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Chemical Name: 3-Aminopropanol
Synonyms: 1-Amino-3-propanol, 3-Hydroxypropylamine
Molecular Formula: C3H9NO
Molecular Weight: 75.11 g/mol
Appearance: Colorless to pale yellow liquid
Odor: Ammonia-like ay come out strong, especially in confined spaces
Uses: Often found in the lab for organic synthesis, surfactants, pharmaceutical intermediates, and sometimes specialty coatings — so accidents or exposures could happen during bench work or cleaning up spills
Classification: Irritant to skin, eyes, and upper respiratory tract
Symptoms: Coughing, tearing up, burning sensation, especially if skin contact is prolonged
Hazard Statements: Causes serious eye and skin irritation, possible respiratory irritation if vapor concentrations climb or splashes get out of control
Signal Word: Warning
Precautionary Statements: Avoid breathing mist, avoid contact with skin and eyes, work in a ventilated area because a quick whiff at the bench can burn your throat
Chemical: 3-Aminopropanol
Concentration: Generally above 98% in the laboratory grade containers used in research and industrial settings
Impurities: Water, residual solvents from manufacturing may linger, but rarely above trace levels
CAS Number: 156-87-6
Eye Contact: Rinse cautiously with plenty of water for at least 15 minutes, lifting eyelids sometimes helps, take out contact lenses, keep flushing — eye damage isn’t a joke
Skin Contact: Take off contaminated clothing and wash skin thoroughly with soap and water; chemical burns can worsen if left, so quick action helps
Inhalation: Move to fresh air, watch for cough or irritation, medical attention if symptoms persist
Ingestion: Rinse mouth, don’t induce vomiting, seek medical attention fast, even small amounts can irritate your gut
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide work well
Specific Hazards: Vapors may burn, but this isn’t a high flashpoint chemical like ether, still, burning can release nasty nitrogen oxides
Firefighter Protection: Wear self-contained breathing apparatus and full protective gear, eyes stinging from smoke tells you enough
Precautions: Keep runoff from entering drains, contaminated water carries chemicals downstream, and that’s everyone’s problem
Personal Precautions: Suit up with gloves, goggles, and a lab coat; chemical-resistant gloves preferred
Environmental Precautions: Never let it run into the sink or gutter — labs with proper chemical disposal help reduce bigger messes later
Methods for Cleanup: Absorb with inert material (sand, earth), scoop up and put in clearly marked waste containers, ventilate area
Spill Response: Small spills in the fume hood are easier to control, but larger spills call for outside help, ventilation, and proper waste handling
Handling: Work in a well-ventilated space, avoid open containers, use pipets or bottles that close securely; eye-level stuff tends to splash, which is asking for trouble
Storage: Keep containers tightly closed, stored in a cool, dry, well-ventilated place; incompatible with strong acids and oxidizers
Avoid: Storage near open flames, heat, or sunlight speeds up decomposition, increasing risk of hazardous fumes
Engineering Controls: Use fume hoods or local exhaust to keep vapor levels low
Personal Protective Equipment: Gloves made of nitrile or other chemical-resistant materials, safety goggles, long-sleeved clothing, lab coat
Respiratory Protection: If ventilation can’t keep vapor down, use a suitable cartridge respirator
Work Practices: Wash hands after use, avoid eating, drinking, or smoking near lab chemicals, contamination is quick and easy if you’re distracted
Appearance: Clear to slightly yellow liquid
Odor: Noticeably ammonia-like
Boiling Point: 184–187°C
Melting Point: -1°C
Solubility: Freely soluble in water
Flash Point: Above 85°C
Vapor Pressure: Low under normal conditions, but ventilation counts for a lot in closed rooms
pH: Basic in solution
Density: About 0.99 g/cm³
Chemical Stability: Stable under proper storage, not likely to go off on its own
Conditions to Avoid: Heat, sunlight, open flames speed up breakdown
Incompatible Materials: Strong acids, acid chlorides, strong oxidizing agents bring out violent reactions
Decomposition Products: Nitrogen oxides and other noxious gases on burning, so keep away from ignition sources
Routes of Exposure: Eyes, skin, inhalation, ingestion
Acute Effects: Direct contact irritates skin and eyes, can burn mucous membranes, breathing vapors can cause headaches or dizziness
Chronic Effects: Extended or repeated exposure might damage respiratory linings or skin
LD50 Oral (Rat): Values near 2,150 mg/kg — so not as toxic as some solvents, but still risky if mishandled
Carcinogenicity: No clear evidence of cancer risk, but avoid unnecessary exposures all the same
Aquatic Toxicity: Harmful to aquatic life, don’t dump in drains
Persistence: Readily biodegradable, but buildup can stress streams and lakes
Bioaccumulation: Unlikely due to low partition coefficient, but even small releases over time add up to bigger environmental headaches
Disposal Methods: Hand over any leftover or contaminated product to chemical waste handlers, never pour down the drain; responsible disposal keeps local water and soil cleaner
Container Handling: Rinse and triple-wash empty containers before throwing out, label waste clearly to avoid confusion
Local Regulations: Follow local hazardous waste guidelines to the letter, legal trouble is no fun on top of a chemical spill
UN Number: Not regulated for small quantities, but bulk shipping may trigger extra paperwork
Packaging: Securely seal containers, keep upright, cushion against shocks
Special Precautions: Ship with other non-reactive chemicals, always include appropriate hazard labels
Occupational Exposure Limits: Not widely established, but treat with the same caution used with other low molecular weight amines
Regulatory Status: Reportable under various state and national chemical inventories
Workplace Controls: OSHA and equivalent agencies expect written safety plans, training, and reliable PPE
Community Right-to-Know: Proper signage and inventory reporting build trust and safety for everyone in and out of the lab
