Browse Prior Art Database

ORGANIC ROUTE FOR SELENIUM PIGMENTS

IP.com Disclosure Number: IPCOM000023450D
Original Publication Date: 1977-Oct-31
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal

Abstract

One route for the preparation of crystalline selenium is by aqueous precipitation. This disclosure involves the prepar-ation of crystalline selenium by the organic solvents technique Selenium dioxide and selenous acid are known to be selective oxidizing compounds. Selected organic solvents, which illustrate the disclosed process, are cyclohexanone and diethylketone. The process is further illustrated by the following examples: