Product Name: Monomethylamine
Chemical Formula: CH5N
CAS Number: 74-89-5
Synonyms: Methylamine, Methanamine
Recommended Use: Chemical synthesis, water treatment, agricultural chemicals
Supplier Identification: [Insert supplier/company name, address, phone number, emergency contact]
Classification: Flammable gas, toxic by inhalation, corrosive to eyes and skin
Hazard Statements: Extremely flammable gas, causes severe skin burns and eye damage, toxic if inhaled
Pictograms: Flammable, Corrosive, Toxic
Signal Word: Danger
Precautionary Statements: Keep away from heat, sparks, open flames; avoid breathing gas; wear protective equipment; wash thoroughly after handling; store in a well-ventilated place; contact with skin, eyes, or clothing must be avoided
Physical Hazards: May cause fire or explosion, vapor may accumulate indoors and ignite easily
Health Hazards: Inhalation may cause coughing, headache, burning sensation, shortness of breath, risk of life-threatening pulmonary edema
Chemical Name: Monomethylamine
Concentration: 99-100%
Impurities: Trace water, ammonia, dimethylamine (may vary based on source)
CAS Number: 74-89-5
Molecular Weight: 31.06 g/mol
EC Number: 200-820-0
Inhalation: Move person to fresh air immediately; seek medical attention if symptoms persist; administer oxygen if breathing is difficult; provide artificial respiration if person is not breathing
Skin Contact: Remove contaminated clothing; rinse skin thoroughly with water for at least 15 minutes; obtain medical help for persistent burning or blistering
Eye Contact: Flush eyes continuously with water for at least 30 minutes; lift eyelids to ensure full irrigation; urgent medical attention required
Ingestion: Rinse mouth with water; do not induce vomiting; call a physician or poison center
Symptom Notes: Inhalation or skin exposure may lead to delayed respiratory and systemic effects that warrant medical evaluation even if symptoms disappear
Suitable Extinguishing Media: Dry chemical, carbon dioxide, water spray, alcohol-resistant foam
Hazardous Combustion Products: Nitrogen oxides, carbon monoxide, carbon dioxide
Specific Hazards: Flammable gas, forms explosive mixtures with air, may cause flashback fire
Protective Equipment for Firefighters: Full protective suit and self-contained breathing apparatus; approach incident from upwind to avoid toxic fumes; use spray to keep containers cool; evacuate area if large amounts threaten to explode
Special Procedures: Prevent firefighting runoff from entering water sources
Personal Precautions: Evacuate area, eliminate sources of ignition, ventilate the area, use self-contained breathing apparatus for large spills
Environmental Precautions: Keep out of drains, surface water, and soil, contain spillage and prevent runoff
Methods for Cleanup: Stop leak if possible without risk, use non-sparking tools, absorb with inert material like vermiculite, scoop into sealed chemical waste containers
Spill Response: Notify emergency services, wear chemical-resistant gloves and face protection, place contaminated materials in approved containers for disposal, neutralize residue with dilute acid solution under trained supervision
Safe Handling Guidelines: Work in well-ventilated spaces, minimize contact with vapor, wear gloves and splash goggles, prevent static discharge by grounding equipment, use only with proper training
Storage Requirements: Store in tightly closed, labeled cylinders, isolate from oxidizers and acids, keep below 50°C, secure in upright position, check for leaks regularly, post warning signs, place containers in a cool, dry, well-ventilated area designed for flammable gases
Incompatible Materials: Strong acids, oxidizers, halogens, many metals, avoid exposure to materials that catalyze decomposition
Occupational Exposure Limit: OSHA PEL: 10 ppm (ppm = parts per million), NIOSH REL: 10 ppm, ACGIH TLV: 5 ppm short-term exposure limit
Engineering Controls: Local exhaust ventilation, explosion-proof electrical systems, gas detection alarms, sealed systems, eyewash stations, emergency showers
Personal Protective Equipment: Chemical-resistant gloves (butyl rubber, nitrile), safety goggles or face shield, flame-resistant lab coats, respiratory protection (full-face respirator with ammonia/methylamine cartridge for gas exposure)
Hygiene Measures: Remove soiled clothing immediately; avoid eating or drinking near chemical; wash hands thoroughly before breaks and after use
Appearance: Colorless, compressed gas at room temperature; liquid under pressure
Odor: Strong ammonia-like, pungent
Odor Threshold: 1-5 ppm (distinct at low levels)
Melting Point: -93.5°C
Boiling Point: -6.3°C
Density: 0.7 g/cm3
Vapor Pressure: 4.5 atm at 21°C
Solubility: Completely soluble in water; forms strongly alkaline solution
pH: 12.0 (in aqueous solution)
Flammability: Extremely flammable
Flash Point: -18°C (closed cup)
Explosion Limits: 4.9–20.7% in air
Partition Coefficient (logKow): -0.57
Chemical Stability: Remains stable under recommended storage conditions, decomposes on heating or on contact with acids
Hazardous Reactions: Violent reaction with strong oxidizers, halogens, acid anhydrides, organic peroxides, and hypochlorites; reacts with carbon dioxide, forms explosive mixtures with air
Conditions to Avoid: Heat, spark, flames, static electricity, confined spaces
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide, ammonia
Polymerization: Does not self-polymerize
Acute Toxicity: Inhalation LC50 (rat, 1hr): 12,000 ppm; oral LD50: 122 mg/kg (rat)
Skin Corrosion: Burns, blistering, long-term damage with prolonged contact
Eye Damage: Severe burns, permanent injury possible
Respiratory Effects: Difficulty breathing, chest pain, pulmonary edema
Sensitization: No sensitizing effects observed
Chronic Exposure: May damage airways over time; recurring exposure irritates lungs and mucous membranes
Symptoms of Overexposure: Cough, sore throat, shortness of breath, headache, nausea, eye pain, blurred vision
Environmental Fate: Highly mobile in soil and water, rapidly biodegrades, high volatility
Aquatic Toxicity: Toxic to fish and aquatic life; LC50 (96h, fish): 18 mg/L
Water Hazard Class: 2 (hazard to water; German classification)
Persistence and Degradability: Readily biodegradable with sufficient oxygen and microbial presence
Bioaccumulative Potential: Not likely to accumulate in food chain; low LogKow
Other Effects: High pH in water may harm organisms by shifting water chemistry
Waste Handling: Treat as hazardous chemical waste, neutralize with dilute acid under supervision, absorb on vermiculite or sand
Disposal Method: Incinerate in chemical incinerator with afterburner and scrubber, follow local environmental regulations
Packaging Disposal: Return empty cylinders to supplier or recycle following hazardous materials protocols
Precautions: Do not allow to enter drains or watercourses; consult waste management authorities before off-site disposal
UN Number: UN1061
Shipping Name: Methylamine, anhydrous
Transport Hazard Class: 2.1 (Flammable gas)
Packing Group: Not applicable for gases
Labels: Flammable gas, toxic
Environmental Hazards: Severe risk if released during transport; reportable in spills
Special Precautions: Cylinders secured upright, transported by trained personnel only; check for compatibility with vehicle and other cargo
OSHA Status: Regulated as hazardous, includes requirements for labeling and worker training
TSCA Inventory: Listed
SARA Title III: Listed as an extremely hazardous substance (Section 302); subject to reporting in case of release
RCRA: Waste number U161 (hazardous waste regulation)
CERCLA: Reportable quantity (RQ) 100 pounds
Other Regulations: Subject to workplace exposure limits, international transport rules, state/local right-to-know laws; chemical safety program required in most facilities
