Faire correspondre le point de phase a la plage de temperature
Pour 2-8°Expéditions C, +5°C PCM or carefully conditioned gel packs often reduce freezing risk. Pour les voies gelées, -18°C PCM, packs eutectiques, or dry ice may be more appropriate.
Cold Chain Coolant Tool
Table de reference des refrigerants et PCM pour emballage chaine du froid
Compare common refrigerants and phase change materials by phase-change point, chaleur latente, specific heat, 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
Selecteur rapide de refrigerant
Use the table to compare technical ranges, typical lane fit, and handling notes. Values are planning references; exact specifications vary by formulation, taille du paquet, structure du film, and conditioning SOP.
Dernière révision: 18 juin 2026
| Comparer | Liquide de refroidissement / PCM | Phase-change point | Chaleur latente | Specific heat | Expansion on freezing | Préconditionnement | Voies les mieux adaptées | Handling note |
|---|---|---|---|---|---|---|---|---|
|
Water-based flexible gel ice pack Pack de gel réutilisable, pochette souple, water-dominant refrigerant gel. Pack de gel0-10°C |
Around 0°C | 300-334 kJ/kg | Liquid approx. 4.18; frozen approx. 2.03 kJ/kg*K | À propos 8-9%; leave headspace in rigid designs. | Freeze at -18°C or below until fully solid. | Aliments réfrigérés, épicerie, fruit de mer, 0-10°C parcels, buffered 2-8°Voies C. | 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. Brique de glaceRéutilisable |
Around 0°C | 300-334 kJ/kg | Liquid approx. 4.18; frozen approx. 2.03 kJ/kg*K | À propos 8-9%; shell geometry must allow expansion. | Freeze at -18°C ou inférieur; confirm core is fully frozen. | Reusable food distribution, fruit de mer, 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. Gel conditionné2-8°C support |
Around 0°C | 280-330 kJ/kg | Environ. 3.6-4.2 liquide; 1.8-2.4 frozen kJ/kg*K | Typiquement 6-9%, en fonction de la formulation du gel. | Geler, then condition to the validated loading state before packout. | 2-8°C pharma starter layouts, échantillons de laboratoire, freeze-sensitive chilled goods. | Conditioning and separator placement matter more than the material name. Valider avec les données de l'enregistreur. | |
|
+5°C PCM pack PCM temperature positive designed to release cold near the 2-8°C operating band. PCMPharma |
Environ. +5°C | 160-240 kJ/kg | Environ. 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, biologique, vaccins, échantillons de laboratoire, 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 |
Environ. +20 to +25°C | 140-220 kJ/kg | Environ. 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 sous zeroRisque de gel |
Environ. -5°C | 180-280 kJ/kg | Environ. 2.5-4.0 kJ/kg*K | Common planning range 4-10%. | Freeze below -10°C or per formulation requirement. | Fruit de mer, protéine, high thermal-load chilled freight, longer 0-10°Voies C. | Use with caution around vaccines, biologique, 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. PCM congelé≤ -18°C |
Environ. -18°C | 170-260 kJ/kg | Environ. 2.0-3.8 kJ/kg*K | Common planning range 4-12%. | Charge in a -25°C or colder freezer unless supplier specifies otherwise. | Aliments surgelés, fruits de mer gelés, 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. BrineCongelé |
Near -21.1°C eutectic point | Typical pack planning range 160-240 kJ/kg | Environ. 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 ou plus froid. | Frozen support, exportation de fruits de mer, high thermal-load cold packs. | Check corrosion compatibility and leakage control. Do not place directly against freeze-sensitive cargo. | |
|
Glace carbonique pellet or block Solid carbon dioxide coolant that sublimates directly to gas at atmospheric pressure. CO2Vent required |
Sublimes near -78.5°C | À propos 571 kJ/kg sublimation energy | Environ. 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. | Surgelé, dry-ice-compatible pharma, échantillons de laboratoire, glace, frozen air/export lanes. | Air shipments require dry ice marking, poids net, acceptation du transporteur, and dangerous-goods review. | |
|
Glace en bouillie / coulis de glace Fine ice crystals suspended in a carrier fluid for direct chilling or process-side cooling. SlurryFood process |
Souvent -2 to 0°C, depending on solution | Environ. 80-250 kJ/kg by ice fraction | Environ. 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. | Fruit de mer, poisson, produce processing, short direct-contact cooling workflows. | Useful for process cooling, but less common for sealed parcel cold-chain packaging. |
Table des parametres courants des refrigerants et PCM
Tick up to three rows to compare the real trade-offs: temperature fit, cooling density, risque de gel, conditioning effort, and when each option is usually chosen.
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Comparaison des options de refrigerant
Estimate the latent energy available from a selected coolant mass. This is not a thermal qualification result, but it helps compare refrigerant formats quickly.
Capacite latente estimee
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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, température de la charge utile, profil ambiant, placement des paquets, and route time.
Verification de l'energie frigorifique latente
The best coolant is not only the coldest material. Match the phase point to the product temperature band, then check heat capacity, expansion, risque de contact, conditionnement, et contrôles d'itinéraire.
Utiliser la chaleur latente comme comparaison, pas comme garantie
A higher kJ/kg value means more phase-change energy per kilogram, but packout geometry, isolation, masse de charge utile, entrefers, and ambient exposure decide the real hold time.
Prevoir de l'espace pour l'expansion et le degagement de gaz
Water-rich packs expand when frozen. Glace carbonique is different: it sublimates into carbon dioxide gas and must never be sealed in airtight packaging.
Comment les equipes chaine du froid doivent lire le tableau
Use this page to shortlist the refrigerant family, then continue with pack quantity, risque d'itinéraire, dimensionnement, and shipment-readiness checks.
Pour les plages refrigerees
Utiliser le Calculateur de banquise to estimate starting cold-media mass for 2-8°C or 0-10°Expéditions C.
Pour les plages congelees
Utiliser le Calculateur de glace carbonique when dry ice, deep frozen cargo, fret aérien, or export handling is part of the route.
Pour l'incertitude du trajet
Utiliser le Vérificateur de risque d'itinéraire before finalizing packout assumptions for hot ambient, temps de séjourner, ou voies transfrontalières.