© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Chemical Name: Sulfamic Acid
Synonyms: Amidosulfonic acid, Amidosulfuric acid, Aminosulfonic acid, Sulfamidic acid
Chemical Formula: H3NSO3
CAS Number: 5329-14-6
Recommended Uses: Descaling agent, cleaning agent for metals and ceramics, pH control agent in water treatment, plastic and dye manufacturing
Supplier Identification: Refer to supplier label for detailed contact information
Emergency Contact Information: International CHEMTREC 1-703-741-5970 or local poison control center
GHS Classification: Eye damage (Category 1), Skin irritation (Category 2), Acute toxicity oral (Category 4), Skin sensitizer (Category 1), Corrosive to metals (Category 1)
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage, harmful if swallowed, may cause an allergic skin reaction, may be corrosive to metals
Pictograms: Corrosive, Exclamation Mark
Route of Exposure: Inhalation, ingestion, skin contact, eye contact
Target Organs: Eyes, skin, gastrointestinal tract, respiratory system
Potential Health Effects: Burning of eyes and skin, coughing or throat irritation if inhaled, nausea or vomiting if ingested
Substance Name: Sulfamic Acid
Concentration: 99-100%
Chemical Formula: H3NSO3
Impurities or Stabilizing Additives: May contain trace moisture or inorganic salts if not of analytical grade
CAS Number: 5329-14-6
Inhalation: Move person to fresh air, keep at rest, seek medical attention for any breathing difficulties
Skin Contact: Remove contaminated clothing, rinse skin immediately with water for at least 15 minutes, obtain medical help if irritation occurs
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, seek immediate medical attention
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person, call a Poison Center or doctor
Symptoms and Effects: Redness, pain, burns on skin or eyes; sore throat, coughing; stomach upset
Suitable Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or foam
Unsuitable Extinguishing Media: Do not use straight water jet
Hazardous Combustion Products: Sulfur oxides, nitrogen oxides, toxic and irritating fumes
Special Hazards: May decompose to produce toxic gases at high temperatures
Protective Equipment: Full protective clothing, self-contained breathing apparatus
Fire-Fighting Procedures: Keep containers cool with water spray, avoid breathing fumes, stay upwind of fire
Personal Precautions: Wear chemical-resistant gloves, eye and face protection, suitable protective clothing
Environmental Precautions: Prevent further leakage or spillage, do not let product enter drains, waterways, or soil
Methods for Cleanup: Take up with dry, non-combustible absorbent material (e.g. sand, earth, vermiculite), keep in closed containers for disposal
Decontamination Procedures: Flush residual material with plenty of water, ventilate area, check surfaces for corrosion
Emergency Measures: Evacuate personnel to safe areas, contain spread using dikes or absorbent
Precautions for Safe Handling: Handle in a well-ventilated area, avoid breathing dust, avoid contact with skin and eyes, wash thoroughly after handling
Incompatible Products: Strong bases, oxidizing agents, bleach (sodium hypochlorite), alkali metals, nitrites, cyanides, reducing agents
Conditions for Safe Storage: Store in a tightly closed container in a cool, dry, well-ventilated place, away from incompatible materials
Storage Temperature: Ambient temperature
Packaging Materials: Compatible with glass, HDPE, polypropylene, or lined steel containers
Engineering Controls: Use local exhaust ventilation or process enclosure where dust or mist may be generated
Exposure Limits: No established OSHA PEL or ACGIH TLV for pure sulfamic acid
Eye Protection: Safety goggles with side-shields or face shield
Hand Protection: Impervious gloves suitable for acids
Body Protection: Chemical-resistant coveralls or apron
Respiratory Protection: Use NIOSH-approved respiratory protection if exposure limits are exceeded or if ventilation is inadequate
Hygiene Measures: Do not eat, drink, or smoke in the work area; wash hands before breaks and at end of shift
Appearance: White crystalline powder
Odor: Odorless
pH: 1.2 (1% aqueous solution)
Melting Point: About 205-215°C (decomposes)
Boiling Point: Not applicable (decomposes before boiling)
Solubility: Readily soluble in water, slightly soluble in methanol, insoluble in most organic solvents
Density: 2.126 g/cm3 at 20°C
Vapor Pressure: Negligible at ambient temperature
Flash Point: Not applicable (non-flammable)
Evaporation Rate: Not applicable
Explosion Limits: Not explosive
Partition Coefficient: Not determined
Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: Reacts violently with bases, oxidizers, and chlorinating agents (releasing toxic gases)
Hazardous Decomposition Products: Releases sulfur oxides, nitrogen oxides, ammonia under thermal decomposition
Conditions to Avoid: High temperatures, moisture, contact with incompatible chemicals
Incompatible Materials: Alkali metals, bases, oxidizers, sodium hypochlorite, nitrites
Acute Toxicity: Oral LD50 (rat): 3160 mg/kg
Skin Corrosion/Irritation: Causes severe skin irritation and burns
Eye Damage/Irritation: Causes severe eye damage
Respiratory Sensitization: Inhalation may cause irritation to respiratory tract
Skin Sensitization: May produce allergic skin reaction in sensitive individuals
Chronic Effects: Long-term exposure may lead to skin or respiratory tract sensitization
Other Effects: Symptoms can include burning pain, redness, ulcers on skin, blurred vision, coughing, nausea
Toxicity to Aquatic Organisms: Toxic to aquatic life, particularly fish and invertebrates
Persistence and Degradability: Sulfamic acid is not persistent, breaks down in water to harmless products with time
Bioaccumulation Potential: Not expected to bioaccumulate
Mobility in Soil: Highly soluble in water; likely to leach through soil and affect groundwater
Other Adverse Effects: Low pH can lead to harmful conditions for aquatic and terrestrial organisms
Disposal Methods: Dispose as hazardous chemical waste; dilute solutions may be neutralized with soda ash or lime before disposal to sewer (check local regulations)
Container Disposal: Rinse containers thoroughly before recycling or landfill disposal, follow all federal, state, and local regulations
Special Precautions: Avoid direct discharge of concentrated product to water bodies or sewer systems
UN Number: UN2967
Proper Shipping Name: Sulphamic Acid
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: III
Environmental Hazards: Not classified as a marine pollutant
Special Precautions for User: Wear appropriate PPE during transport accidents, avoid contact with compatible materials, follow emergency procedures
Regulatory Reference: DOT, IMDG, IATA
OSHA: Not specifically regulated under OSHA Hazard Communication Standard, but recognized as hazardous
TSCA: Listed in Toxic Substances Control Act inventory
REACH: Registered under REACH in Europe
WHMIS: Classified as D2B Toxic Material causing other chronic effects; E Corrosive Material in Canada
SARA: No sections triggered under Title III
California Prop 65: Not listed
Clean Air Act: Not classified as hazardous air pollutant
Other National and International Regulations: Classified as hazardous for workplace exposure and transport, consult regulatory body for region-specific requirements
