Amidosulfonic acid
General Product Information
| Article | Amidosulfonic acid |
| Synonyms | Amidosulfuric acid, Aminosulfonic acid, Sulfamic acid, Sulphamic acid, Sulfamidic acid |
| CAS No. | 5329-14-6 |
| EEG No. | 016-026-00-0 |
| EINECS No. | 226-218-8 |
| IMO | 8 (A) |
| Tariff Code | 28111980 |
| UN No. | 2967 |
| VLG/ADR | Class 8, Packing Group III |
Description
Amidosulfonic acid, also known as sulfamic acid, is a white, Odorless crystalline powder with strong acidic properties. It has excellent solubility in water and is widely used as a descaler and cleaner in the industrial and commercial sectors. Thanks to its mild corrosive action compared to other strong acids, amidosulfonic acid is suitable for use on a variety of materials without greatly affecting them.
Characteristics
- Odor: Odorless.
- Hygroscopic: –
- Color: White.
- Grade: Technical.
- Solubility: Highly soluble in water.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | H3NSO3 |
| Molar Weight | 97.09 g/mol |
| Melting Point | 205 °C (decomposition) |
| Boiling Point | – |
| Density | 2.13 g/cm³ |
| Refractive Index | – |
| pH | 1.5 (at 1% solution) |
Interessing Links
- CAS Common Chemistry – Sulfamic Acid
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Sulfamic Acid – For chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Sulfamic acid
Applications
Amidosulfonic acid is applied in various ways, for instance:
1. Industrial Cleaning
Effective against scale and rust deposits in boilers, heat exchangers, pipes and cooling systems.
2. Household Cleaning
Active ingredient in descalers for kettles, coffee makers and toilets.
3. Paper Industry
Used as a pH regulator and in bleaching processes.
4. Textile Industry
Applied at color fixation and pH regulation during dyeing.
5. Metalworking
For cleaning and surface treatment of metals.
6. Water Treatment
Prevention and removal of deposits in cooling water systems.
7. Chemical Synthesis
Used as an intermediate and catalyst in various chemical processes.