cryoscopy

American  

[krahy-os-kuh-pee] / kraɪˈɒs kə pi /

noun

plural

cryoscopies

1. Chemistry. a technique for determining the molecular weight of a substance by dissolving it and measuring the freezing point of the solution.

2. Medicine/Medical. the determination of the freezing points of certain bodily fluids, as urine, for diagnosis.

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cryoscopy British  

/ kraɪˈɒskəpɪ, ˌkraɪəˈskɒpɪk /

noun

1. the determination of freezing points, esp for the determination of molecular weights by measuring the lowering of the freezing point of a solvent when a known quantity of solute is added

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Other Word Forms

• cryoscopic adjective

Etymology

Origin of cryoscopy

First recorded in 1895–1900; cryo- + -scopy

Example Sentences

One gramme-molecule of the solute introduced into one litre of the solution lowers its temperature of congelation by 1.85� C. Thus a normal solution of any non-ionizable substance in water freezes at -1.85� C. The measurement of this lowering of the freezing point is called Cryoscopy, a method which is becoming of great utility in medicine.

From Project Gutenberg

Cryoscopy of Blood.—In order to determine the osmotic pressure of the blood at 37� C., i.e.

From Project Gutenberg

Cryoscopy.—The usual method employed for the determination of the molecular concentration and osmotic pressure of a solution is by cryoscopy—the measurement of its temperature of congelation.

From Project Gutenberg

Cryoscopy is the method most used in biological research to determine molecular concentration.

From Project Gutenberg

Organic liquids are easily altered and are extremely sensible to minute differences of temperature, cryoscopy therefore gives us no information as to the constitution of solutions under normal conditions.

From Project Gutenberg