Flask, Kjeldahl

Flask Kjeldahl, long neck

Kjeldahl Flasks are round bottom flasks with long necks, commonly used in determination of nitrogen by Kjeldahl method.

Can be availabled with or without tooled neck.

Description

Catalog No. Capacity ml Body Dia. Neck Dia. Height mm
11008/1 50 51 34 90
11008/2 100 64 34 105
11008/3 250 85 50 138
11008/4 500 105 50 163
11008/5 1000 131 50 190
11008/6 2000 166 76 230

A Kjeldahl flask is a type of laboratory flask used in the Kjeldahl method for determining the nitrogen content in organic compounds. The Kjeldahl method is a widely used procedure for analyzing the nitrogen content of food, feed, and other organic substances.

The Kjeldahl flask is typically made of borosilicate glass and has a cylindrical shape with a flat bottom, a narrow neck, and a spherical or bulbous distension near the top of the neck. The distension is designed to hold a boiling stone, which provides a surface for the organic material to be decomposed and facilitates the release of nitrogen gas.

The flask is designed to be used with a condenser, which helps to cool and condense the gases produced during the reaction. The Kjeldahl flask is an essential component of the Kjeldahl method and is used to perform the crucial steps of digestion and distillation of the sample.