What is silver salt?

Silver salt is the general name of all salts whose cation is silver ion. Such as silver halide, silver nitrate, silver sulfate, etc. Silver chloride is insoluble in water, and the higher the molecular weight of silver salt, the lower the solubility; Sensitive to purple areas with short wavelength and ultraviolet rays; Silver bromide is sensitive to light in the blue region; The function of silver iodide is to increase the photosensitive range. If the mixed emulsion of silver iodide and silver bromide is added, the photosensitive range reaches 500 nm.

major function

1, photosensitive material for general photography. There are mainly black and white and color films, film and photographic paper, which are used to shoot outdoor and indoor scenes and portraits.

2. Silver halide holographic materials. Using the photosensitivity of silver halide, the interference fringes formed by laser coherence are recorded, and then the three-dimensional holographic image of the object can be displayed under white light after development and fixing. It has high exposure sensitivity and wide spectral response, and is suitable for different laser wavelengths. The formed holographic image has large depth of field, wide viewing angle and good moisture resistance.

Refer to the above? Baidu encyclopedia-silver halide

Refer to the above? Baidu encyclopedia-silver salt