Ammonium Sulfite
Item specifics
- Chemical information
- (NH₄)₂SO₃
- CAS number
- 10196-04-0
- Physical form
- Colorless Monoclinic Crystals
- Concentration/Content
- Premium Grade: ≥90.0% Standard Grade: ≥85.0%
- Packaging information
- 25kg/bag and 40kg/bag
Review
Description
As a cornerstone of our sulfite product portfolio, our Industrial-Grade Ammonium Sulfite Crystals deliver exceptional versatility and reliability. This inorganic compound serves as a critical raw material and processing aid across the papermaking, water treatment, flue gas desulfurization (FGD), and food industries. Produced in our state-of-the-art facility with an annual capacity of 200,000+ tons, we guarantee consistent quality, short lead times, and a stable supply to keep your operations running smoothly.
Proven Multi-Functionality: Excels as a pulping aid, dechlorinator, desulfurization/denitrification agent, and food processing catalyst, offering multiple benefits from a single product.
Rigorous Quality Assurance: Manufactured under ISO 9001 and strictly compliant with the Chinese industrial standard HG/T 2784-2023, ensuring every batch meets precise specifications.
Dual-Grade Options: Available in both Premium Grade (≥90.0%) and Standard Grade (≥85.0%) to suit your specific technical and budgetary requirements.
Sustainable Solution: Its application, especially in papermaking, supports a circular economy as the waste liquor can be repurposed as agricultural fertilizer.
Product Core Parameters
Item | Specification |
Specification | (NH₄)₂SO₃ |
CAS No. | 10196-04-0 |
Appearance | Colorless Monoclinic Crystals |
Specification (Ammonium Sulfite Monohydrate) | Premium Grade: ≥90.0%
Standard Grade: ≥85.0% |
Executive Standard | HG/T 2784-2023 (Industrial Ammonium Sulfite) |
Package | 25kg/bag and 40kg/bag |
Application areas | Papermaking，Water Treatment，Flue Gas Treatment，Food Industry，Environmental |
Main functions | Pulping Aid ，Dechlorinator，Desulfurization & Denitrification Agent， Catalyst, Reactant，Aldehyde Scavenger |
Storage conditions | In a cool, dry, and well-ventilated place, and contact with acidic substances must be avoided. |
Environmental protection features | Rapidly reduces residual chlorine (Cl₂, HOCl) to harmless chloride ions (Cl⁻), protecting downstream equipment and ensuring water safety. |
What are the key differences between your Premium and Standard grades of Ammonium Sulfite?
The primary difference is the assay of Ammonium Sulfite Monohydrate. Our Premium Grade guarantees a minimum of 90.0% purity, while the Standard Grade offers a cost-effective option at ≥85.0% purity. This allows you to choose the best fit for your specific process requirements.
How does Ammonium Sulfite function in flue gas treatment?
It acts as a dual-purpose agent. First, its solution absorbs sulfur dioxide (SO₂) from the flue gas. Second, it chemically reduces nitrogen oxides (NOx), converting them into harmless nitrogen gas (N₂) and useful ammonium sulfate, which can be sold as fertilizer, adding economic value.
Can you supply Ammonium Sulfite for food applications like caramel color production?
Yes. We can provide grades suitable for use as a catalyst and reactant in the production of E150d caramel color, helping to reduce energy consumption and improve production efficiency. Please contact our sales team to discuss your specific food-grade requirements.