New LN₂-Cooled Differential Scanning Calorimeter (DSC) – Wide Sub-Ambient Range for Advanced Thermal Analysis
We are pleased to announce the launch of our new Liquid Nitrogen Cooled Differential Scanning Calorimeter (LN₂-Cooled DSC) , designed for precise thermal characterization of materials at sub-ambient temperatures. This system extends the capabilities of our DSC product line down to -150°C, enabling researchers and quality control laboratories to study glass transitions, crystallization, melting, and other thermal events that occur below room temperature.
Why LN₂-Cooled DSC?
Many critical materials – including polymers, elastomers, pharmaceuticals, and food products – exhibit important thermal transitions below 0°C. Standard DSC systems with mechanical cooling often cannot reach temperatures below -70°C or -90°C, or they suffer from slow cooling rates and unstable baselines. Our LN₂-cooled DSC overcomes these limitations, providing:
Wide temperature range – From -150°C to 725°C (higher options available)
Rapid cooling – Liquid nitrogen allows fast thermal cycling and higher throughput
Stable sub-ambient baseline – Excellent reproducibility for low-temperature transitions
High sensitivity – Detect weak thermal events with confidence
Complete System Package
As shown in the accompanying image, our LN₂-cooled DSC is supplied as a complete package, including:
| Component | Description |
|---|---|
| DSC Main Unit | High-precision furnace with platinum sensor, purge gas system, and furnace cover |
| LN₂ Cooling Controller | Automatic solenoid valve control (or manual control option) with LN₂ dewar connection |
| Crucibles | Aluminum and platinum crucibles (various sizes, with lids) for different sample types |
| Accessories | Tweezers, crucible press, reference material, software, and communication cables |
Key Specifications:
| Parameter | Specification |
|---|---|
| Temperature Range | -150°C to 600°C (extended to 725°C optional) |
| Cooling Medium | Liquid Nitrogen (LN₂) |
| Cooling Rate | Up to 100°C/min (dependent on temperature range) |
| Heating Rate | 0.1°C/min to 100°C/min |
| Temperature Accuracy | ±0.1°C |
| Temperature Precision | ±0.05°C |
| DSC Baseline Noise | ≤0.01 mW |
| DSC Baseline Repeatability | ≤0.05 mW |
| Enthalpy Accuracy | ≤1% (based on standard material indium) |
| Sensor | Platinum resistance – high sensitivity, corrosion-resistant |
| Atmosphere | Static or dynamic – air, inert gas (N₂, Ar), vacuum (optional) |
| Software | Windows-based with comprehensive thermal analysis functions |
LN₂ Cooling Controller Details:
Our LN₂ cooling system includes a solenoid valve controller that regulates liquid nitrogen flow into the DSC furnace. Key features:
Automatic mode – Software-controlled cooling ramp for reproducible experiments
Manual mode – Simple on/off control for rapid quenching (optional)
Safety features – Over-temperature protection, pressure relief, and gas exhaust
Compatible Dewar – Standard 10L–50L LN₂ tanks (customer supplied or optional)
Crucible Options Included:
| Crucible Type | Material | Volume | Application |
|---|---|---|---|
| Standard | Aluminum | 40 µL | Polymers, organics, general use |
| High-pressure | Aluminum | 30 µL | Volatile samples, sealed |
| Platinum | Pt/Rh | 40–80 µL | High-temperature, corrosive samples |
| Ceramic | Al₂O₃ | 80 µL | Inorganics, high-temperature melts |
Key Applications:
1. Polymer and Plastics Industry
Glass transition temperature (Tg) below 0°C – critical for elastomers, rubbers, and impact-modified plastics
Crystallization and melting of semi-crystalline polymers
Thermal stability and decomposition
Curing of thermosets and adhesives
Polymer blends and compatibility studies
2. Pharmaceutical Industry
Polymorphism – detection of different crystal forms
Purity analysis – melting point depression method
Amorphous content and glass transition of excipients
Lyophilization (freeze-drying) studies
Protein stability and denaturation
3. Elastomers and Rubber
Low-temperature flexibility – Tg determines rubber performance in cold environments
Curing kinetics of rubber compounds
Fillers and additive effects on thermal behavior
4. Food Science
Fat crystallization and melting profiles
Starch gelatinization and retrogradation
Protein denaturation in meat, dairy, and plant proteins
Chocolate tempering – polymorphic transitions of cocoa butter
5. Battery and Energy Materials
Electrolyte phase transitions at low temperatures
Separator thermal stability
Phase Change Materials (PCM) for thermal energy storage
Solid-state electrolytes
6. Research and Education
Fundamental thermal analysis training
Material characterization for new compound development
Quality control of raw materials and finished products
Software Features:
Our DSC software provides comprehensive thermal analysis capabilities:
Real-time data acquisition and display
Automatic peak detection (onset, peak, endset)
Enthalpy calculation (integration)
Glass transition analysis (inflection point)
Melting point and crystallization analysis
Purity analysis (based on melting point depression)
Curing kinetics (isothermal and dynamic)
Data export (Excel, CSV, text)
Report generation
Multi-curve overlay for comparison
Optional 21 CFR Part 11 compliant module for regulated industries
Comparison – LN₂ Cooling vs. Mechanical Cooling:
| Feature | LN₂-Cooled DSC | Mechanical Cooling DSC |
|---|---|---|
| Minimum Temperature | -150°C | -70°C to -90°C typical |
| Cooling Rate | Fast (up to 100°C/min) | Moderate (10–30°C/min) |
| Operating Cost | LN₂ consumption | Electricity only |
| Continuous Run Time | Limited by LN₂ tank size | Unlimited |
| Best For | Very low temperature studies, rapid quenching | Routine sub-ambient testing, unlimited runtime |
| Sample Types |
Next：No 
Follow Us 
Copyright © Shanghai Yuke Industrial Co., Ltd. All Rights Reserved. 
|
