This article contains a list of cooling bath mixtures.
Table Cooling Agent Organic Solvent or Inorganic Salt T (°C) Notes Reference Dry icep-Xylene +13Dry icep-Dioxane +12Dry iceCyclohexane +6Dry iceBenzene +5Dry iceFormamide +2IceWater 0IceAmmonium chloride −50.3 to 1 ratio of salt to ice.Liquid N2Aniline −6IceSodium thiosulfate pentahydrate −81.1 to 1 ratio of salt to ice.IceCalcium chloride hexahydrate −101 to 2.5 ratio of salt to ice.Liquid N2Ethylene glycol −10.5IceAcetone −101 to 1 ratio of acetone to ice. Liquid N2Cycloheptane −12Dry iceBenzyl alcohol −15Dry iceEthylene glycol −15IceSodium chloride −201 to 3 ratio of salt to ice.Dry iceTetrachloroethylene −22Dry iceCarbon Tetrachloride −22.8Dry ice1,3-Dichlorobenzene −25Dry iceo-Xylene −29Liquid N2Bromobenzene −30Dry icem-Toluidine −32Dry ice3-Heptanone −38IceCalcium chloride hexahydrate −40 to −501 to 0.8 ratio of salt to ice.Dry iceAcetonitrile −41Dry icePyridine −42Dry iceCyclohexanone -46Dry icem-Xylene -47Dry iceDiethyl carbitol -52Dry icen-Octane -56Dry iceDiisopropyl ether -60Dry iceChloroform -61Liquid N2Chloroform -63Dry iceEthanol -72 Note: without the addition of ethylene glycol, temp is -78 °C. Dry iceTrichloroethylene -73Dry iceIsopropyl alcohol -77Liquid N2Butyl acetate -77Dry iceAcetone -78Liquid N2Isoamyl acetate -79Dry iceSulfur dioxide -82Liquid N2Ethyl Acetate -84Liquid N2n-Butanol -89Liquid N2Hexane -94Liquid N2Acetone -94.6Liquid N2Toluene -95.1Liquid N2Methanol -98Liquid N2Cyclohexene -104Liquid N2Isooctane -107Liquid N2Ethyl iodide -109Liquid N2Carbon disulfide -110Liquid N2Butyl bromide -112Liquid N2Diethyl ether -116Liquid N2Ethanol -116Liquid N2Ethyl bromide -119Liquid N2Acetaldehyde -124Liquid N2Methylcyclohexane -126Liquid N2n-Propanol -127Liquid N2n-Pentane -131Liquid N21,5-Hexadiene -141Liquid N2Isopentane -160Liquid N2(none) -196Liquid He(none) -269 References