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protective colloid

noun, Physical Chemistry
a lyophilic colloid added to a lyophobic sol to lessen its sensitivity to the precipitating effect of an electrolyte.
Origin of protective colloid
1905-10 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for protective colloid
  • The emulsifier is adsorbed by the latex particle and acts as a protective colloid, preventing the particles from flocculating.
  • Gelatin is typically used as a protective colloid for suspension stability purposes.

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