PHOTOCHEM Potassium Metabisulphite per 250gm (05527-0250)

Potassium Metabisulphite (chemical formula: K₂S₂O₅) is a white, crystalline powder with a sharp sulfur smell. It acts as a preservative, antioxidant, and sterilizing agent in various industries, including food, wine-making, and photography.

In photography, potassium metabisulphite is primarily used as a stabilizer and preservative in photographic solutions, especially in fixers and developing baths. Its role is to prevent the oxidation of developing agents, helping maintain their effectiveness over time. It’s also used in hypo clearing agents, which help remove residual fixer from photographic prints and films, speeding up the washing process and improving archival quality.

This chemical is especially valued in darkroom work, where maintaining the stability and longevity of chemical baths is essential for consistent image quality.

No specifications for this product.

No accessories for this product.