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Patent Granted Slurry ice is a phase changing refrigerant made up of millions of ice “micro-crystals” (typically 0.1 to 1 mm in diameter) formed and suspended within a solution of water and a freezing point depressant. Some compounds used in the field are salt (sodium chloride), ethylene glycol, propylene glycol, various alcohols (Isobutyl, ethanol) and sugar (sucrose, glucose). Slurry Ice has greater heat absorption compared with single phase refrigerants (Brine) because the melting enthalpy (latent heat) of the ice is also used.
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