Photographers' Formulary 100g Ammonium Sulfate Photographic Hardener

Key Features

• Achieve superior image quality with Photographers' Formulary Ammonium Sulfate.
• Use as a photographic hardener to increase archival properties of your prints.
• Fine white Ammonium Sulfate granules ensure easy mixing for consistent results.
• Extend the shelf life of your black and white chemicals with this hardener.
• Get exceptional tonal range in your prints when using Ammonium Sulfate.
• Substitute for alum; use 2 parts aluminum sulfate for 3 parts alum easily.