Sulfamic Acid Information

Trade Name: Sulfamic acid
Chemical Name: Sulfamic acid
IUPAC Nomenclature: Amidosulfuric acid
Synonyms: Amidosulfonic acid, Aminosulfonic acid
Chemical Family: Inorganic acid
Chemical Formula: NH2SO3H

SULFAMIC ACID is a dry, non-volatile, non-hygroscopic, odorless, white crystalline, stable acid .It is moderately soluble in water and forms strongly acidic aqueous solution that is comparable in acidity to the common strong mineral acids but it may be easily handled and stored in the dry form. At room temperature ,dilute aqueous sulfamic acid solution is stable for a long time but rapid hydrolysis occurs at elevated temperatures .Its solution is less corrosive toward metals than other mineral acid. Because of advantages such as handling ease, solubility and low corrosiveness, sulfamic acid is used for many diversified applications.

Molecular Weight 97.1
Melting Point 205
Decomposition 209
Specific Gravity 2.126
Bulk Density (loose) 1.0-1.2
Bulk Density(Parked) 1.0-1.6
Dissociation Constant: 0.101
Vapor Pressure: Not volatile
Evaporation Rate: Not volatile
Odor: None

Acid Cleaning
For descaling agent of:
Cooling towers (air conditioners)
Marine equipment (sea water evaporators)
Water wells
Oil, gas Wells
Dairy equipment (pipeline milkers, milk evaporators)
Brewery equipment
Sugar evaporators
Pulp and paper equipment
Desalination equipment
General industrial equipment (boilers, condensers, heat exchangers, evaporators, etc.)
Household equipment
Bleaching for Pulp
Sulfation and Sulfonation
Dyes and Pigments
Electroforming, Electroplating, and Electrorefining
pH Adjustment
Curing Agent for Phenol, Melamine, and Urea Resin
In Anodizing
For Manufacture of Bubbling Pipe Cleaner

CAS Number : 5329-14-6
UN Number : 2967
IMDG Classification : Class 8 (Corrosive)

Precaution For Safety Handling and Storage
Water solution of sulfamic acid shows strong acidity. It may cause eye burns, irritation of nose, throat and skin. Avoid contact with eyes skin and clothing. Avoid breathing dust. Wash thoroughly after handling.
Sulfamic acid is not flammable nor explosive itself. But when involved in a fire it may release hazardous gases, such as SO2,SO3,NH3 .
To prevent absorption of moisture and possible caking, store in a cool dry area. Do not expose to high temperature.
See Material Safety Date Sheet for detailed information
First Aid
In case of eye contact, flush eyes with water for 15 minutes. Get medical attention. Flush skin with water.

For Personal Health and Safety
Sulfamic acid in solid form causes virtually no skin irritation, but its aqueous solution may cause corrosive burns like mineral acids. When handling aqueous sulfamic acid solutions, the same safety measures must be taken as dilute sulfuric acid.

Avoid contact with skin or eyes. Cup-type, rubber or soft plastic-framed goggles, protective clothing, and rubber gloves must be worn when handling sulfamic acid either in crystalline or solution form. Avoid breathing dust. Use adequate ventilation. Wash hands thoroughly after handling.

First Aid
In case of eye contact, immediately flush the eyes with plenty of running water for at least 15 mins. and send the patient to a doctor or hospital. For skin contact, wash the area with plenty of water.

Sulfamic acid is non-flammable and non-explosive and requires no special safety measures during storage. To prevent from the absorbition of moisture and possible caking, it should be stored in a cool, dry place. Exposure to excessive temperature should be avoided.