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Review Summary
Diammonium sulfate
Sulfuric acid
Diammonium salt
Actamaster
Dolamin
Mascagnite
Fine white granules or crystals
Slight odor of ammonia
Can be used as a substitute for alum as a hardener (ratio = 2 parts aluminum sulfate as a substitute for 3 parts alum)
(NH4)2SO4
100g (3.53oz)
From the renowned brand Photographers' Formulary comes the professional-grade 100g Ammonium Sulfate Photographic Hardener. This high-quality product is specifically designed to cater to the unique needs of photographers, offering an effective and versatile solution for hardening photographic paper.
Unlike ordinary hardeners, this innovative Ammonium Sulfate formulation serves as an excellent substitute for alum, ensuring superior results in your photography projects. Its stability under ordinary conditions of use and storage makes it a reliable choice for both amateur and professional photographers.
Whether you're working in a professional studio or a home darkroom, the Photographers' Formulary Ammonium Sulfate Photographic Hardener is an essential tool for achieving the best possible results in your photographic endeavors. Experience the difference that a specially formulated photographic hardener can make in the quality and longevity of your prints.