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Name: 2-Chloropropane Chemical Formula: C3H7Cl Common Uses: Generally found as an intermediate during chemical manufacturing, occasionally used as a solvent or laboratory reagent. Physical State: This chemical appears as a colorless, volatile liquid, with a sharp, sweet odor that easily reveals its presence in a poorly ventilated room. CAS Number: 75-29-6
Hazard Pictograms: Flammable liquid, health hazard warning for inhalation or skin contact Main Risks: Ignition risk from heat, sparks, or open flame. Vapors can irritate eyes, respiratory system, and skin. Headaches, dizziness, and potential narcosis arise if inhaled in poorly ventilated areas. High concentrations displace oxygen, putting workers at risk of drowsiness or suffocation, especially in confined spaces. Environmental Danger: Vapors from spills grow heavier than air, able to travel along floors and find ignition sources.
Primary Component: 2-Chloropropane in concentrations generally over 99%, with minor hydrocarbon or halogenated impurities possible depending on production route. Impurities: Trace presence of other chlorinated propane isomers, which still demand the same degree of care. Standard Purity Levels: Most sources provide industrial grade at or above 98% concentration.
Eye Contact: Immediate irrigation under running water, lids held open, is the fastest way to flush the chemical out. Medical care benefits anyone who feels ongoing irritation or visual changes. Skin Contact: Remove any contaminated clothing fast, and wash exposed skin thoroughly with soap and water. Prolonged contact raises risk of dermatitis or chemical burns that deserve a doctor’s attention sooner than later. Inhalation: Victims thrown off by vapors should step, or be moved, into fresh air urgently. Breathing difficulty or ongoing symptoms like coughing invite medical evaluation. Ingestion: Avoid forcing vomiting and do not give anything by mouth if the person is unconscious; seek medical care as soon as possible for assessment and monitoring.
Suitable Extinguishing Media: Use dry chemical powder, carbon dioxide, or alcohol-resistant foam, never water streams that spread the burn risk. Key Hazards During Fire: Burning releases hydrogen chloride, phosgene, and other toxic fumes that put responders in harm’s way. Protective Actions: Firefighters need self-contained breathing apparatus and proper gear to avoid toxic smoke and skin contact. Containment: Keep containers cool by spraying with water, prevent runoff from entering drains or open waterways.
Personal Protection: Use chemical splash goggles, flame-resistant gloves, and proper organic vapor respirators before working near spills. Containment and Clean-up: Ventilate the affected space well, control spark and ignition sources, and use inert absorbent for small spills. Large spill response includes bunding and possibly foam suppression. Environmental Precaution: Block entry into stormwater, sewage, or groundwater. Only waste disposal facilities with halogenated solvent permits should handle the residue.
Engineering Controls: Confined spaces or poorly ventilated areas suit this compound badly. Always work with fume extraction or in a well-ventilated hood. Storage Requirements: Use grounded, tightly sealed metal containers in cool, dry zones, away from sunlight, oxidizers, acids, or ignition sources. Handling Practices: Open containers only with non-sparking tools, and keep containers closed when not actively dispensing. Incompatibility: Combining with strong bases or powerful oxidizers invites hazardous decomposition or fire.
Exposure Limits: There’s no widely agreed occupational exposure limit, but minimizing vapor inhalation remains critical. Protective Equipment: Splash-resistant goggles, butyl or nitrile rubber gloves, and flame-retardant coveralls shield workers from both liquid and vapor hazards. Respiratory Protection: In crowded areas or during large-scale transfer, organic vapor cartridges or air-supplied respirators become essential. Workplace Controls: Good general and local ventilation keeps concentrations below harmful levels and staves off accidental exposure hazards.
Appearance: Clear, colorless liquid, quickly forming vapor at room temperature Odor: Mild, sweet, with a sharp undertone Boiling Point: Around 35-37°C Flash Point: Below room temperature, indicating a fire risk in hot weather Vapor Pressure: High for a liquid, promoting rapid evaporation Density: Slightly heavier than water, causing liquid to sink in most spills Solubility: Slight in water, but miscible with many organic solvents
Stability: Stable under normal temperature and sealed conditions, but becomes less predictable when exposed to UV light, air, or strong chemicals. Hazardous Decomposition: Decomposes violently by strong heating or when reacting with alkaline material, producing hydrogen chloride, phosgene, and corrosive or toxic vapors. Materials to Avoid: Alkalis, oxidizing agents, and open flames demand separation. Polymerization: No dangerous polymerization expected in typical storage, but decomposition products present more immediate risks.
Routes of Exposure: Main entrance ways are by inhalation or skin absorption. Health Effects: Brief exposure can cause eye, nose, and throat irritation, and high concentration sparks CNS depression with symptoms like drowsiness, headache, and impaired coordination. Long-Term Risk: Repeated exposure may damage liver or kidneys, or trigger dermatitis, but there’s little evidence for cancer in humans. Other Concerns: Long-term data remains sparse, so using the utmost care aligns with best professional practice.
Mobility in Environment: Evaporates readily and can travel hundreds of meters as a vapor outdoors, potentially affecting air quality far from original source. Toxicity to Aquatic Life: Low solubility limits direct risk, but waste streams can harm microorganisms in treatment systems. Persistence and Degradability: Degrades slowly in soil and water without sunlight or strong oxidants. Bioaccumulation: Unlikely to build up significantly in animal tissue, but continual releases stretch risks around large facilities.
Waste Handling: Needs disposal by incineration at specialized plants with air pollution controls to break down hazardous byproducts. Contaminated Packaging: Metal drums or containers should be drained, triple rinsed, and managed as hazardous waste. Legal Restrictions: Landfill dumping brings regulatory penalties—take no shortcuts with local or national hazardous waste rules.
Classification: Flammable liquid, regulated under international dangerous goods rules for both land and sea. Packaging: Only use UN-rated containers for bulk shipping, secured against leaks or collisions. Emergency Procedures: Spillage during transit threatens both health and safety, calling for immediate area evacuation and air monitoring. Labeling: All containers need proper hazard pictograms, not just paperwork, to signal immediate fire and health risks during storage or movement.
Labelling Requirements: Meets GHS labeling standards with clear hazard statements and product identifiers. National Regulations: Falls under EPA hazardous air pollutant rules in the US, and restrictions on use, emissions, and disposal under many national chemical control acts. Workplace Laws: Most regions require training, site-specific risk assessment, and recordkeeping for usage or exposure. Community Right-to-Know: Large users must notify local authorities about inventory and emergency response plans for major spills or accidents.
