Stabilizers for Photographic Silver Halide Emulsions: Progress in Chemistry and Application 53 Als praktisches Handeln in den

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Stabilizers for Photographic Silver Halide Emulsions: Progress in Chemistry and Application 53 Als praktisches Handeln in denStability is one of the most important performances required for silver halide photographic materials. In 1935, Dr. E. 1. Birr introduced the concept of the stabilization ofphotographic emulsions for the first time by inventing a most effective stabilizer, 4 oxo 6 methyl l,3,3a,7 tetraazaindene (TAl). Dr. Birr's monograph Stabilization ofPhotographic Silver Halide Emulsions was published in 1974,and accepted as a reliable reference book by many