Solubility

Solubility
In general photographic terms is the ease with which a solid will mix homogeneously with water to provide a chemical solution.
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Solubility in water
52 Ã- 10âˆ'6 g/100 g at 50 °C
Structure
Crystal structure ...

PMA
abbreviation for a pigment that has been precipitated with phosphomolybdic acid to give it permanence and insolubility.
PMMA
acroynm for polymethyl methacrylate; acrylic plastic.

You are betting your film against water quality, the solubility of the developer, and your ability to get enough water in and out of a tank.

Due to the very low solubility of silver halides mixing aqueous solutions of silver ions and halide ions will result in the precipitation of silver halide crystals.
e.g.

See also: Photograph, Alkali, Image, Film, Yellow