Kjeldhal Digestion Unit in Shillong
A Kjeldahl Digestion Unit is a laboratory apparatus used in the Kjeldahl method of nitrogen estimation, which is widely applied in food, feed, fertilizer, soil, and other chemical industries. The digestion unit facilitates the controlled heating and digestion of samples with concentrated sulfuric acid and catalysts, breaking down organic matter and converting nitrogen present in the sample into ammonium sulfate. This step is essential before the distillation and titration phases of the Kjeldahl process.
The digestion unit typically consists of a heating block or mantle that can hold multiple flasks simultaneously, ensuring uniform heating and efficient sample processing. Many modern units come with exhaust manifolds and fume removal systems to handle acid vapors safely.
Properties of Kjeldahl Digestion Units
- Sample Capacity: Available in different models (commonly 4, 6, 8, or 20 sample positions).
- Heating System: Electric heating block or mantle ensures uniform temperature distribution.
- Temperature Range: Adjustable temperature control, often up to 450–500°C, for efficient digestion.
- Material Construction: Made of acid-resistant materials to withstand corrosive chemicals.
- Exhaust/Fume Removal: Equipped with suction manifolds or fume hoods to remove acid vapors.
- Safety Features: Over-temperature protection, insulated casing, and acid-resistant coating.
- Versatility: Suitable for food, agricultural, environmental, pharmaceutical, and chemical laboratories.
- Ease of Use: Models may include programmable temperature settings, digital displays, and timers.
