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Name: P-Chlorobenzenethiol
Chemical formula: C6H4ClSH
CAS number: 106-43-4
Appearance: Colorless to pale yellow liquid, strong pungent odor
Boiling point: 213°C
Solubility: Not very soluble in water, easily dissolves in organic solvents
Synonyms: 4-Chlorothiophenol
Hazards: Flammable, toxic if swallowed, inhaled or absorbed through skin
Irritation: Causes skin, eye, and respiratory tract irritation
Vapors: Harmful, can trigger headaches, nausea, and respiratory discomfort
Environmental impact: Toxic to aquatic life
Classification: Acute Toxicity (Oral), Skin Irritant, Eye Irritant, Aquatic Toxicity
Component: P-Chlorobenzenethiol
Purity: Typically above 98%
Impurities: Trace solvents or related aromatic compounds might appear in minimal quantities, but the compound usually appears pure when sourced from reliable suppliers
Inhalation: Move exposed individual to fresh air immediately; if breathing becomes difficult, seek medical attention right away
Skin contact: Remove contaminated clothing, wash affected areas thoroughly with soap and water
Eye contact: Rinse eyes gently for at least 15 minutes, keep eyelids open as much as possible, seek medical help without delay
Ingestion: Do not induce vomiting; rinse mouth and call for poison control help
Extinguishing media: Use dry chemical, foam, or carbon dioxide; water might not be effective on fires involving this chemical
Risks: Vapors are heavier than air, may travel to ignition source
Decomposition: Burning produces corrosive and toxic fumes including hydrogen chloride and sulfur oxides
Protection: Firefighters should wear full protective gear including self-contained breathing apparatus
Spill response: Evacuate area, increase ventilation, wear protective gloves, goggles, and suitable respirator
Personal precautions: Avoid direct physical contact, prevent product from entering drains or waterways
Containment: Use inert absorbent material like sand, then collect and place in suitable container for disposal
Decontamination: Wash spill site thoroughly after material has been picked up
Handling: Use only in well-ventilated areas, keep containers tightly closed, avoid breathing vapors
Storage: Store in cool, dry, well-ventilated areas away from open flames and incompatible substances like oxidizers
Segregation: Keep away from food, beverages, and animal feed to prevent accidental contamination
Precautions: Wear splash-proof eye protection and chemical-resistant gloves at all times when handling
Engineering controls: Use fume hood or exhaust ventilation when working with volatile amounts
Protective equipment: Wear impervious gloves, safety goggles, lab coat or chemical apron
Respiratory protection: Use a respirator certified for organic vapors, especially in poorly ventilated spaces
Hygiene: Wash hands and face thoroughly before breaks and at end of shift, avoid eating or drinking in use areas
State: Liquid at room temperature
Color: Colorless to pale yellow
Odor: Strong, pungent, sulfurous
Density: Around 1.3 g/cm³
Melting point: Close to -7°C
Boiling point: 213°C
Vapor pressure: Low at room temperature
Flash point: Can ignite if exposed to a flame or high heat
Solubility: Insoluble in water, easily mixes with many organic solvents
Stability: Usually stable under recommended conditions
Reactivity: Can react with strong oxidizers, acids, and bases
Hazardous decomposition: Releases toxic gases such as hydrogen chloride and sulfur oxides if combusted
Polymerization: Does not polymerize under normal conditions, but reacts dangerously with certain incompatible materials
Routes of exposure: Inhalation, skin contact, ingestion
Effects: Acute exposure leads to irritation, nausea, respiratory discomfort; can trigger allergic reactions in sensitive individuals
Symptoms: Headache, dizziness, coughing, burning eyes and nose
Chronic effects: Repeated or prolonged exposure might sensitize skin or airways
Toxicity data: Oral rat LD50 reported at approximately 285 mg/kg
Water hazard: Harmful to aquatic organisms, can cause long-term adverse effects in aquatic environments
Persistence: Not easily broken down by natural processes, tends to accumulate
Mobility: Low water solubility but can travel in surface runoff
Precautions: Prevent spillage from reaching waterways, soil, or sewer systems as it threatens local ecosystems
Disposal: Must not be poured down the drain, handled only by professionals familiar with hazardous waste
Method: Burn in a chemical incinerator equipped with afterburner and scrubber, if permitted
Containers: Any contaminated packaging should be considered hazardous and disposed of the same as the substance
Legal: Follow all local, regional, and national regulations regarding toxic waste
Classification: Regulated as a hazardous material for transport
Shipping: Package securely in approved containers; keep away from food, animal feed, and incompatible substances
Labeling: Clearly mark all containers to indicate toxicity and flammability
Emergency: In case of transport spill, responders should use protective gear and avoid inhalation of fumes
Workplace limits: Occupational exposure limits vary by country, but authorities generally recommend minimizing contact as much as possible
Inventory: Listed by major chemical regulatory agencies such as ECHA and EPA
Restrictions: May require special permits and documentation for storage and use in industrial settings
Labelling: Includes hazard pictograms, signal words, and specific risk statements on all containers
