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Name: Tetramethylguanidine
Chemical Formula: C5H13N3
CAS Number: 80-70-6
Common Appearance: Colorless to pale yellow liquid, amine-like odor
Common Uses: Organic synthesis catalyst, pharmaceutical intermediate, specialty chemical applications
Acute Effects: Highly corrosive to skin and eyes, may cause permanent damage
Toxic Effects: Harmful if swallowed, inhaled, or absorbed through skin
Environmental Hazard: Toxic to aquatic life, persistent in water systems
Fire Risk: Flammable liquid, vapors heavier than air, spreads fire easily
Signal Word: Danger (according to GHS)
Main Hazards: Severe burns, respiratory distress, blindness risk
Main Ingredient: Tetramethylguanidine, 99% or greater
Impurities: May include trace amines, moisture below 0.5%
Nature of Substance: Pure chemical, rarely formulated with stabilizers
Inhalation: Remove from exposure, provide oxygen if breathing is difficult, seek medical attention
Skin Contact: Flood skin with water, remove contaminated clothing, consult a physician for burns
Eye Contact: Rinse eyes immediately for at least 15 minutes, get prompt ophthalmic care
Ingestion: Rinse mouth, do not induce vomiting, go to emergency room quickly
Suitable Extinguishers: Dry chemical, foam, carbon dioxide
Specific Hazards: Emits toxic nitrogen oxides on combustion
Precaution for Firefighters: Wear self-contained breathing apparatus, avoid inhaling fumes
Protective Actions: Keep containers cool, prevent runoff from entering water supply
Personal Protection: Chemical splash goggles, gloves, lab coat, full-face respirator for large spills
Clean-up Method: Absorb with inert material, ventilate area, avoid open flames
Environmental Precautions: Block drains, prevent spill from reaching natural water
Waste Disposal: Store in sealed container for hazardous waste collection
Handling Advice: Work in fume hood, open containers slowly, avoid breathing vapors
Storage Conditions: Store in tightly sealed container, cool and dry location, away from acids and oxidizers
Incompatibles: Acids, oxidizing agents, acid chlorides
Storage Problems: Fumes may cause corrosion in poorly ventilated spaces
Engineering Controls: Use local exhaust ventilation or chemical fume hood
Personal Protective Gear: Nitrile gloves, chemical splash goggles, long sleeves, closed shoes
Respiratory Protection: Full-face respirator with organic vapor cartridge for spills or poor ventilation
Monitoring: Air monitoring near work surfaces essential to check vapor build-up
Work Practices: No eating or drinking near work area, wash hands thoroughly after handling
Physical State: Liquid
Color: Colorless or light yellow
Odor: Ammonia-like, pungent
Boiling Point: Around 160°C
Melting Point: Near -6°C
Solubility: Miscible with water and most organic solvents
Density: About 0.925 g/mL
Vapor Pressure: Moderate at room temperature
pH: Strongly basic in solution
Chemical Stability: Remains stable under recommended storage conditions
Reactive Risks: Reacts violently with acids, generates heat and toxic fumes
Decomposition Risks: Breaks down to nitrogen oxides, cyanides, and other caustics under fire or high heat
Polymerization: Not known to polymerize, but reacts unpredictably with some organics
Routes of Exposure: Skin, inhalation, ingestion, eyes
Probable Health Effects: Corrosive burns, lung irritation, nausea, headache, confusion from heavy exposure
Long-term Risk: Damage to respiratory and digestive mucosa, scarring of skin and cornea, possible kidney stress
Carcinogenic Potential: Not classed as a known carcinogen by IARC or OSHA
Acute Toxicity: LD50 oral (rat): estimated between 100-500 mg/kg
Sensitization: Not widely recognized as a sensitizer but skin allergy may develop
Aquatic Toxicity: Confirmed toxic to fish and aquatic invertebrates at low concentrations
Persistence: Resists breakdown in water and soil, persists for days
Bioaccumulation: Little evidence for bioaccumulation, but long-term runoff affects local ecosystems
Ecological Risk: Disrupts natural water chemistry, poses threat to wastewater treatment operations
Waste Handling: Treat as hazardous chemical waste
Recommended Disposal: Send to authorized hazardous waste contractor
Drain Disposal: Strictly avoid pouring down drains, seeps into groundwater
Container Cleaning: Rinse with copious water, neutralize residue before recycling or discarding
Community Guidance: Notify local waste authority before disposal of large quantities
Shipping Name: Tetramethylguanidine, flammable liquid
Hazard Class: Class 3 (flammable liquid), corrosive risk
Packing Group: II or III, depends on concentration
Label Requirements: Flammable, corrosive labels, avoid air shipping without special packaging
Transport Method: Use vented safety drums, secondary containment in transit
Occupational Exposure Limits: No established OSHA PEL, but tight safety limits advised
Chemical Inventories: Listed on TSCA, REACH notifications in place
Workplace Controls: Subject to OSHA chemical safety rules, employer responsibility for hazard training
Environmental Control: Complies with Clean Water Act restrictions, requires special permits for discharge
Labeling: GHS-compliant labeling mandatory in workplaces
