Ask Qorpak
Guaranteed response
within 1 business day

Browse Products


  Learn More About

PYREX® Kjeldahl Flasks

Of all the common laboratory test methods, the Kjeldahl method for determining nitrogen subjects the boiling flask to the most severe thermal and chemical abuse. These round bottom Kjeldahl Flasks, specially styled, have long tooled finished necks for extra strength and uniform stopper fit (stoppers not included ).  Wall thickness of the borosilicate glass is controlled to offer the optimum balance between thermal shock and chemical resistance. Can be used in ASTM E-258 procedure (“Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method”). Care must be taken to ensure the bottoms of the Kjeldahl flasks do not come in contact with the heating elements. Most Kjeldahl equipment manufacturers have ring supports for this purpose. Reference: ASTM E-1377 (Specs for laboratory glass Kjeldahl flasks)

Click on Item# to view possible quantity discounts that may be available.
    • Item#
    • Description
    • Price
    • Quantity
    • AKM-2600-0037
    • 100ml Pyrex Clear Borosilicate Glass Kjeldahl Flask Rubber Stopper No. 2 Approx. O.D. x Height (mm) 55 x 210, Case of 6
    • $112.15
    • AKM-2600-0038
    • 300ml Pyrex Clear Borosilicate Glass Kjeldahl Flask Rubber Stopper No. 5 Approx. O.D. x Height (mm) 79 x 298, Case of 6
    • $230.35
    • Page Title
    • Page Link
    • Your Search on "" Returned 0 Results for Virtual Pages

You May Also Be Interested In These Items