Sodium sulfite 10% is an aqueous solution used in various fields of application. One of these areas is the reduction of oxygen in aqueous systems, such as in the paper and textile industries or in water treatment.

In the chemical industry, sodium sulfite serves as a reducing agent in the synthesis of various compounds and can be used to remove excess chlorine in chlorination reactions.

Another application is in histology, particularly in the preparation of staining solutions such as Schiff's reagent. In this context, sodium sulfite is used as a source of sulfurous acid, which is needed to reduce basic fuchsin and obtain the colorless leucofuchsin. In addition, sodium sulfite helps stabilize the dye solution by preventing oxidation. Thus, the use of sodium sulfite 10% in staining solutions allows effective visualization of aldehydes in tissue samples.

The functionality of sodium sulfite is based on its ability to act as a reducing agent and influence oxidation reactions. The special suitability of sodium sulfite 10% results from its high solubility in water, its chemical stability and the possibility to use it in a wide range of applications and reactions.