Perfect for any science or home laboratory CMA-0050 Borosilicate Glass 50ml Kjeldahl Flask Long Neck Nitrogen Flask Round Bottom With Standard Tapper 24 40 Ground Glass Joint 800ml Digestion Flask Kjeldahl Corning 5420-800 Long Neck Kjeldahl Flask, Round Bottom, 800mL Capacity Laboratory Glassware For Chemistry Capacity: 800 mL. Material: borosilicate glass , long , round bottom flask. Packaging: case of 18. Key Documents. COA · COO · View All Documentation. Skip To Made of high quality Borosilicate glass , Long Neck , Rounded Base , 800ml capacity 250ml Kjeldahl Round Bottom Long Neck Lab Glass Fl... – Grandado This Kjeldahl flask is made of high quality Borosilicate glass., Flask stands 13., 5., Base is 3., 5 in diameter., Neck measures 8., 25 long and has a diameter of 1., 2.