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Inhibition of Heterogeneous Nucleation

IP.com Disclosure Number: IPCOM000061915D
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Junginger, R: AUTHOR [+2]

Abstract

Nucleation of sparingly soluble salts in aqueous solutions can be inhibited by the addition of surface active agents which reduce (rather than increase) the mean interfacial tension. Specifically, the presence of parts-per-million quantities of an anionic surfactant of the phosphonated polyoxyethylenated alkylphenol family has been found to substantially reduce the heterogeneous nucleation of certain sparingly soluble salts (e.g. cupric hydroxide).

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Inhibition of Heterogeneous Nucleation

Nucleation of sparingly soluble salts in aqueous solutions can be inhibited by the addition of surface active agents which reduce (rather than increase) the mean interfacial tension. Specifically, the presence of parts-per-million quantities of an anionic surfactant of the phosphonated polyoxyethylenated alkylphenol family has been found to substantially reduce the heterogeneous nucleation of certain sparingly soluble salts (e.g. cupric hydroxide).

Anonymous.

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