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Chemical Name: 4-Chloro-M-Cresol
Other Names: p-Chloro-m-cresol, 4-Chloro-3-methylphenol
Molecular Formula: C7H7ClO
Description: Solid crystalline substance, with a faint medicinal smell. Recognized in several industries including pharmaceutical and cosmetic manufacturing.
Major Risks: Eye damage and irritation, skin irritation, toxic if swallowed or inhaled in significant quantities, potential for respiratory discomfort.
Warning Signs: Burning sensation in contact areas, coughing, headaches after inhalation, nausea if ingested.
Long-Term Harm: Repeated or prolonged skin exposure can cause dermatitis and increased sensitivity. Severe cases may cause organ effects.
Active Ingredient: 4-Chloro-3-methylphenol, purity usually above 98 percent in raw material form.
Key Impurities: Traces of related phenols and chloride compounds from manufacturing.
Additives: Commonly none unless in a formulated product.
Eye Contact: Immediate gentle flushing with clean water for no less than 15 minutes; contact a medical professional right after rinsing.
Skin Contact: Removal of contaminated clothing, thorough washing with soapy water, medical review for rash or burns.
Inhalation: Leave the exposure site, get fresh air, seek physician care for difficulty breathing, persistent coughing, or headaches.
Ingestion: Do not induce vomiting; rinse mouth and get to emergency medical service.
Preferred Extinguishing Tools: Dry chemical, carbon dioxide, foam, water spray for cooling.
Special Dangers: Decomposition can send toxic fumes like hydrogen chloride and carbon monoxide into the air.
Protective Tactics: Firefighters work with full breathing equipment, take positions upwind, and use cool water to prevent heated containers from bursting.
Spill Response: Move people and animals away. Shovel large pieces up and sweep finer powder with minimal dust; ventilate well. Secure site to prevent exposure.
Cleanup Tools: Use non-sparking tools, goggles, and gloves. Mop leftover stains with alcohol or detergent. Do not let substance enter soil or drains.
Waste Disposal: Place all residues in sturdy, sealed, clearly marked containers for chemical waste pickup.
Handling Common Sense: Do not eat, drink, or smoke in areas handling this material. Wear protective gear, avoid breathing the dust, and keep the working space well-ventilated.
Storage Conditions: Keep container closed, store in a cool, dry, ventilated area with protection from sunlight and strong acids or oxidizing substances. Separate from food items and incompatible materials.
Ventilation: Local and general exhaust systems limit worker exposure and airborne dust.
Protective Clothing: Nitrile gloves, chemical goggles, coated lab coats, sometimes face masks.
Respirators: Required if workplace air levels rise; fit-tested particulate respirators recommended.
Hygiene: Hand washing mandatory after any contact; change contaminated clothing promptly.
Appearance: Off-white to pale yellow crystalline solid.
Odor: Medicinal, phenolic scent.
Melting Point: Around 66 to 68 degrees Celsius.
Boiling Point: Near 246 degrees Celsius.
Solubility: Moderately dissolves in water, more so in alcohol or ether.
Vapor Pressure: Very low under standard conditions.
pH: Slightly acidic in solution.
Chemical Stability: Stays stable in closed containers under the right temperatures, breaks down over time if kept too warm or exposed to light.
Incompatibility: Strong acids, bases, and oxidizers provoke hazardous reactions.
Decomposition: Burns or overheats to make irritating, toxic smoke.
Acute Toxicity: Harmful if swallowed, inhaled, or exposed to skin in quantity. Concentrated dust or vapor irritates mucous membranes.
Short-Term Symptoms: Headaches, itchy eyes, nausea, and skin redness more frequent with poor safety practices.
Chronic Exposure: Persistent exposure raises risk of allergic reactions or skin inflammation.
Carcinogenicity: Not labeled as cancer-causing by major health organizations, but occupational hygiene limits stick for a reason.
Environmental Fate: Can pollute water if released in quantity; not easily broken down by microbes.
Aquatic Impact: Harmful for fish, aquatic invertebrates, and certain plants at relatively low concentrations.
Bioaccumulation: Builds up in organisms exposed over time.
Best Practice: Avoid all direct disposal into water, drain, or soil to protect local eco-balance.
Disposal Route: Qualified chemical waste incineration remains the best choice for safety and environmental protection.
Container Cleaning: Rinse empty packaging with appropriate solvent, collect rinse for waste.
Legal Limits: Stay within municipal or federal disposal regulations, document all quantities removed.
Packing: Tight, durable, well-sealed packaging reduces risk during transit.
Labeling: Clear hazard markings let handlers and inspectors recognize the risk easily.
General Advice: Don’t transport with food or sensitive goods; keep documentation ready during shipping.
Workplace Standards: Listed by occupational health agencies; exposure strictly limited in many regions.
Environmental Laws: Controls exist to prevent dangerous release and improper disposal.
Recordkeeping: Regular safety checks, proper labeling, and access to current MSDS recommended to meet laws and ethical obligations in any operation using this chemical.
