Product Identification
【Product Name】o-Biphenylenemethane 芴
【Synonyms】
2,3-Benzindene
9H-Fluorene
alpha-Diphenylenemethane
Diphenylenemethane
Methane, diphenylene
o-Biphenylenemethane
【CAS】86-73-7
【Formula】C13H10
【Molecular Weight】166.22
【EINECS】201-695-5
【RTECS】LL5670000
【RTECS Class】Tumorigen; Drug; Mutagen
【Merck】13,4181
【Beilstein/Gmelin】1363491
【Beilstein Reference】4-05-00-02142
Physical and Chemical Properties
【Appearance】White leaflets. Fluorescent when impure.
【Solubility in water】Insoluble
【Melting Point】113 - 115
【Boiling Point】295
【Vapor Pressure】0.003 (25 C)
【Density】1.203 g/cm3 (20 C)
【Partition Coefficient】4.08
【Heat Of Vaporization】65.7 kJ/mol
【Heat Of Combustion】-6635 kJ/mol
【Usage】Chemical intermediate in numerous misc applications & in formation of polyradicals for resins.
First Aid Measures
【Ingestion】Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
【Eyes】Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Handling and Storage
【Storage】Store in a cool, dry place. Keep container closed when not in use.
【Handling】Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Hazards Identification
【Inhalation】May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
【Skin】May cause skin irritation.
【Eyes】May cause eye irritation.
【Ingestion】May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
【Hazards】Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will sp along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
【EC Safety Phrase】S 22 24/25
【UN (DOT)】1224
Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety ggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
【Exposure Effects】May cause cancer according to animal studies.
【Poison Class】3
Fire Fighting Measures
【Flash Point】152
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire.
【Upper exp. limit】5.5
【Lower exp. limit】0.7
【Fire Potential】Combustible.
Accidental Release Measures
【Small spills/leaks】Vacuum or sweep up material and place into a suitable disposal container. Reduce airborne dust and prevent scattering by moistening with water. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability and Reactivity
【Disposal Code】3
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
【Combustion Products】Fire may produce irritating, corrosive and/or toxic gases.
Transport Information
【UN Number】1224
【Hazard Class】3
【Packing Group】I; II; III
【HS Code】2902 90 80