PROCESSING OF LATENT IMAGE. by: Prof. Susan A. Olavidez. Last Revised: June 2004. THE CONCEPT OF pH. pH is a quantitative method of measuring the degree of acidity or alkalinity of a solution.
Prof. Susan A. Olavidez
Last Revised: June 2004
developing agents + oxygen = oxidized dev. agents + OH- ions
Development process releases bromine ions from silver bromide complexes and hydrogen ions from developing agent
bromine ions + hydrogen ions = hydrobromic acid
Thiosulphate + acid = sulphurization + sulphite ions = soluble complex