Abstract

A dissolution system called photosolubilization invented in 1964 by R.K. Blake and applied to silver halide was investigated to determine the feasibility of adapting the system from silver to copper. After cuprous bromide was shown to be light sensitive and able to be insolubilized, using a mercaptan ( 2-mercapto-4-phenylthiazole ), many of the parameters affecting this process were determined. The best photosolubilization was achieved using a 1/100 mole ratio of mercaptan to cuprous bromide. Insolubilization improved with increased mercaptan digestion time while pH appeared to have little effect on this mechanism. PH did change final print-out density. Increased sensitivity was observed when the emulsion was re-exposed while still wet. Fixing or dissolution depends on several factors including emulsion thickness.

Library of Congress Subject Headings

Photography--Processing

Publication Date

1975

Document Type

Thesis

Department, Program, or Center

School of Photographic Arts and Sciences (CIAS)

Advisor

Carroll, B.

Advisor/Committee Member

Francis, R.

Comments

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: TR433.F74

Campus

RIT – Main Campus

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