© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Product Name: Benzene Anhydrous 99.8%
Synonyms: Benzol, Cyclohexatriene
CAS Number: 71-43-2
EC Number: 200-753-7
Recommended Use: Laboratory chemicals, manufacturing of chemicals, industrial solvent
Supplier Details: Company address, emergency phone number, and responsible department listed on packaging or invoice
Emergency Phone: National emergency hotline or poison control for chemical exposure
Hazard Class: Flammable liquid (Category 2), Carcinogen (Category 1A), Specific target organ toxicity
Label Elements: Danger, skull and crossbones symbol, flame pictogram
Hazard Statements: Highly flammable liquid and vapor, may be fatal if swallowed and enters airways, causes serious eye irritation, suspected of damaging fertility or the unborn child, causes genetic defects, may cause cancer by inhalation, causes damage to organs through prolonged or repeated exposure
Precautionary Statements: Keep away from open flame or hot surfaces, avoid breathing vapors, wash hands thoroughly after handling, use only outdoors or in a well-ventilated area, wear protective gloves, clothing, and eye/face protection
Routes of Exposure: Inhalation, Skin / Eye contact, Ingestion
Chemical Name: Benzene
Concentration: ≥ 99.8% by weight
Impurities: May contain trace amounts of toluene, ethylbenzene, xylene below threshold levels for reporting
Molecular Formula: C6H6
Molecular Weight: 78.11 g/mol
Substance Type: Pure substance
General Advice: Remove contaminated clothing and shoes, get fresh air immediately
Eye Contact: Rinse thoroughly with water for at least 15 minutes, seek medical attention promptly
Skin Contact: Wash exposed skin with soap and water, remove contaminated clothing, seek medical guidance if irritation or symptoms persist
Inhalation: Move to fresh air, keep at rest, seek medical attention if symptoms develop or breathing becomes difficult
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person, get medical help promptly
Symptoms of Exposure: Headache, dizziness, confusion, nausea, rapid heartbeat, unconsciousness at high concentrations
Suitable Extinguishing Media: Foam, dry chemical powder, carbon dioxide – do not use water as it might spread fire
Specific Hazards: Vapor is heavier than air, can travel to distant ignition sources and flash back, hazardous combustion products include carbon monoxide, carbon dioxide
Protective Equipment: Firefighters must wear self-contained breathing apparatus and full protective gear
Special Procedures: Cool containers with water spray from a safe distance, avoid allowing runoff water to enter sewers or watercourses
Personal Precautions: Evacuate area, remove ignition sources, ventilate area, avoid breathing vapors, wear personal protective equipment like gloves, goggles, and suitable respirator
Environmental Precautions: Prevent spillage from entering drains, soil, or waterways
Clean-Up Methods: Use inert absorbent material such as sand or vermiculite to soak up spill, collect material in properly labeled, closable containers for disposal, use spark-proof tools and explosion-proof equipment
Handling: Use in well-ventilated area, avoid inhalation, contact with eyes, skin, or clothing, ground and bond containers during transfer, keep away from sparks or open flame
Storage: Store in tightly closed containers in a cool, dry, well-ventilated location away from incompatible substances like oxidizers and acids, keep away from sources of ignition, maintain temperature control to prevent vapor buildup, use approved containers made from compatible materials
Occupational Exposure Limits: OSHA PEL: 1 ppm TWA; NIOSH REL: 0.1 ppm TWA
Engineering Controls: Use local exhaust ventilation, explosion-proof equipment, fume hoods, and ensure proper laboratory practice
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), splash safety goggles, flame-retardant lab coat or apron, properly fitted NIOSH-approved respirators when airborne exposure is likely
Hygiene Measures: Wash thoroughly after handling, remove contaminated clothing before entering eating areas, never eat or drink in the work area
Appearance: Colorless, clear liquid
Odor: Aromatic, sweet scent
Odor Threshold: 1.5–4.7 ppm
pH: Not applicable
Melting Point / Freezing Point: 5.5°C
Boiling Point: 80.1°C
Flash Point: -11°C (closed cup)
Evaporation Rate: 2.8 (BuAc = 1)
Flammability: Highly flammable
Upper/Lower Flammability or Explosive Limits: 1.2% – 7.8% (v/v) in air
Vapor Pressure: 94.8 mmHg at 25°C
Vapor Density: 2.7 (air = 1)
Relative Density: 0.879 (water = 1)
Solubility: Slightly soluble in water (1.8 g/L at 25°C); miscible with alcohol, ether, acetone
Partition Coefficient (n-octanol/water): 2.13
Auto-Ignition Temperature: 498°C
Decomposition Temperature: Not specified
Viscosity: 0.604 mPa·s at 20°C
Chemical Stability: Stable under recommended conditions of use and storage
Possibility of Hazardous Reactions: May form explosive mixtures with air, reacts vigorously with strong oxidizers such as nitric acid and hydrogen peroxide, can undergo polymerization or decomposition at high temperatures
Conditions to Avoid: Heat, sparks, static discharge, open flames, incompatible substances
Incompatible Materials: Strong acids, alkalis, oxidizing agents, halogens, sulfuric acid
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, possible formation of toxic fumes when heated
Acute Toxicity: May cause central nervous system depression, respiratory irritation, effects on kidneys, liver, and blood
LD50 (Oral, Rat): 930 mg/kg
LC50 (Inhalation, Rat): 44,700 mg/m3/4h
Skin Corrosion/Irritation: Causes mild skin irritation, may lead to dermatitis upon repeated or prolonged exposure
Serious Eye Damage/Irritation: Causes eye irritation
Respiratory or Skin Sensitization: Not classified as a sensitizer
Germ Cell Mutagenicity: Positive evidence from human and animal studies
Carcinogenicity: Classified as a human carcinogen (IARC Group 1, NTP, OSHA)
Reproductive Toxicity: Suspected to affect reproduction and development
STOT (Specific Target Organ Toxicity) - Repeated Exposure: May cause damage to bone marrow, hematopoietic system, impacts on blood cell production
Aspiration Hazard: May be fatal if swallowed and enters airways
Ecotoxicity: Harmful to aquatic life with long lasting effects, toxic to fish and freshwater invertebrates
Aquatic Toxicity (LC50): 5.3 mg/L (Oncorhynchus mykiss, 96 h), 10 mg/L (Daphnia magna, 48 h)
Persistence and Degradability: Readily biodegradable under aerobic conditions
Bioaccumulative Potential: Moderate bioaccumulation (log Kow = 2.13)
Mobility in Soil: Moderately mobile, can migrate into groundwater
Other Adverse Effects: Ozone depletion potential negligible, volatile organic compound contributing to photochemical smog
Waste Disposal: Incineration in a chemical incinerator equipped with afterburner and scrubber is recommended, follow national and local environmental regulations
Container Disposal: Rinse empty containers, remove labels, puncture or crush before recycling or landfill according to local authority
Special Precautions: Do not discharge residue or washwaters to sewer, avoid contamination of ground and surface water
UN Number: UN1114
UN Proper Shipping Name: Benzene
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: II
Environmental Hazards: Marine pollutant, must be transported with proper labeling and documentation
Special Precautions for Transport: Ensure secure packaging, secondary containment, avoid temperature extremes and sources of ignition during transit, follow all regulatory requirements for hazardous materials
United States: OSHA regulated as a carcinogen, SARA Title III Section 313, CERCLA reportable quantity 10 lbs, TSCA inventory listed
European Union: Classified as a CMR substance (carcinogenic, mutagenic, reprotoxic), subject to REACH restrictions
Globally Harmonized System (GHS): Danger symbol, stringent label and SDS requirements
Other Regulations: Listed by IARC, NTP, State-specific laws such as California Proposition 65, subject to workplace air monitoring and medical surveillance in many countries
