Specify the temperature profile
Select against the required product-temperature band and duration. Freezing and melting temperatures are separate figures from the circulating-fluid operating range.
Phase-change materials
LM-XL series
Phase-change materials for cold storage
Materials that store and release cooling through liquid-solid phase change, for cold-chain transport, refrigeration, ice-and-snow facilities and thermal-storage systems.
GLACIER / PRODUCT SAMPLE
CATALOGUE TEMPERATURE REFERENCENominal grades −24°C to −2°C
Formulation
Formulated phase-change energy storage materials
A closer look.
- Cold-chain temperature management
- Latent-heat energy storage
- Multiple phase-change grades
Model and property references
- LM-XL-2 latent heat
- 317.4 kJ/kg
- LM-XL-18 phase change
- −18°C freezing / melting
- LM-XL-24 phase change
- −26°C freezing / −24°C melting
- Listed latent heat range
- 298.1–324.9 kJ/kg
LM-XL series catalogue reference values (Table 18)
| Model | Freezing point (°C) | Melting point (°C) | Latent heat (kJ/kg) | Density at 20°C (g/cm³) | Thermal conductivity at 20°C (W/m·K) | Specific heat at 20°C (cal/g·°C) |
|---|---|---|---|---|---|---|
| LM-XL-2 | −2 | −2 | 317.4 | 1.06±0.02 | 0.603 | 0.884 cal/(g·°C) = 3.70 kJ/(kg·K) |
| LM-XL-10 | −11 | −10.5 | 310.7 | 1.11±0.02 | 0.566 | 0.807 cal/(g·°C) = 3.38 kJ/(kg·K) |
| LM-XL-15 | −16 | −15.5 | 317.3 | 1.04±0.02 | 0.567 | 0.870 cal/(g·°C) = 3.64 kJ/(kg·K) |
| LM-XL-18 | −18 | −18 | 307.1 | 1.07±0.02 | 0.559 | 0.844 cal/(g·°C) = 3.53 kJ/(kg·K) |
| LM-XL-21 | −23 | −21.5 | 322.7 | 1.13±0.02 | 0.584 | 0.890 cal/(g·°C) = 3.72 kJ/(kg·K) |
| LM-XL-24 | −26 | −24 | 298.1 | 1.17±0.02 | 0.560 | 0.781 cal/(g·°C) = 3.27 kJ/(kg·K) |
The catalogue prints −3.5°C freezing and −5.5°C melting for LM-XL-5; no other grade shows the freezing point warmer than the melting point. Confirm the definition and test method before specifying.
Reference values from the Chaoyang Guangda LM catalogue — typical figures rather than guaranteed limits. Confirm the exact model and concentration on the current model TDS before specifying.
View source: catalogue p.32 (PDF p.36)Before you specify
Phase-change temperatures are not circulation operating limits. Confirm containment, thermal cycling, transport requirements and contact suitability for the application.
FROM FORMULATION TO APPLICATION
Match the phase change to the cold chain.
LM-XL materials store and release cooling through phase change. The original product references describe applications in refrigerated transport, pharmaceutical distribution and fruit-and-vegetable preservation.
Design the complete storage system
Confirm containment, charging conditions and thermal cycling for the selected grade. Product-storage applications do not imply direct food or pharmaceutical contact approval.
REFERENCED MODELS
LM-XL-2 · LM-XL-5 · LM-XL-10 · LM-XL-15 · LM-XL-18 · LM-XL-21 · LM-XL-24
About these product references
Application notes are adapted from Glacier’s original product information. Unless a table states otherwise, numeric specifications follow the supplied catalogue. For the confirmed specification, obtain the current model-specific TDS and SDS. Links below point to the original source pages, not new technical documents.
Thermal storage
How much phase-change material do I need?
Phase-change material is sized from the energy it must hold, divided by its latent heat. See how the arithmetic runs, and where the usable capacity is lost.
Thermal storage
Choosing a phase-change material for cold-chain temperature control
Learn how to specify cold-chain phase-change materials using temperature targets, freezing and melting behaviour, containment and model-specific evidence.
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