Ammonium sulfite (CAS 10196-04-0) stands as a crucial inorganic compound, widely recognized for its diverse applications across various industrial sectors. This chemical, also known as Sulfurous acid diammonium salt, is a versatile substance essential for numerous manufacturing processes and laboratory procedures. Its distinct characteristics make it a preferred choice where a reliable reducing agent or a specific chemical intermediate is required.

Chemically, Ammonium sulfite possesses the molecular formula H8N2O3S and a molecular weight of 116.14. It typically presents as a clean, white powder, signifying its high purity and consistent quality. Rigorous quality control ensures that the Ammonium Sulfite monohydrate content consistently meets or exceeds 90%, with minimal levels of impurities like Ammonium bisulfite, ammonium Bicarbonate, or Ammonium Sulfate, which are kept below 0.5% and 5.0% respectively. This adherence to strict specifications ensures optimal performance in its intended applications.

The utility of Ammonium sulfite spans a wide array of industries. In the paper industry, it is an indispensable component in ammonium-based pulping, playing a vital role in breaking down wood fibers to produce pulp for papermaking. Its efficiency in this process contributes to both the quality of the paper product and the environmental footprint of production. Beyond paper manufacturing, Ammonium sulfite finds significant use in the laboratory setting, where it is frequently employed for the preparation of sulfur dioxide, a gas with its own broad range of industrial applications.

Furthermore, this compound serves as a powerful reducing agent across several critical sectors. It is extensively utilized in the photographic industry for developing and fixing processes, as well as in the broader chemical industry for various reduction reactions. The printing and dyeing industries also benefit from its reducing properties, where it aids in achieving desired color outcomes and processing efficiency. Its versatility extends to its role as a key raw material for the production of hair waving agents, indicating its importance in the cosmetics and personal care sector. Additionally, it functions as a valuable chemical intermediate, contributing to the synthesis of other complex compounds.

In the agricultural domain, Ammonium sulfite is recognized for its potential as a chemical fertilizer. While less common than other nitrogen or sulfur sources, its unique composition can contribute to nutrient supply, especially in specific soil conditions, supporting plant growth and crop yield. This multi-faceted utility underscores its importance in both industrial and agricultural contexts.

For effective use and extended shelf life, Ammonium sulfite requires proper storage conditions. It should be stored in a cool, dry, and well-ventilated area, away from direct light and moisture. Typically, it is packaged in durable 25kg drums, ensuring safe transport and preserving its quality during storage. When considering where to buy Ammonium sulfite, it is crucial to source from a reputable manufacturer or supplier that guarantees product purity and consistency. For competitive price and reliable supply, potential buyers are encouraged to inquire about purchase options directly from established chemical distributors. Understanding the technical specifications and application requirements is key when looking to buy this essential chemical for any industrial or laboratory need.