16907 fl oz Capacity

GSC International FFB500-24/40 GLASS Gsc Flat Bottom Boiling Flask, 500 mL, with 24/40 Ground GLASS Joint, 16.907 fl. oz. Capacity

GSC International FFB500-24/40 GLASS Gsc Flat Bottom Boiling Flask, 500 mL, with 24/40 Ground GLASS Joint, 16.907 fl. oz. Capacity - The flask has a 24/40 ground glass joint for, and thick walls. This quality 500ml flat bottom boiling flask is made from borosilicate glass, and is heat resistant.

 

Laboy Cork Stand Round Bottom Flask Stand 140mm In Diameter For 1000Ml Flask

Laboy Cork Stand Round Bottom Flask Stand 140mm In Diameter For 1000Ml Flask

Laboy Cork Stand Round Bottom Flask Stand 140mm In Diameter For 1000Ml Flask - For 1000ml flask. 140mm in diameter. Cork stand.

 

Chemglass CG-1506-29 Glass 5000mL Heavy Wall Single Neck Round Bottom Flask with 2440 Standard Taper Outer Joint

Chemglass CG-1506-29 Glass 5000mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint

Chemglass CG-1506-29 Glass 5000mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint - Flasks with joint sizes other than those listed are available. The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask. Round bottom, heavy wall single short neck flask with a standard taper outer joint.

 

Chemglass CG-1506-02 Glass 50mL Heavy Wall Single Neck Round Bottom Flask with 2440 Standard Taper Outer Joint

Chemglass CG-1506-02 Glass 50mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint

Chemglass CG-1506-02 Glass 50mL Heavy Wall Single Neck Round Bottom Flask, with 24/40 Standard Taper Outer Joint - Come with 24/40 standard taper outer joint. Heavy wall single neck round bottom flask. 50ml capacity.

 

Laboy LB4500L Cork Stands 80 mm 100 mm 120 mm 140 mm Diameter for 50 to 1000 mL Round Bottom Flasks Pack of 4

Laboy LB4500L Cork Stands 80 mm, 100 mm, 120 mm, 140 mm Diameter for 50 to 1000 mL Round Bottom Flasks (Pack of 4)

Laboy LB4500L Cork Stands 80 mm, 100 mm, 120 mm, 140 mm Diameter for 50 to 1000 mL Round Bottom Flasks (Pack of 4) - Set of cork stands including 4 size 80mm for 50 to 100ml flask, 100mm for 250ml flask, 120mm for 500ml flask, 140mm for 1000ml flask.