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Sulfamic Acid for Descaling: Top China Suppliers and Factory Solutions for Effective Cleaning
Product Description
Sulfamic Acid, with the chemical formula NH₂SO₃H, is a white crystal. It is also known by other names, including sulfamidic acid, sulphamic acid, amidosulfonic acid, amidosulfuric acid and aminosulfonic acid. Sulfamic Acid crystallizes into a stable, non-hygroscopic solid, making it easy to handle and store.
Chemical and Physical Properties
| Product Name | Sulfamic Acid |
| Chemical Name | Aminosulfonic Acid |
| Molecular Formula | NH₂SO₃H |
| Appearance | White crystalline solid |
| Odor | No odor |
| Content (%) | 99.5 MIN |
| Sulfate (%) | 0.04 MAX |
| Moisture (%) | 0.1 MAX |
| Fe (%) | 0.005 MAX |
| Water Insoluble Matter (%) | 0.02 MAX |
| CAS Number | 5329-14-6 |
Sulfamic Acid is known for its high stability under normal storage conditions and minimal moisture absorption. It remains effective even after long periods of storage, provided it is kept dry and protected from high humidity.
Applications
The versatility of sulfamic acid allows it to be widely used in various industries. Some of the key applications include:
1. Descaling and Cleaning Agent: Sulfamic acid is widely used as a descaling agent for removing rust, limescale, and other mineral deposits from industrial equipment, boilers, and household appliances like coffee machines and kettles. Its non-volatile nature and ability to produce minimal fumes make it a preferred choice over hydrochloric acid and other stronger acids for such purposes.
2. Dyes & Pigments Industry: Sulfamic acid has a wide range of applications in dyes and pigments industry, such as a elimination agent of excess nitrite in diazotization reaction, a color fixing agent for textile dyeing, and the formation of a fire protection layer on textiles.
3. Bleaching Agent in Pulp & Paper Industry: In the paper and pulp industry, sulfamic acid is used as a bleaching agent. It helps in breaking down lignin, facilitating the bleaching process, and ensuring a brighter end product without compromising the fiber integrity.
4. Additional Applications: In addition to the main applications mentioned above, sulfamic acid also has a wide range of applications in sweeteners, new herbicides, flame retardants, catalysts and chlorine stabilizers.
Storage
1. Storage
- Store in original containers.
- Keep containers securely sealed.
- Store in a cool, dry, well-ventilated area.
- Store away from incompatible materials and foodstuff containers.
- Keep away from ignition sources, heat and flame.
- Protect containers against physical damage and check regularly for leaks.
- Observe manufacturer's storing and handling recommendations.
2. Suitable Container
Multiply paper bag with sealed plastic liner or heavy gauge plastic bag.
NOTE: Bags should be stacked, blocked, interlocked, and limited in height so that they are stable and secure against sliding or collapse. Check that all containers are clearly labeled and free from leaks. Packing as recommended by manufacturer.
3. Storage Incompatibility
- Segregate from alkalies, oxidising agents and chemicals readily decomposed by acids, i.e. cyanides, sulfides, carbonates.
- Keep dry.
- Segregate from combustible materials.
- DO NOT use aluminium, galvanised or tin-plated containers.
Handling
- Avoid generating and breathing dust and limit all unnecessary personal contact.
- Wear protective clothing when risk of exposure occurs.
- Use in a well-ventilated area.
- Avoid contact with incompatible materials.
- When handling, DO NOT eat, drink or smoke.
- Keep containers securely sealed when not in use. Avoid physical damage to containers.
- Always wash hands with soap and water after handling.
- Observe manufacturer's storing and handling recommendations.
Frequently Asked Questions (FAQ)
QWhat is Sulfamic Acid and what are its other names?
Sulfamic Acid (NH₂SO₃H) is a white crystalline solid also known as sulfamidic acid, sulphamic acid, amidosulfonic acid, amidosulfuric acid, and aminosulfonic acid. It is stable, non-hygroscopic, and easy to handle and store under normal conditions.
QWhat is the CAS number and purity specification of Sulfamic Acid?
The CAS number of Sulfamic Acid is 5329-14-6. The standard purity specification requires a minimum content of 99.5%, with moisture not exceeding 0.1% and iron (Fe) content not exceeding 0.005%.
QWhat are the main industrial applications of Sulfamic Acid?
Sulfamic Acid is widely used as a descaling and cleaning agent for industrial equipment and household appliances, in the dyes and pigments industry as a nitrite elimination agent and color fixing agent, as a bleaching agent in the pulp and paper industry, and in the production of sweeteners, herbicides, flame retardants, catalysts, and chlorine stabilizers.
QWhy is Sulfamic Acid preferred over hydrochloric acid for descaling?
Sulfamic Acid is preferred over hydrochloric acid for descaling because it is non-volatile and produces minimal fumes during use. This makes it safer to handle in enclosed environments such as cleaning boilers, coffee machines, and kettles, while still being highly effective at removing rust, limescale, and mineral deposits.
QHow should Sulfamic Acid be stored safely?
Sulfamic Acid should be stored in original, securely sealed containers in a cool, dry, and well-ventilated area. It must be kept away from ignition sources, heat, flames, alkalies, oxidising agents, and chemicals such as cyanides, sulfides, and carbonates. Aluminium, galvanised, or tin-plated containers should not be used.
QWhat personal protective measures are required when handling Sulfamic Acid?
When handling Sulfamic Acid, it is important to wear appropriate protective clothing, avoid breathing or generating dust, and work in a well-ventilated area. Do not eat, drink, or smoke during handling. Always wash hands thoroughly with soap and water after use, and follow the manufacturer's storing and handling recommendations.