Kjeldahl Flasks

Kjeldahl Flasks, also known as recovery flasks, are essential laboratory glassware designed for precise nitrogen determination through the Kjeldahl method. They are integral to various industries, including agriculture, food, and environmental testing.

Crafted from high-quality borosilicate glass, Kjeldahl flasks offer excellent thermal resistance, ensuring durability during high-temperature digestion processes. Their elongated neck and round-bottom design facilitate efficient mixing and even heating, essential for accurate results. The thick-walled construction enhances safety and minimizes the risk of breakage under extreme conditions.

Available in multiple sizes, such as 10ml, 500ml, and 800ml Kjeldahl flasks, these options cater to diverse experimental requirements. The 10ml flasks are ideal for small-scale analyses, while the 500ml and 800ml versions suit larger sample volumes, providing versatility in laboratory settings.

Additionally, these flasks are compatible with various accessories, including condensers and stands, optimizing their use in Kjeldahl digestion flask setups. Whether for educational purposes or advanced research, Kjeldahl flasks ensure reliable performance and precise results in nitrogen analysis.

Kjeldahl Flasks

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  • Glass Kjedahl Flasks

    Designed for nitrogen determination as per Kjeldahl method Made of high quality Borosilicate glass Long neck, round bottom Conforms to DIN ISO 12360 standard Kjeldahl Flask has a long neck, round bottom, and is made from industrial quality borosilicate 3.3 glass. Designed for nitrogen determination...

  • PYREX® Kjeldahl Flasks

    Round bottom and long neck 30 mL size has square-cut mouth for multiple micro digestions; mouths of larger sizes are tooled for uniform rubber stopper fit. 30 mL flask conforms with ASTM Standard E 147 for microchemical apparatus; 100 mL through 800 mL flasks can be used in ASTM E 258 procedure.

  • Flasks, Kjeldahl, Long Necks

    Kjeldahl shape flask with a standard taper outer joint.

  • KIMAX Kjeldahl Flasks

    DWK Life Sciences (Kimble)

    Reinforced bead at top 300 mL and larger sizes have tooled necks 10 and 30 mL sizes are designed from ASTM Specification E 147; 100 mL through 800 mL sizes are designed from ASTM Specification E 1377, Type 1 requirements.

  • Flask, Kjeldahl

    With standard taper outer joint at top.

  • Kjeldahl Flask

    Made of high quality borosilicate glass Designed for nitrogen determination as per Kjeldahl method Conforms to DIN ISO 12360 standard Kjeldahl flask made of heavy-duty borosilicate 3.3 glass. Long neck, round bottom, and ground glass socket designed for nitrogen determination as per Kjeldahl method....

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