Product Name: Ammonium Sulfamate
Chemical Formula: NH4NH2SO3
CAS Number: 7773-06-0
SYNONYMS: Sulfamic acid, ammonium salt; Amidosulfonic acid ammonium salt
Recommended Use: Herbicide, compost accelerator, flame retardant, industrial chemical
Supplier: Typically identified on packaging; manufacturer contact details provided for various regions
Emergency Contact: Local poison control center and manufacturer’s emergency line
Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Acute toxicity oral (Category 5)
Signal Word: Warning
Hazard Statements: Causes skin and serious eye irritation. May cause respiratory irritation and discomfort if inhaled. Harmful if swallowed in significant quantities.
Pictograms: Exclamation mark for irritant
Precautionary Statements: Avoid breathing dust. Use only with adequate ventilation. Wash thoroughly after handling. Wear eye and skin protection. If in eyes, rinse with water for several minutes and remove contact lenses if present.
Chemical Name: Ammonium Sulfamate
CAS Number: 7773-06-0
Concentration: Typically 99-100% ammonium sulfamate in pure product
Impurities/Other Ingredients: May include traces of ammonia or by-products from manufacturing, generally at negligible levels
Inhalation: Move person to fresh air. If breathing is difficult, administer oxygen and seek medical attention. Avoid direct contact with dust. Remove victim from exposure.
Skin Contact: Remove contaminated clothing and wash skin with soap and water. Seek medical attention if irritation persists or develops.
Eye Contact: Rinse thoroughly with water for at least 15 minutes. Remove contact lenses if present and easy to do. Continue rinsing and get medical attention immediately.
Ingestion: Rinse mouth with water. Do not induce vomiting. Administer water if person is conscious, and seek immediate medical advice.
Most Important Symptoms: Eye and skin irritation, respiratory discomfort, nausea if ingested. No delayed symptoms have strong documentation in regular workplace exposure.
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, carbon dioxide.
Unsuitable Extinguishing Media: None known for normal quantities; best to avoid strong water jet to minimize chemical run-off.
Hazardous Combustion Products: May emit toxic fumes of ammonia, sulfur oxides, and nitrogen oxides.
Firefighting Instructions: Wear self-contained breathing apparatus. Use protective clothing. Cool containers exposed to fire with water spray. Avoid inhaling decomposition products.
Explosion Data: Product is not classified as explosive.
Additional Advice: Keep run-off water out of drains and waterways.
Personal Precautions: Wear appropriate personal protective equipment including gloves, safety eyewear, and dust mask.
Environmental Precautions: Prevent product from entering drains, sewers, or public water supplies. Take measures to minimize run-off to soil and water.
Methods for Cleaning Up: Sweep or scoop up excess material carefully to avoid creating dust. Place in appropriate, labeled waste container for disposal. Wash area with plenty of water.
Other Precautions: Increase ventilation in affected area if indoors. Use wet methods to minimize airborne dust.
Handling: Use proper ventilation to limit dust exposure. Avoid skin, eye, and clothing contact. Do not eat, drink, or smoke while handling the product.
Safe Storage: Store in original, tightly sealed container in cool, dry, well-ventilated area. Keep away from strong oxidizers, acids, and moisture. Keep out of reach of children and pets.
Special Precautions: Avoid generating and breathing dust. Do not store near food or animal feed. Ensure containers are labeled and tightly closed when not in use.
Exposure Limits: No specific occupational exposure limits have been established under OSHA or ACGIH guidelines.
Engineering Controls: Use local exhaust or general ventilation to minimize airborne dust and vapor exposure.
Personal Protective Equipment: Wear chemical-resistant gloves, protective eyewear, and dust mask or respirator if airborne concentrations are elevated.
Other Protective Equipment: Use protective clothing to prevent skin contact. Facilities should have eyewash stations and emergency showers.
Hygiene Measures: Wash hands thoroughly after handling. Remove contaminated clothing and wash before reuse.
Physical State: Crystalline solid
Appearance: White crystals or powder
Odor: Nearly odorless, faint ammonia scent possible
pH: Approximately 4.5 (1% solution in water)
Melting Point: Decomposes before melting – at approximately 131 °C
Boiling Point: Not applicable, decomposes
Solubility in Water: Easily soluble; around 190 g/L at 20°C
Vapor Pressure: Negligible at room temperature
Density: 1.76 g/cm³
Other Properties: Stable under usual temperatures, will decompose with heat, releasing toxic fumes
Chemical Stability: Stable under recommended handling and storage conditions.
Incompatible Materials: Strong oxidizing agents, acids, and bases. Ammonium compounds may react with hypochlorites or nitrates to produce hazardous gases.
Hazardous Reactions: Ammonium sulfamate can decompose at elevated temperatures releasing toxic ammonia, nitrogen oxides, and sulfur oxides.
Conditions to Avoid: Heat, open flames, moisture, poor ventilation, and contact with incompatible chemicals.
Hazardous Decomposition Products: Ammonia, sulfur oxides, nitrogen oxides evolve during thermal decomposition.
Acute Toxicity: LD50 (oral, rat) > 2000 mg/kg; low acute oral toxicity; irritation noted at higher doses.
Symptoms of Exposure: Eye and skin irritation, gastrointestinal disturbances like nausea or vomiting after ingestion, respiratory discomfort with inhalation of dust.
Chronic Effects: No strong evidence for carcinogenicity, mutagenicity, reproductive toxicity in humans.
Skin Corrosion/Irritation: Causes moderate to severe irritation.
Eye Damage/Irritation: Considerable irritation, potential for damage with direct contact.
Sensitization: Not considered a sensitizer by current evidence.
Eco-Toxicity: Amphibious and aquatic toxicity low to moderate, can lead to temporary pH changes in high concentrations. LC50 (96-hr, fish): generally > 100 mg/L.
Persistence and Degradability: Ammonium sulfamate decomposes in soil with microbial action, showing fairly rapid breakdown.
Bioaccumulation Potential: Not likely to bioaccumulate due to high solubility and low persistence in organisms.
Mobility in Soil: Moves readily in water and soil due to strong solubility; avoid contamination of natural waterways.
Other Adverse Effects: Runoff can increase local nitrate/ammonium levels in sensitive ecosystems.
Product Disposal: Treat as non-hazardous chemical waste. Collect and seal in labeled containers. Dispose of according to local, state, and federal regulations.
Contaminated Packaging: Wash empty packaging thoroughly. Recycle or dispose of containers according to official guidelines. Do not reuse for other purposes.
Additional Considerations: Avoid discharge to the environment. Contact approved waste disposal services to ensure full compliance.
UN Number: Not regulated as hazardous for ground, air, or sea transport.
Transport Hazard Class: Not classified as dangerous for transportation.
Packing Group: Not assigned
Labels Required: None for ordinary transportation. Use bulk chemical labeling in commercial settings.
Special Precautions: Prevent spillage during loading/unloading. Store upright to avoid container damage or leakage. Keep separate from food and oxidizers.
Specific Regulations: Not listed as a hazardous substance by major international agencies such as OSHA, IARC, or ACGIH. Not subject to reporting under SARA Title III.
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2)
Inventory Listing: Present on TSCA (US), EINECS (EU), DSL (Canada), and other national inventories.
Other Regulations: Follow all local, regional, and national requirements for safe handling, storage, and disposal. Not regarded as a controlled substance in most jurisdictions.
Workplace Labeling: Use information from sections above to build compliant workplace safety communications.
