Cooling agents 3.11.3



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Composition	θ/°C	Composition	θ/°C
Crushed ice 2 parts, sodium chloride 1 part	−18	Liquid oxygen	−183
Crushed ice 3 parts, cryst. calcium chloride 4 parts	−48	Liquid nitrogen	−196
Solid CO₂ added to equal parts CCl₄ and CHCl₃	−80	Liquid helium	−269

Ethylene glycol-water antifreeze

The values listed are ρ (kg m⁻³) and freezing temperature θ(°C) and % is the number of g of ethylene glycol in 100 g of solution.

E.F.G. Herington




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