Chemical maturing of a silver halide emulsion containing a crown ether involves using at least one selenium or tellurium compound without selenium or tellurium hydride bonds

摘要

Chemical maturing of a silver halide emulsion containing a crown ether involves using at least one selenium or tellurium compound without SeH or TeH bonds or that can tautomerize to such a bond, giving better storage stability and sensitivity. Chemical maturing of a silver halide emulsion with at least 85 mol.% AgBr and at least 1 mol.% AgI and containing a crown ether involves using at least one selenium or tellurium compound without SeH or TeH bonds or that can tautomerize to such a bond. AN Independent claim is included for a silver halide emulsion with at least 85 mol.% AgBr and at least 1 mol.% AgI and containing a crown ether that is matured using at least one selenium or tellurium compound without SeH or TeH bonds or that can tautomerize to such a bond.