sodium thiosulphate

Found in Anh - Anh (Wordnet)

Definition Noun : A chemical compound used as a fixing agent in photography : Sodium thiosulphate is a white, crystalline compound that dissolves silver salts, making it essential for fixing photographic images by removing unexposed silver halide from film or paper. Usage Examples Noun : The darkroom technician prepared a solution of sodium thiosulphate to fix the prints. After development, the...