Entry from British & World English dictionary
A mixture of two or more substances (e.g. ice water and salt, or dry ice and alcohol) which can be used to produce temperatures below the freezing point of water.
- In the 18th century, Richard Watson and Charles Blagden independently discovered a linear relationship between concentration and minimum temperature for several freezing mixtures.
- Ice can be used in freezing mixtures to produce temperatures well below the normal melting point of ice.
- Ammonium nitrate is used today in laughing gases, freezing mixtures, explosives and fertilizers.
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