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Kjeldahl Flasks

Kjeldahl flasks are round bottom flasks with long wide necks that are used in Kjeldahl method for quantitative determination of sample nitrogen content. Kjeldahl flasks are typically manufactured from borosilicate glass, which is resistant to heat and chemicals. Flasks are available in a wide-range of capacities, with or without tooled necks or reinforced bead at the top.
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1 – 15 of 37 results
1

Corning™ PYREX™ Long Neck Kjeldahl Flasks
GSA_VA GREENER_CHOICE

Long necks, round bottoms, substantial walls

EDGE
Disposable Reusable
Neck Style Long
Bottom Shape Round
Material Borosilicate Glass
No. per Pack 6/Pk.
2

DWK Life Sciences Kimble™ KIMAX™ Kjeldahl Flasks
SDP

Reinforced bead at the top

Includes Reinforced bead
Neck Style Tooled
Material Borosilicate Glass
Closure Material Rubber
3

DWK Life Sciences Kimble™ Kontes™ Heavy Wall Recovery Flasks with Standard Bead, standard taper Outer Joint
SDP

Designed for easy recovery of reaction products. Total contents are accessible with a spatula or policeman.

Neck Style Single
For Use With (Equipment) Rotary Evaporator
No. per Case 1/Cs.
Material Glass
For Use With (Application) Designed for easy recovery of reaction products
4

DWK Life Sciences Kimble™ Kontes™ Heavy Wall Recovery Flasks with Square Bead, standard taper Outer Joint
SDP

Ideal for use with rotary evaporators

Neck Style Single
For Use With (Equipment) Rotary Evaporator
Material Borosilicate Glass
5

Velp Scientifica™ Connection For Test Tubes
SDP

Velp Scientifica™ Connection For Test Tubes For use with UDK Distillation Units.

6

Eisco™ Glass Kjedahl Flasks with Socket
SDP SCI_ED

Kjedahl flasks made from high quality borosilicate glass. Designed with a round bottom, long neck, and socket. Used for nitrogen determination as per the Kjedahl mthod. Conforms to DIN ISO 12360 standard

Disposable Reusable
Neck Style Long
Description Chemical durability
Mouth Style Beaded
Color Clear
Quantity 1
Bottom Shape Round
Material Borosilicate Glass
For Use With (Application) Heating / Holding Liquids
Sterility Non-sterile
Product Type Kjeldahl Flasks
For Use With (Equipment) Nitrogen
Surface Treatment Non-treated
Graduated No
Certifications/Compliance DIN ISO 12360
Autoclavable Autoclavable
7

Eisco™ Glass Kjedahl Flasks, Plain Neck
SDP SCI_ED

Kjedahl flasks made from high quality borosilicate glass. Designed with a round bottom and plain long neck. Used for nitrogen determination as per the Kjedahl mthod. Conforms to DIN ISO 12360 standard

Neck Style Long
Mouth Style Beaded
Product Type Kjeldahl Flasks
Color Clear
Graduated No
Bottom Shape Round
Material Borosilicate Glass
Autoclavable Autoclavable
For Use With (Application) Heating / Holding Liquids
Sterility Non-sterile
8

Chemglass Life Sciences 200mL Flask, Reaction, 24/40 Outer Joint, 2mm Glass Stpk, Airfree, Schlenk

200mL Flask, Reaction, 24/40 Outer Joint, 2mm Glass Stpk, Airfree, Schlenk. Kjeldahl shape facilitates heating and stirring while permitting easy transfer of liquids or solids. Lower portion of flask fits standard heating mantles. Available with a choice of a 2mm high vacuum glass stopcock having a Stainless Steel constant pressure retaining device or a 0-4mm Chem-Cap Airfree inlet valve.

ENCOMPASS_PREFERRED
9

Chemglass Life Sciences 500mL Flask, Reaction, 24/40 Outer Joint, 2mm Glass Stpk, Airfree, Schlenk

500mL Flask, Reaction, 24/40 Outer Joint, 2mm Glass Stpk, Airfree, Schlenk. Kjeldahl shape facilitates heating and stirring while permitting easy transfer of liquids or solids. Lower portion of flask fits standard heating mantles. Available with a choice of a 2mm high vacuum glass stopcock having a Stainless Steel constant pressure retaining device or a 0-4mm Chem-Cap Airfree inlet valve.

ENCOMPASS_PREFERRED
10

Ace Glass, Inc. FLASK KJELDAHL 800ML 29/42 FLASK KJELDAHL 800ML 29/42

FLASK KJELDAHL 800ML 29/42

ENCOMPASS_PREFERRED
11

Chemglass Life Sciences 200mL Flask, Reaction, 14/20 Outer Joint, Valve, Airfree, Schlenk

200mL Flask, Reaction, 14/20 Outer Joint, Valve, Airfree, Schlenk. Kjeldahl shape facilitates heating and stirring while permitting easy transfer of liquids or solids. Lower portion of flask fits standard heating mantles. Available with a choice of a 2mm high vacuum glass stopcock having a Stainless Steel constant pressure retaining device or a 0-4mm Chem-Cap Airfree inlet valve.

ENCOMPASS_PREFERRED
12

KJELDAHL TAB CU-3.5 250PK

NC3588704 KJELDAHL TAB CU-3.5 250PK

ENCOMPASS
13

QUARTZ KJELDAHL FLASK 250CC

NC2599836 QUARTZ KJELDAHL FLASK 250CC

ENCOMPASS
14

Ace Glass, Inc. FLASK KJELDAHL 100ML 24/40 FLASK KJELDAHL 100ML 24/40

FLASK KJELDAHL 100ML 24/40

ENCOMPASS_PREFERRED
15

Ace Glass, Inc. FLASK KJELDAHL 300ML 24/40 FLASK KJELDAHL 300ML 24/40

FLASK KJELDAHL 300ML 24/40

ENCOMPASS_PREFERRED