posted on 2018-01-04, 16:17authored byJohn A. Forshaw
The basic photographic process involves the use of silver
halide, usually bromide, with a small proportion of iodide in the more
sensitive films. The silver halide is present as a dispersion of
small crystals of diameter 0.1–1.5 μm in a colloidal binder of
gelatin. This suspension of silver halide grains is termed the
photographic emulsion. The gelatin has many important properties, one
being that it suspends the crystals in warm aqueous solution during
grain growth and sets to a jelly on cooling. The emulsion is prepared
by forming and growing the silver halide by double decomposition
between a soluble silver salt and mixed alkali halides. [Continues.]
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Publication date
1990
Notes
A Master's Thesis. Submitted in partial fulfilment of the requirements for the award of Master of Philosophy at Loughborough University.