peptizev.
/ˈpɛptʌɪz/, U.S. /ˈpɛpˌtaɪz/ Chemistry.
transitive. To convert (a solid or semi-solid colloid) into a sol by chemical means.
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the world > matter > chemistry > chemical reactions or processes > subject to chemical reactions or processes [verb (transitive)] > subject to named chemical reaction or process > subject to peptization
peptize1864
1864 T. Graham in Proc. Royal Soc. 13 340 The pure jellies of alumina, peroxide of iron, and titanic acid..are assimilated more closely to albumen, being peptized by minute quantities of hydrochloric acid.
1934 H. N. Holmes Introd. Colloid Chem. iii. 26 Glue, gelatin, soap, gum arabic, and dextrin are said to be soluble in water. In reality they are merely peptized by water—they are subdivided into particles far larger than molecules.
1972 T. Moeller & R. O'Connor Ions in Aqueous Syst. v. 116 Freshly prepared and washed precipitates can be peptized in many cases by adding water and a little of the original precipitating reagent.
2002 Househ. & Personal Products Industry (Nexis) 1 Feb. 71 Clay may be peptized by alkalis, the OH- ion being the active agent.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).
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