Preparation and Characterization of Uniform Colloidal PigmentsFootnote¹
Supported by the NSF Grant CHE-9423163

Egon Matijević Center for Advanced Materials Processing, Clarkson University, Box 5814, Potsdam, NY, 13699-5814View further author information

Guangwei Wu Center for Advanced Materials Processing, Clarkson University, Box 5814, Potsdam, NY, 13699-5814

ABSTRACT

Uniform colloidal pigment dispersions of narrow size distribution were obtained by interacting aqueous solutions of D&C Red #6 dye and BaCl2. The original particles were elongated in shape but the anisometry could be altered by input of ultrasonic energy. The addition of an anionic surfactant caused a decrease of the average pigment size to ∼ 40 nm. The so prepared colored dispersions showed 100% transparency, which is considerable higher than the commercial Ba lake of the same dye.

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Supported by the NSF Grant CHE-9423163

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Egon Matijević

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Preparation and Characterization of Uniform Colloidal PigmentsFootnote¹
Supported by the NSF Grant CHE-9423163

Notes on contributors

Egon Matijević

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Preparation and Characterization of Uniform Colloidal PigmentsFootnote1Supported by the NSF Grant CHE-9423163

ABSTRACT

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Notes on contributors

Egon Matijević

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Preparation and Characterization of Uniform Colloidal PigmentsFootnote¹
Supported by the NSF Grant CHE-9423163