It is disclosed to inhibit homopolymerization of a bis(vinylsulfonyl)alkane hardener for a hydrophilic colloid useful in forming a layer of a photographic element by associating with the hardener a nitro-substituted aromatic compound.
通过与一种含硝基芳香化合物结合,抑制双(
乙烯基磺酰基)烷硬化剂的同聚反应,以制备用于形成摄影元素层的亲
水性胶体。