Cold Chain Coolant Tool

Tabla de referencia de refrigerantes y PCM para embalaje de cadena de frio

Compare common refrigerants and phase change materials by phase-change point, calor latente, specific heat, freezing expansion, preconditioning need, and typical cold-chain use case before you prepare a packout or quotation request.

°do
Phase-change point for lane matching
kJ/kg
Latent heat reference range
%
Freezing expansion planning range

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Selector rapido de refrigerante

Use the table to compare technical ranges, typical lane fit, and handling notes. Values are planning references; exact specifications vary by formulation, tamaño del paquete, estructura de la película, and conditioning SOP.

Última revisión: 18 Jun 2026






Common coolant and PCM planning values for cold-chain packaging comparison.
Comparar refrigerante / PCM Phase-change point Calor latente Specific heat Expansion on freezing Preacondicionamiento Carriles mejor adaptados Handling note
Water-based flexible gel ice pack
Paquete de gel reutilizable, bolsa suave, water-dominant refrigerant gel.
Paquete de gel0-10°do 		Around 0°do 300-334 kJ/kg Liquid approx. 4.18; frozen approx. 2.03 kJ/kg*K Acerca de 8-9%; leave headspace in rigid designs. Freeze at -18°C or below until fully solid. Comida fría, tienda de comestibles, mariscos, 0-10°C parcels, buffered 2-8°carriles 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.
ladrillo de hieloReutilizable 		Around 0°do 300-334 kJ/kg Liquid approx. 4.18; frozen approx. 2.03 kJ/kg*K Acerca de 8-9%; shell geometry must allow expansion. Freeze at -18°C or below; confirm core is fully frozen. Reusable food distribution, mariscos, 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.
Conditioned gel2-8°C support 		Around 0°do 280-330 kJ/kg Aproximadamente. 3.6-4.2 líquido; 1.8-2.4 frozen kJ/kg*K Típicamente 6-9%, dependiendo de la formulación del gel. Congelar, then condition to the validated loading state before packout. 2-8°C pharma starter layouts, muestras de laboratorio, freeze-sensitive chilled goods. Conditioning and separator placement matter more than the material name. Validar con datos del registrador.
+5°C PCM pack
PCM de temperatura positiva designed to release cold near the 2-8°C operating band.
PCMFarmacéutico 		Aproximadamente. +5°do 160-240 kJ/kg Aproximadamente. 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, biológicos, vacunas, muestras de laboratorio, 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°do 		Aproximadamente. +20 to +25°do 140-220 kJ/kg Aproximadamente. 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 bajo ceroRiesgo de congelación 		Aproximadamente. -5°do 180-280 kJ/kg Aproximadamente. 2.5-4.0 kJ/kg*K Common planning range 4-10%. Freeze below -10°C or per formulation requirement. Mariscos, proteína, high thermal-load chilled freight, longer 0-10°carriles C. Use with caution around vaccines, biológicos, 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 congelado≤ -18°do 		Aproximadamente. -18°do 170-260 kJ/kg Aproximadamente. 2.0-3.8 kJ/kg*K Common planning range 4-12%. Charge in a -25°C or colder freezer unless supplier specifies otherwise. comida congelada, mariscos congelados, 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.
BrineCongelado 		Near -21.1°C eutectic point Typical pack planning range 160-240 kJ/kg Aproximadamente. 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 or colder. Soporte congelado, exportación de mariscos, high thermal-load cold packs. Check corrosion compatibility and leakage control. Do not place directly against freeze-sensitive cargo.
Hielo seco pellet or block
Solid carbon dioxide coolant that sublimates directly to gas at atmospheric pressure.
CO2Vent required 		Sublimes near -78.5°do Acerca de 571 kJ/kg sublimation energy Aproximadamente. 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. ultracongelado, dry-ice-compatible pharma, muestras de laboratorio, helado, frozen air/export lanes. Air shipments require dry ice marking, peso neto, aceptación del transportista, and dangerous-goods review.
hielo en suspensión / lechada de hielo
Fine ice crystals suspended in a carrier fluid for direct chilling or process-side cooling.
SlurryFood process 		A menudo -2 to 0°do, depending on solution Aproximadamente. 80-250 kJ/kg by ice fraction Aproximadamente. 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. Mariscos, pez, produce processing, short direct-contact cooling workflows. Useful for process cooling, but less common for sealed parcel cold-chain packaging.

Tabla de parametros comunes de refrigerantes y PCM

Tick up to three rows to compare the real trade-offs: temperature fit, cooling density, riesgo de congelación, conditioning effort, and when each option is usually chosen.

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Comparacion de opciones de refrigerante

Estimate the latent energy available from a selected coolant mass. This is not a thermal qualification result, but it helps compare refrigerant formats quickly.



Capacidad latente estimada

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kJ latent energy
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Wh equivalent
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kJ/kg used

Thermal performance also depends on insulation, temperatura de carga útil, perfil ambiental, colocación del paquete, y tiempo de ruta.

Comprobacion de energia frigorifica latente

The best coolant is not only the coldest material. Match the phase point to the product temperature band, then check heat capacity, expansion, riesgo de contacto, acondicionamiento, y controles de ruta.

Ajuste el punto de fase a la franja de temperatura

Para 2-8°envíos C, +5°C PCM or carefully conditioned gel packs often reduce freezing risk. Para carriles congelados, -18°C PCM, paquetes eutécticos, or dry ice may be more appropriate.

Use el calor latente como comparacion, no como garantia

A higher kJ/kg value means more phase-change energy per kilogram, but packout geometry, aislamiento, masa de carga útil, espacios de aire, and ambient exposure decide the real hold time.

Deje espacio para expansion y liberacion de gas

Water-rich packs expand when frozen. Hielo seco is different: it sublimates into carbon dioxide gas and must never be sealed in airtight packaging.

Como deben leer la tabla los equipos de cadena de frio

Use this page to shortlist the refrigerant family, then continue with pack quantity, riesgo de ruta, apresto, and shipment-readiness checks.

Para rutas congeladas

Usar el Calculadora de hielo seco when dry ice, deep frozen cargo, carga aérea, or export handling is part of the route.

Para incertidumbre de ruta

Usar el Comprobador de riesgos de ruta before finalizing packout assumptions for hot ambient, tiempo de permanencia, o carriles transfronterizos.

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