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protective colloid

noun

, Physical Chemistry.
  1. a lyophilic colloid added to a lyophobic sol to lessen its sensitivity to the precipitating effect of an electrolyte.


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Word History and Origins

Origin of protective colloid1

First recorded in 1905–10
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Example Sentences

Many common chemical reactions, if carried out in very dilute solutions, result in the production of sols, especially if a small amount of some emulsoid is present in the reacting mixture; sols produced in this way are very stable, and the emulsoid which is used in stabilizing the sol is known as a "protective colloid."

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protectiveprotective coloration