Photographic fixer is a chemical solution used in the photographic development process to remove unexposed silver halide crystals, making the image permanent and light-insensitive. It is a crucial step in both film and paper development, ensuring the stability and longevity of the photographic image.

Photographic Fixer

A chemical solution is a homogeneous mixture composed of two or more substances, where one substance (the solute) is uniformly distributed within another substance (the solvent). Solutions can exist in various phases, including gas, liquid, and solid, and their properties depend on factors like concentration, temperature, and pressure.

Chemical Solution

Photographic development process

Unexposed silver halide crystals

Image permanent

Light-insensitive

Film development is the chemical process of converting the latent image captured on a photographic film into a visible image. This process involves a series of steps including developing, stopping, fixing, and washing to ensure the image is stable and permanent.

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