Sulfamic Acid: High-Purity Cleaning and Descaling Agent for Industrial and Household Use
Sulfamic acid, a strong organic acid with the formula H₃NSO₃, is a white crystalline solid prized for its non-corrosive properties compared to mineral acids like hydrochloric acid. This versatile compound excels in descaling, cleaning, and synthesis applications, providing efficient removal of scale and rust without damaging metals or surfaces. As a leading global supplier, Aozun Chem offers sulfamic acid meeting exacting purity standards, ideal for industries seeking safe, effective solutions in water treatment, manufacturing, and consumer products. From boiler maintenance to eco-friendly cleaners, our sulfamic acid ensures superior performance and reliability.
Key Specifications
| Property | Value/Description |
|---|---|
| CAS Number | 5329-14-6 |
| Molecular Weight | 97.09 g/mol |
| Purity | ≥99% (industrial grade) |
| Appearance | White crystalline powder |
| Melting Point | 205°C (decomposes) |
| Boiling Point | Decomposes before boiling |
| Density | 2.15 g/cm³ |
| Solubility | Highly soluble in water (up to 150 g/100 mL at 20°C); soluble in methanol, slightly in ether |
| Packaging Options | 25 kg bags, 500 kg supersacks, or bulk |
Manufactured through the reaction of urea with fuming sulfuric acid, our sulfamic acid is low in heavy metals and chlorides, promoting safer handling and consistent results in sensitive processes.
Applications of Sulfamic Acid
Its mild acidity and stability make it a preferred choice for targeted cleaning and chemical reactions:
- Descaling and Cleaning: Effectively dissolves calcium and magnesium deposits in boilers, heat exchangers, and cooling towers, outperforming muriatic acid with less fuming and corrosion.
- Household and Industrial Cleaners: Key ingredient in toilet bowl cleaners, rust removers, and descaling powders, providing quick action without harsh odors.
- Water Treatment: Used in cooling water systems to prevent scale formation, enhancing efficiency in HVAC and power generation.
- Herbicides and Flame Retardants: Serves as a sulfamating agent in agricultural chemicals and fireproofing textiles for improved crop protection and safety.
- Pharmaceuticals and Electroplating: Acts as a catalyst in drug synthesis and a buffering agent in metal plating baths for smoother, brighter finishes.
- Paper and Textile Processing: Aids in bleaching and sizing, contributing to whiter pulp and stronger fabrics.
With annual global production surpassing 100,000 tons, sulfamic acid supports sustainable practices by enabling phosphate-free formulations in detergents.
Why Choose Aozun Chem’s Sulfamic Acid?
- Premium Quality: Surpasses ISO 9001 and REACH standards, with trace impurities below 0.01% for optimal efficacy.
- Value-Driven Pricing: Bulk supplies at competitive rates, tailored to your volume needs.
- Global Distribution: Prompt shipping to Asia, Europe, and the Americas, starting with MOQs of 1 MT.
- Technical Guidance: On-site support for formulation, safety protocols, and application testing.
- Environmental Responsibility: Biodegradable and low-VOC production, aligning with green chemistry regulations.
Elevate your cleaning and processing operations with Aozun Chem’s dependable sulfamic acid.
Frequently Asked Questions (FAQs)
What is sulfamic acid, and how does it differ from sulfuric acid?
It is a solid organic acid used for descaling, offering controlled reactivity and less corrosiveness than liquid sulfuric acid (H₂SO₄). While sulfuric acid is stronger for heavy-duty etching, sulfamic acid is safer for metals, generating fewer fumes and enabling easier neutralization.
How is sulfamic acid produced?
It is synthesized by reacting urea with oleum (fuming sulfuric acid) or chlorosulfonic acid, followed by purification. This method yields high-purity crystals suitable for food-contact and industrial uses, with yields often exceeding 90%.
What safety measures are recommended for handling sulfamic acid?
As a strong acid, it can cause burns on skin or eyes; always use gloves, goggles, and protective clothing. It is non-flammable but generates heat when dissolved—add to water slowly. Store in cool, dry conditions away from bases; inhalation may irritate respiratory tracts, with LD50 around 2,000 mg/kg in rats.
Is it suitable for food-grade or potable water applications?
Yes, in purified forms (≥99.5% purity), it is approved as a processing aid (E507) for cleaning equipment in food industries and treating drinking water systems, compliant with FDA and WHO guidelines when rinsed thoroughly.
What is the shelf life and storage best practices for sulfamic acid?
It remains stable for 3+ years in sealed, moisture-proof containers at <30°C. Avoid humidity to prevent caking; use desiccants in packaging for long-term storage in humid environments.
Can it be used in eco-friendly cleaning products?
Certainly—its biodegradability (over 90% in 28 days) makes it ideal for phosphate-free detergents and green descalers, reducing environmental impact compared to traditional acids in wastewater treatment.
How does sulfamic acid compare to citric acid or phosphoric acid in descaling?
Sulfamic acid provides faster scale dissolution (up to 5x quicker than citric acid) at lower concentrations, with better performance on hard water deposits than phosphoric acid, though it requires pH monitoring to avoid pitting on sensitive surfaces like aluminum.
Dive deeper into our product resources or inquire about samples to optimize your sulfamic acid usage.
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