Sulfamic Acid
- CAS Number: 5329-14-6
- Chemical Formula: H3NSO3
- MOQ: 1000KG
- Shelf Life: 2 years
- Forms: Crystal
- Synonyms: Amidosulfonic Acid, Amidosulfuric Acid, Sulphamic Acid, Sulfamidic Acid, Aminosulfonic Acid
Product Description
What is Sulfamic Acid?
Sulfamic Acid (H3NSO3) is a white, crystalline, water-soluble solid with strong acidic properties. As a chemical intermediate, descaling agent, industrial cleaner, and pH regulator, it finds extensive application. Its applications span across food processing, metal cleaning, water treatment, paper bleaching, and textile dyeing. Sulfamic Acid is valued for its high efficiency, low corrosiveness, and stability, making it a safer alternative to stronger acids like hydrochloric and nitric acid.
Preparation Methods:
Sulfamic Acid is synthesized by reacting urea with sulfuric acid. This reaction produces high-purity Sulfamic Acid, which is then crystallized and dried for industrial use. The resulting compound is non-volatile, non-hygroscopic, and thermally stable, making it an ideal choice for various applications requiring controlled acidity and strong descaling performance.
Related parameters:
| Items | Standards |
| Purity | ≥99.5% |
| Sulpate | ≤0.05% |
| Ferrum | ≤0.0005% |
| Heavy Metals | ≤0.001% |
| Loss on Drying | ≤0.1% |
| Insoluble in the Water | ≤0.02% |
| Appearance | White Crystal |
| Standard No | HG/T2527-2011 |
Recommended dosage of Sulfamic Acid:
| Applications | Dosage |
| Food Processing Cleaning | 0.5% – 2% solution |
| Metal Descaling | 5% – 10% solution |
| Paper Bleaching Stabilizer | 0.1% – 0.5% |
| Textile Dyeing Auxiliary | 0.5% – 2% |
| Water Treatment Descaler | 1% – 3% |
| Household Cleaning Agents | 3% – 10% |
Sulfamic Acid has wide range of uses:
Food Processing
Used as a food-grade cleaning agent to remove mineral deposits such as scale and rust from food processing equipment. Ideal for cleaning pipelines and equipment in dairy, beverage, and confectionery industries.
Metal Cleaning & Descaling
Acts as a descaler for boilers, condensers, and heat exchangers, replacing nitric and hydrochloric acids to reduce metal corrosion risks.
Paper Industry
Functions as a bleaching stabilizer in pulp and paper production, enhancing paper quality.
Textile Industry
Used in dye manufacturing and textile treatments to prevent fading and improve color stability.
Water Treatment
Serves as a descaler and pH regulator in cooling water systems, helping to prevent scale buildup.
Household & Industrial Cleaners
Key ingredient in toilet cleaners, tile cleaners, and rust removers, effectively eliminating dirt and mineral deposits.
User asked question:
Q: How does Sulfamic Acid compare to other descalers?
A: Sulfamic Acid is a highly effective descaler that offers a safer alternative to traditional acids like hydrochloric and nitric acid. While these stronger acids can cause excessive corrosion and damage to metal surfaces, Sulfamic Acid provides excellent descaling performance with significantly lower corrosiveness. For boilers, heat exchangers, and food processing equipment, for example, where metal protection is essential, this makes it perfect. Its controlled action ensures efficient scale removal while extending equipment lifespan.
