Ammonium sulfite is used as a preservative in photographic fixers. Ammonium sulfite acts as a reducing agent to preserve sulfites (sodium thiosulfate or ammonium thiosulfate) when developing film photographs. [7]
Ammonium sulfite is also used in brick making. Bricks made with ammonium sulfite are mainly used for lining blast furnaces. [8]
Ammonium sulfite can be included in lubricants used in cold metalworking. Lubricants are designed to reduce friction to reduce heat generation and keep impurities from entering the metal. [8]
Ammonium sulfite is a reducing agent. [9] Thermal decomposition releases sulfur dioxide and nitrogen oxides.
The specific gravity of ammonium sulfite is 1.41.[2] The refractive index of ammonium sulfite is 1.515.
Ammonium sulfite is a colorless crystalline solid. The main hazard is a threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used in the manufacture of other chemicals, medicine and photography.
Ammonium sulfite monohydrate is a compound that has been shown to be photocatalytically active. It has also been found to be soluble in sodium salts and chlorides. Ammonium sulfite monohydrate is activated by light and reacts with organic substances in the environment, such as fatty alcohols, which causes particles to protrude from the surface. The protrusion process continues until the particles are completely covered with coating material. The coating process can be used to detect human urine and other organic substances in water samples.
Ammonium sulfite monohydrate is used in the food industry for caramel coloring. It is also used as a hair straightening and curling agent in cosmetics. It acts as a reducing agent in photography. In addition, it is used to produce bricks for lining blast furnaces. Besides that, it is also used in gas scrubbers.
