Refrigerant

Aqueous salt solutions (100 g H 2 O + x g salt)

Salt x t in ° C Salt x t in ° C
CH3COONa * H2O 85 -4.7 NH4Cl 30 -5.0
NaNO3 75 -5.3 Na2S23
* 5 H2O.
110 -8.0
KCl 25 -12.0 NH4Cl + NaNO3 30 + 30 -12.0
CaCl2 * 6H2O 250 -12.5 NH4NO3 100 -14.0
NaNO2 60 -17.0 NH4SCN 130 -18.0
NH4Cl + NaNO3 100 + 100 -20.0 KSCN 200 -24.0

Ice-salt mixtures (100g Ice + xg salt)

Salt x t in ° C Salt x t in ° C
CaCl2 * 6H2O 43 -9.0 KCl 33 -11.0
NH4Cl 25 -15.0 NH4NO3 67 -17.0
NaNO3 59 -18.0 (NH4)2SO4 62 -19.0
NaCl 33 -20.0 CaCl2 * 6H2O 82 -22.0
MgCl2 * 6H2O 67 -27.0 KCl 100 -30.0
CaCl2 * 6H 2 O 122 -40.0 CaCl2 * 6H2O 160 -55.0

Dry ice mixtures

Liquid t in ° C
Methanol -71
Ethanol (87.5%) -53
Ethanol (85.5%) -68
Ethanol absolute -72
Diethyl ether -75
Chloroform -77
Acetone -86

Liquid gases

Gas t in ° C
Air -185
Nitrogen -195
Hydrogen -252

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