Product Name: Sulfamic Acid
Chemical Formula: H3NSO3
Other Names: Amidosulfonic Acid, Sulfamidic Acid
CAS Number: 5329-14-6
Recommended Uses: Descaling agent, cleaning additive, pH regulator, industrial cleaning, swimming pool maintenance
Manufacturer Information: Listed on container or company website
Emergency Contact: Refer to local poison control center
Hazard Classification: Corrosive to metals (Category 1), Eye damage (Category 1), Skin irritation (Category 2)
Label Elements: Pictogram (corrosion symbol), Signal word “Danger”
Hazard Statements: Causes severe skin burns and eye damage, may cause respiratory irritation if dust is inhaled
Precautionary Statements: Avoid contact with skin, eyes, and clothing; do not breathe dust; wash hands after handling; wear protective equipment
Target Organs: Eyes, skin, respiratory tract
Chemical Name: Sulfamic Acid
Synonyms: Amidosulfonic Acid, Sulfamidic Acid
CAS Number: 5329-14-6
Concentration: 99-100% by weight in technical grade products
Impurities: May contain minimal amounts of inorganic salts or water depending on manufacturer; always check product certificate of analysis for details
Eye Contact: Immediately flush eyes with water for at least 15 minutes, lifting upper and lower eyelids; remove contact lenses if present; seek medical attention promptly
Skin Contact: Remove contaminated clothing; wash affected area with soap and plenty of water for 15 minutes; seek medical help if irritation persists
Inhalation: Move person to fresh air; keep at rest; seek medical advice if symptoms like coughing or difficulty breathing occur
Ingestion: Do not induce vomiting; rinse mouth thoroughly with water; drink small quantities of water if conscious; seek immediate medical attention
Most Important Symptoms/Effects: Burning sensation, redness, pain, serious eye damage, respiratory distress
Flammability: Not combustible; will not ignite easily
Suitable Extinguishing Media: Water spray, foam, dry chemical, CO2
Unsuitable Extinguishing Media: Avoid water jet which may spread material
Hazardous Combustion Products: Sulfur oxides, nitrogen oxides, ammonia, toxic fumes may form on thermal decomposition
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, protective clothing, boots, and gloves
Special Precautions: Prevent runoff from entering drains, waterways, or soil as acid effluent can cause significant harm
Personal Precautions: Use standard chemical protective gloves, goggles, face shield, chemical-resistant clothing; avoid breathing dust
Environmental Precautions: Avoid discharge into surface or groundwater; prevent chemical from spreading
Methods for Clean-Up: Sweep up crystals or powder without creating dust clouds; absorb residues with inert material like dry sand or earth; shovel into appropriate labeled containers for disposal
Decontamination: Wash area thoroughly with water after cleanup; ventilate area well
Reporting: Notify relevant authorities if spill could enter waterways or if required under local regulations
Handling Practices: Wear recommended protective equipment, work in well-ventilated spaces, avoid eye and skin contact, avoid inhaling dust
General Hygiene: Do not eat, drink, or smoke while handling; wash hands thoroughly before breaks or after exposure
Storage Conditions: Keep containers tightly closed in cool, dry, ventilated area; store away from strong bases, oxidizers, chlorine-releasing compounds, moisture
Packaging Materials: Store in corrosion-resistant containers with secondary containment to prevent leaks or spills
Specific Use Notes: Keep product away from incompatible substances to avoid potentially violent reactions or hazardous gas formation
Occupational Exposure Limits: No established OSHA, ACGIH, or NIOSH limits in the U.S.; always minimize exposure to dust and acidic vapors
Engineering Controls: Use local exhaust ventilation or general room ventilation to reduce airborne dust
Personal Protective Equipment (PPE): Chemical safety goggles, full-face shield for splash risk, acid-resistant gloves (neoprene, nitrile, rubber), lab coat or apron, closed shoes
Respiratory Protection: Use NIOSH-approved dust respirator if local ventilation is inadequate or exposure risk exists
Environmental Controls: Prevent product releases into drains, sewers, water bodies
Appearance: White, odorless crystalline solid or powder
Odor: None
pH (aqueous solution): 1.2 (1% w/v, water)
Melting Point: 205°C (401°F)
Boiling Point: Decomposes before boiling
Solubility: Readily soluble in water; low solubility in ethanol
Density: 2.126 g/cm³
Vapor Pressure: Negligible at 20°C
Partition Coefficient (n-octanol/water): Not applicable
Evaporation Rate: Not volatile
Other Properties: Decomposes at high temperatures, releases toxic gases
Chemical Stability: Stable under recommended storage conditions and normal temperatures
Conditions to Avoid: Exposure to moisture, heat, strong bases, or oxidizers
Incompatible Materials: Bleach, chlorates, nitrites, cyanides, strong alkalis, strong reducing agents
Hazardous Decomposition Products: Sulfur dioxide, sulfur trioxide, nitrogen oxides, ammonia gas on contact with bases
Polymerization: Does not occur
Special Notes: Reacts vigorously with strong bases and emits irritating fumes with hypochlorites
Likely Routes of Exposure: Inhalation, skin, eyes, ingestion
Acute Effects: Eye burns, severe skin irritation, potential respiratory tract irritation on inhalation, gastrointestinal distress on ingestion
Chronic Effects: Prolonged or repeated exposure may cause dermatitis or aggravate lung conditions
LD50 (oral, rat): 1450 mg/kg
Symptoms: Pain, redness, blistering, eye watering, difficulty breathing, nausea;
Carcinogenic Status: Not classified as a carcinogen by IARC, NTP, or OSHA
Other Health Effects: No significant mutagenic or reproductive effects reported
Aquatic Toxicity: Harmful to aquatic organisms at high concentrations; may cause pH shift, damaging aquatic life
Persistence and Degradability: Expected to dissociate and neutralize in natural waters; not persistent
Bioaccumulation Potential: Low, does not accumulate in tissues
Soil Mobility: High solubility leads to migration in moist soils
Other Environmental Hazards: Potential for acidification of water courses or soil with large spills
Disposal Methods: Neutralize small amounts with dilute alkali before washing away with large volume of water; do not pour concentrated solutions or large quantities into drains
Contaminated Packaging: Rinse containers thoroughly and send to licensed recycler or incinerator
Regulatory Disposal Requirements: Follow local, regional, national regulations for hazardous chemical waste
Special Notes: Avoid release to natural water systems or soil; use appropriate containers and labeling for storage and transport to disposal facility
UN Number: 2967
UN Proper Shipping Name: Sulfamic Acid
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: III (Lower hazard category for corrosives)
Label: Corrosive
Marine Pollutant: Not classified as a marine pollutant
Special Precautions: Secure packaging, keep dry, protect from impact and damage during transport; must conform to IMDG, IATA, ADR rules as applicable
OSHA: Not specifically regulated, general duty to limit exposure to hazardous substances
TSCA: Listed in the U.S. Toxic Substances Control Act Inventory
EPCRA/SARA: Does not appear on SARA Title III Section 313 or Extremely Hazardous Substances lists
REACH (European Union): Registered, complies with EU chemical safety guidelines
Other National Regulations: Subject to workplace exposure, storage, and transport rules in many jurisdictions; review local and federal regulations
Labeling Requirements: Must carry appropriate hazard warnings, risk statements, and protective advice per GHS and national regulation
