Description
The MEDILAB Macro Kjeldahl Distillation Assembly is a precision-engineered apparatus designed for high-volume nitrogen determination using the classical Kjeldahl method. Ideal for laboratories requiring larger sample capacities, it ensures efficient distillation with exceptional chemical and thermal resistance. This assembly delivers dependable performance for routine analysis in food testing, chemical manufacturing, pharmaceuticals, and environmental laboratories, where accurate nitrogen quantification is essential.
Key Features
- Manufactured from durable Borosilicate Glass 3.3 for superior thermal and chemical resilience
- Designed specifically for macro-scale Kjeldahl distillations (higher sample load)
- Smooth, uniform glass finish enhances visibility and prevents sample adherence
- Precision-ground joints for leak-proof, secure connections
- Robust Liebig condenser for efficient vapour condensation
- Vertical splash head minimises carry-over and increases analytical accuracy
- High-quality dropping funnel with plug for controlled reagent addition
- Long service life, repeat-use durability, and compatibility with standard macro Kjeldahl systems
Material Specifications
Material: Borosilicate Glass 3.3 (high-purity laboratory grade)
Thermal Properties:
- High resistance to thermal shock
- Low thermal expansion (≈3.3 × 10⁻⁶ /°C)
- Suitable for continuous heating cycles
Chemical Properties:
- Exceptional resistance to acids, alkalis, ammonia solutions, and digestion chemicals
- Non-reactive, ensuring no contamination of analytical samples
Mechanical Properties:
- Stress-relieved construction
- High mechanical stability and long-term durability
Standards Compliance: Manufactured conforming to ISO, DIN, and ASTM laboratory glassware standards
Technical Specifications
Includes the following components:
- Macro Kjeldahl Flask – 500 mL
- Multiple Adapters- (parallel/angled configuration depending on design)
- Vertical Splash Head
- Dropping Funnel with Plug – for controlled reagent dosing
- Liebig Condenser – standard-length, high-efficiency design
- Delivery Adapter – optimised for smooth distillate flow
General Details:
- Joint sizes: Standard interchangeable ground joints (19/26, 24/29, or as specified)
- Condenser length: Typically 200–300 mm, depending on model
- Packaging: Individually foam-lined, export-grade corrugated cartons
- Custom joint sizes, flask capacities, and component sets available on request
- All components are precision-crafted for compatibility and seamless assembly
Handling & Precautions
- Always inspect joints and glass surfaces before use for signs of stress or micro-cracks
- Allow gradual heating—avoid sudden temperature changes to prevent thermal shock
- Clean using mild laboratory detergents; avoid abrasive brushes
- Suitable for autoclaving (max 121°C); ensure all joints are clean and dry before autoclaving
- Do not expose empty glassware to direct flame
- Avoid applying excessive mechanical force when assembling joints
- Store in padded glassware racks to avoid accidental impact
- For optimal lifespan, handle with nitrile gloves to maintain grip and prevent slipping
Applications
Perfect for laboratories requiring macro-scale nitrogen analysis, including:
- Food & Agriculture: Protein estimation in milk, cereals, grains, meat, fertilisers
- Pharmaceutical QC/QA: Nitrogen content in formulations and raw materials
- Chemical & Fertiliser Industry: Ammonia and total nitrogen analysis
- Environmental & Water Testing Labs: Analysis of wastewater, soil, and sludges
- Research Institutes & Universities: Advanced analytical chemistry training and research
The assembly plays a critical role in routine and regulatory nitrogen determination, supporting accurate, reproducible, and compliant analytical workflows.
Why Choose MEDILAB
- 35+ years of manufacturing expertise in scientific and analytical glassware
- Trusted by laboratories and distributors in 40+ countries
- Precision-engineered, export-quality products with consistent performance
- OEM / Private Labelling available for global brands
- Strict quality checks and dimensional accuracy across every component
- Strong, secure, international packaging for safe global transport
- Reliable delivery schedules and robust customer support
