Phasenpunkt an die Temperaturspur anpassen
Für 2-8°C-Sendungen, +5°C PCM or carefully conditioned gel packs often reduce freezing risk. Für gefrorene Fahrspuren, -18°C PCM, eutektische Packungen, or dry ice may be more appropriate.
Cold Chain Coolant Tool
Referenztabelle fur Kuhlmittel und PCM in Kuhlkettenverpackungen
Compare common refrigerants and phase change materials by phase-change point, latente Wärme, spezifische Wärme, freezing expansion, preconditioning need, and typical cold-chain use case before you prepare a packout or quotation request.
°C
Phase-change point for lane matching
Phase-change point for lane matching
KJ/kg
Latent heat reference range
Latent heat reference range
%
Freezing expansion planning range
Freezing expansion planning range
Schnellauswahl fur Kuhlmittel
Use the table to compare technical ranges, typical lane fit, and handling notes. Values are planning references; exact specifications vary by formulation, Packungsgröße, Filmstruktur, and conditioning SOP.
Zuletzt überprüft: 18 Jun 2026
| Vergleichen | Kühlmittel / PCM | Phase-change point | Latente Hitze | Specific heat | Expansion on freezing | Vorkonditionierung | Best-fit-Bahnen | Handling note |
|---|---|---|---|---|---|---|---|---|
|
Water-based flexible gel ice pack Wiederverwendbare Gelpackung, weiche Tasche, water-dominant refrigerant gel. Gelpackung0-10°C |
Around 0°C | 300-334 KJ/kg | Liquid approx. 4.18; frozen approx. 2.03 kJ/kg*K | Um 8-9%; leave headspace in rigid designs. | Freeze at -18°C or below until fully solid. | Gekühltes Essen, Lebensmittelgeschäft, Meeresfrüchte, 0-10°C parcels, buffered 2-8°C-Spuren. | Use separator layers for freeze-sensitive payloads. Good low-cost starting point for many chilled packouts. | |
|
Rigid ice brick Hard-shell water or gel-filled brick for repeated handling and longer thermal mass. EissteinWiederverwendbar |
Around 0°C | 300-334 KJ/kg | Liquid approx. 4.18; frozen approx. 2.03 kJ/kg*K | Um 8-9%; shell geometry must allow expansion. | Freeze at -18°C oder niedriger; confirm core is fully frozen. | Reusable food distribution, Meeresfrüchte, EPP box programs, insulated delivery boxes. | Higher durability than soft pouches. Check direct-contact freezing risk and payload loading pattern. | |
|
Conditioned 0°C gel pack Frozen gel pack warmed or conditioned before loading to reduce product freezing risk. Konditioniertes Gel2-8°C support |
Around 0°C | 280-330 KJ/kg | Ca. 3.6-4.2 flüssig; 1.8-2.4 frozen kJ/kg*K | Typischerweise 6-9%, abhängig von der Gelformulierung. | Einfrieren, then condition to the validated loading state before packout. | 2-8°C pharma starter layouts, Laborproben, freeze-sensitive chilled goods. | Conditioning and separator placement matter more than the material name. Validieren Sie mit Logger -Daten. | |
|
+5°C PCM pack PCM fur Plus-Temperaturen designed to release cold near the 2-8°C operating band. PCMPharma |
Ca. +5°C | 160-240 KJ/kg | Ca. 2.0-4.0 kJ/kg*K by formulation | Common planning range 3-8%. | Charge below phase point per supplier SOP; avoid uncontrolled over-freezing for validated lanes. | 2-8°C pharma, Biologika, Impfungen, Laborproben, freeze-sensitive cool-chain payloads. | Often a better starting point than fully frozen gel packs when product freezing is a critical risk. | |
|
+20 to +25°C CRT PCM pack PCM for controlled room temperature shipments where both heat and cold exposure matter. CRT PCM15-25°C |
Ca. +20 to +25°C | 140-220 KJ/kg | Ca. 1.8-3.0 kJ/kg*K | Often below water ice; use supplier expansion data. | Condition within the validated CRT charge window before loading. | 15-25°C controlled room temperature medicines and diagnostics. | Not a chilled or frozen coolant. It buffers ambient excursions around room-temperature limits. | |
|
-5°C PCM or eutectic gel pack Sub-zero coolant for stronger chilled performance where mild freezing risk can be controlled. PCM unter 0 GradEinfriergefahr |
Ca. -5°C | 180-280 KJ/kg | Ca. 2.5-4.0 kJ/kg*K | Common planning range 4-10%. | Freeze below -10°C or per formulation requirement. | Meeresfrüchte, Protein, high thermal-load chilled freight, longer 0-10°C-Spuren. | Use with caution around vaccines, Biologika, leafy produce, and other freeze-sensitive payloads. | |
|
-18°C PCM / frozen eutectic pack Frozen-lane PCM used when the payload must stay near standard frozen distribution temperatures. Gefrorenes PCM≤ -18°C |
Ca. -18°C | 170-260 KJ/kg | Ca. 2.0-3.8 kJ/kg*K | Common planning range 4-12%. | Charge in a -25°C or colder freezer unless supplier specifies otherwise. | Gefrorenes Essen, gefrorene Meeresfrüchte, ice cream support, frozen e-commerce parcels. | For deep frozen or long air/export routes, compare with dry ice and route-risk controls. | |
|
Sodium chloride brine eutectic pack Salt-water eutectic refrigerant. Eutectic point is near -21.1°C at about 23.3 wt% NaCl. BrineGefroren |
Near -21.1°C eutectic point | Typical pack planning range 160-240 KJ/kg | Ca. 2.0-3.8 kJ/kg*K by concentration | Often lower than pure water, but container headspace is still required. | Charge below eutectic point, commonly -25°C oder kälter. | Gefrorene Unterstützung, Export von Meeresfrüchten, high thermal-load cold packs. | Check corrosion compatibility and leakage control. Do not place directly against freeze-sensitive cargo. | |
|
Trockeneis pellet or block Solid carbon dioxide coolant that sublimates directly to gas at atmospheric pressure. CO2Vent required |
Sublimes near -78.5°C | Um 571 kJ/kg sublimation energy | Ca. 0.8-0.9 kJ/kg*K for solid CO2 | Not a liquid-freezing pack; gas release requires vented packaging. | Use dry ice as supplied; store and handle with ventilation and PPE. | Tiefgefroren, dry-ice-compatible pharma, Laborproben, Eiscreme, frozen air/export lanes. | Air shipments require dry ice marking, Nettogewicht, Spediteurakzeptanz, and dangerous-goods review. | |
|
Eisbrei / Eisbrei Fine ice crystals suspended in a carrier fluid for direct chilling or process-side cooling. SlurryFood process |
Oft -2 to 0°C, depending on solution | Ca. 80-250 kJ/kg by ice fraction | Ca. 3.3-4.2 kJ/kg*K by mixture | Depends on ice fraction and storage method. | Generated by slurry ice system; not normally charged as a sealed pack. | Meeresfrüchte, Fisch, produce processing, short direct-contact cooling workflows. | Useful for process cooling, but less common for sealed parcel cold-chain packaging. |
Tabelle gangiger Kuhlmittel- und PCM-Parameter
Tick up to three rows to compare the real trade-offs: temperature fit, cooling density, Frostgefahr, conditioning effort, and when each option is usually chosen.
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Vergleich der Kuhlmitteloptionen
Estimate the latent energy available from a selected coolant mass. This is not a thermal qualification result, but it helps compare refrigerant formats quickly.
Geschatzte latente Kapazitat
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kJ latent energy
kJ latent energy
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Wh equivalent
Wh equivalent
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kJ/kg used
kJ/kg used
Thermal performance also depends on insulation, Nutzlasttemperatur, Umgebungsprofil, Packungsplatzierung, und Streckenzeit.
Prufung der latenten Kuhlenergie
The best coolant is not only the coldest material. Match the phase point to the product temperature band, then check heat capacity, expansion, Kontaktrisiko, Konditionierung, und Routenkontrollen.
Latente Warme als Vergleich nutzen, nicht als Garantie
A higher kJ/kg value means more phase-change energy per kilogram, but packout geometry, Isolierung, Nutzlastmasse, Luftspalte, and ambient exposure decide the real hold time.
Raum fur Expansion und Gasfreisetzung lassen
Water-rich packs expand when frozen. Trockeneis is different: it sublimates into carbon dioxide gas and must never be sealed in airtight packaging.
So lesen Kuhlkettenteams die Tabelle
Use this page to shortlist the refrigerant family, then continue with pack quantity, Routenrisiko, Größe, and shipment-readiness checks.
Fur gekuhlte Strecken
Verwenden Sie das Eisbeutel-Rechner to estimate starting cold-media mass for 2-8°C or 0-10°C-Sendungen.
Fur gefrorene Strecken
Verwenden Sie das Trockeneisrechner when dry ice, deep frozen cargo, Luftfracht, or export handling is part of the route.
Bei Routenunsicherheit
Verwenden Sie das Routenrisiko-Checker before finalizing packout assumptions for hot ambient, Verweilzeit, oder grenzüberschreitende Fahrspuren.