Glassware Catalog

Round-Bottom Flasks - Sigma-Aldrich Glassware Catalog


Filtration  •  Flat-Bottom  •  Round-Bottom  •  Multi-Neck  •  Schlenk  •  Septum-Inlet  •  Accessories

 

On this page:
Round-bottom flasksJacketed round-bottom flasksAldrich round-bottom distilling flasks Pear shaped flasksRecovery flasksDimple flasks


Round-bottom flasks


Cap. (mL)
S.T. Joint
Catalog Number
With ground-glass joint
10
14/20
25
14/20
50
14/20
50
24/40
50
29/32
100
14/20
100
24/40
100
29/32
250
14/20
250
24/40
250
29/32
500
14/20
500
24/40
500
29/32
1,000
24/40
1,000
29/32
2,000
24/40
2,000
29/32
3,000
24/40
3,000
29/32
5,000
24/40
5,000
29/32
12,000
45/50
12,000
55/50
22,000
45/50
22,000
55/50
With Clear-Seal joints, grease free and are safer for diazomethane genearation because of their smooth surfaces
25
19/22
50
19/22
100
19/22
250
19/22
500
19/22
1,000
19/22

Back to top


See the Heating Mantle Section for a full
listing of Glas-Col Series Heating Mantles



Jacketed round-bottom flasks

S.T. 24/40 joint, with two hose connections.

Cap. (mL)
Catalog Number
250
500
1,000




Back to top

Aldrich round-bottom distilling flasks

Single-neck, S.T. inner joint

Cap. (mL)
Inner
S.T. Joint
Catalog Number
100
14/20
100
24/40
100
29/32
250
14/20
250
24/40
250
29/32
500
14/20
500
24/40
500
29/32


Back to top


Pear-shaped flasks

Short neck, S.T. ground-glass joint.

Cap. (mL)
S.T. Joint
Catalog Number
5
14/20
10
14/20
25
14/20
50
14/20
50
24/40
50
29/32
100
14/20
100
24/40
100
29/32

Back to top
Recovery flasks

Cap. (mL)
S.T. Joint
Catalog Number
10
14/20
25
14/20
50
14/20
50
24/40
50
29/32
100
24/40
100
29/32
250
24/40
250
29/32
500
24/40
500
29/32
1,000
24/40
1,000
29/32
2,000
24/40
2,000
29/32


Back to top


Dimple flasks


A small indentation or dimple at the bottom of the flask acts as a reservoir to collect liquids that may then be drawn off via syringe, see Figure 1. The dimple is small enough that it does not interfere with the use of egg-shaped magnetic stirring bars. Use non-coring type syringe needles, gauges 12 to 20, that are used for piercing rubber septa.

Cap. (mL)
S.T. Joint
Catalog Number
25
14/20
50
14/20
100
14/20
100
24/40
250
24/40
500
24/40
1,000
24/40

Back to top


See the Distillation Section for a full
listing of Kugelrohr Products