Organic compounds, chemical formula c4h4o. Colorless liquid with special odor, for use in medicine, is an important chemical raw material. [English furan]
Translated by Google
fū nán
Ring containing four carbon atoms, and one oxygen atom of a flammable liquid compounds C 4 H 4 O, obtained from some of the pine oil
Translated by Google
No. 3
[English furan] organic compound, colorless liquid, for the manufacture of chemicals.
Translated by Google
Part I: chemical name -
Chinese chemical name: furan Chemical Name: Furan Chinese Name 2: oxygen (Miscellaneous) Mau Name 2: divinylene oxide Technical Manual Code: 452 CAS No:. 110-00-9 MF: C4H4O Weight: 68.07
Translated by Google
Part II: Composition / information -
Harmful ingredients CAS No. Furan 110-00-9
Translated by Google
Part III: Risk Overview -
Health hazards: This product has anesthetic and weak stimulation. Inhalation can cause headache, dizziness, nausea, vomiting, decreased blood pressure, respiratory failure. Chronic effects: liver and kidney damage. Explosion Hazard: This product is extremely flammable.
Translated by Google
Part IV: First aid measures -
Skin contact: Remove contaminated clothing, use soap and water thoroughly washed skin. Eye contact: Did eyelid, mobile water or saline. Doctor. Inhalation: rapidly from the scene to fresh air. Keep the airway patency. If breathing is difficult, give oxygen. If not breathing, give artificial respiration immediately. Doctor. Ingestion: drink plenty of water, induce vomiting. Doctor.
Translated by Google
Part V: Fire-fighting measures -
Hazardous characteristics: its vapor and air can form explosive mixtures case of fire, high-heat combustion caused the explosion. It can react with oxidants. Peroxide in the air can form unstable, easily cause an explosion during distillation. This product is in contact with the acid, a strong exothermic reactions can occur. In the scene, heating containers risk of explosion. Its vapor is heavier than air, will spread to the lower Department of considerable local and met the fire will fire back. Hazardous combustion products: carbon monoxide, carbon dioxide. Fire fighting methods: water cooling containers, if possible to move containers from the scene empty Department. At the scene of containers, if any discoloration or produce sound from the safety relief device must evacuate immediately. Extinguishing Media: Foam, carbon dioxide, dry, sandy soil. Water fire invalid.
Translated by Google
Part VI: ACCIDENTAL RELEASE -
Emergency treatment: rapid withdrawal from air leakage personnel to a safe area, and isolation and strict restrictions on access. Cut off the fire source. Recommended emergency personnel wearing self-Pressurized respirators to wear anti-static clothing. Cut off the source of the leak as possible. Prevent entry into sewers, flood discharge trench so restrictive space. A small leak: sand or other non-combustible material adsorption or absorption. You can also use non-flammable dispersant emulsion made of latex, wash, lotion diluted Add to the wastewater system. Large leak: to build a causeway or trenching asylum. Foam coverage, lower vapor disasters. Ex pump used to transfer tankers or exclusive collector, recycling or shipped to the waste disposal sites.
Translated by Google
Part VII: HANDLING AND STORAGE -
Handling Precautions: closed operation, full ventilation. The operator must go through specialized training, strict adherence to rules. Away from fire, heat, workplace smoking. Use explosion-proof ventilation systems and equipment. Prevent vapor leakage into the workplace air. Avoid contact with oxidizing agents, acids touch. Filling to control the flow and prevent accumulation of static electricity. Handling of light when light unloading, packaging and containers to prevent damage. Corresponding with the variety and quantity of fire equipment and emergency equipment leakage. Empty containers may be harmful residues. Storage Precautions: Usually commodity plus a polymerization inhibitor. Store in a cool, ventilated warehouse. Keep away from fire and heat. Storage temperature should not exceed 28 ℃. Stored. Packing seal, can not be in contact with air. Should oxidants, acids stored separately and avoid mixing reservoir. Explosion-proof lighting, ventilation facilities. Prohibit the use of mechanical equipment and tools easy to produce sparks. Storage areas should be equipped with spill response equipment and materials suitable host.
Translated by Google
Section 8: Exposure controls / personal protection -
Occupational Exposure Limits Chinese MAC (mg/m3): 0.5 The former Soviet Union MAC (mg/m3): 0.5 TLVTN: not established TLVWN: not established Monitoring methods: gas chromatography Engineering controls: closed production process, full ventilation. Provide safety shower and eyewash equipment. Respiratory protection: Most do not need special protection, high concentrations of exposure can wear self-absorption filter respirators (half-mask). Eye protection: general need special protection. If necessary, wear safety glasses. Physical protection: wear anti-static clothing. Hand protection: Wear rubber gloves. Other protection: no smoking scene work. After work, take a shower. Attention to personal hygiene.
Translated by Google
Part IX: Physical and chemical properties -
The main ingredients: pure Appearance: colorless liquid with a mild flavor. pH: Melting point (℃): -85.6 Boiling Point (℃): 31.4 Relative density (water = 1): 0.9514 Relative vapor density (air = 1): 2.35 Saturated vapor pressure (kPa): Not available Heat of combustion (kJ / mol): 2090.4 Critical temperature (℃): Not available Critical pressure (MPa): Not available Octanol / water partition coefficient: Not available Flash point (℃): -35 Ignition Temperature (℃): 390 Explosion limit% (V / V): 14.3 Lower explosive limit% (V / V): 1.3 Solubility: insoluble in water, soluble in acetone, benzene, soluble in alcohol, ether, etc. Most organic solvents. Volatile, flammable. Furan ring with an aromatic ring in nature, can occur halogenation, nitration, sulfonation electrophilic substitution reactions. Easy open-loop case of acid into a polymer, and thus subject to nitration or sulfonation with special reagents. Catalytic hydrogenation to tetrahydrofuran, which is important for the solvent. Preparation Method: Available mometasone heating decarboxylation. The main purposes: for organic synthesis and as a solvent.
Translated by Google
Section 10: Stability and reactivity -
Incompatibility: Strong oxidizers, acids. Conditions to avoid: light, air.
Translated by Google
Part XI: TOXICOLOGICAL INFORMATION -
Acute toxicity: LD50: Not available LC50: 120mg/m3, 1 hours (mouse inhalation)
Translated by Google
Section 12: Ecological Information -
Ecotoxicological toxic, biodegradable, non-biodegradable, bioaccumulation or bioaccumulation Other harmful effects: No information available.
Translated by Google
Section 13: Waste disposal -
Waste Disposal Method: Disposal should refer to national and local regulations. Recommended disposal by incineration.
Translated by Google
Part 14: Transportation Information -
Dangerous Goods Code: 31040 UN Number: 2389 Package Type: O51 Packing: small opening drums; ampoules ordinary wooden box; threaded glass Lid pressure bottles, plastic bottles or metal (cans) outside the ordinary wooden box. Transportation Note: Transport transport vehicles should be equipped with the appropriate variety and quantity of fire equipment and emergency equipment leakage. The best summer evening transportation. When used in the transport tank (tank) cars should be grounded chain in the partition hole to reduce static electricity shocks. Non-oxidants, acids and other mixed mixed operation. Transit should prevent exposure, rain, anti-high temperature. Stopovers should be away from fire, heat, high temperature zone. Shipment of the goods vehicle exhaust pipe must be equipped with fire retardant devices, prohibit the use of easy to produce sparks of mechanical handling equipment and tools. According to the provisions road transport routes, not in residential areas and densely populated areas. Railway transportation to prohibit humping. Forbidden to use wooden, cement and bulk transport.
Translated by Google
Section 15: Regulatory Information -
Regulatory Information Chemical Dangerous Goods Safety Management Regulations (February 17, 1987 the State Council), the implementation of Chemical Dangerous Goods Safety Management Regulations and Rules (Labor Fa [1992] No. 677), the workplace safe use of chemicals ([1996] labor Department No. 423) and other regulations for the safe use of hazardous chemicals, production, storage, transport, handling, etc. are made corresponding provisions; common hazardous chemicals classification and marking (GB 13690-92) the substance is classified as 3.1 class of low flash point flammable liquids.
Translated by Google
Part XVI: Additional Information -
References: Guidance Department: Data Audit Unit: Modify the description: Additional Information:
Translated by Google
Wikipedia Encyclopedia
funan Furan furan □ an oxygen-containing five-membered heterocyclic ring heteroatom compound formula C □ H □ O. □ furan present in a small number of oil and pine tar. Some carbohydrates in the form of intramolecular hemiacetal form a substituted furan ring system, called furan sugar. The most important is a furan derivatives furfural agricultural products. Benzofuran and dibenzofurans present in certain natural products. Furan melting point -85.6 ° C, the boiling point of 31.4 ° C; slightly soluble in water, soluble in organic solvents. It is impregnated with hydrochloric acid and the reaction sheet pine, green, which is a method of identifying furan, called loose piece reaction. Furan Structurally, a cyclic alkenyl ether, addition reactions can occur, for example, can react with maleic anhydride, the occurrence of diene synthesis. Can be hydrolyzed to the 1,4 - dicarbonyl compound, i.e., the reverse reaction of the synthesis reaction. It is much more reactive than benzene, or halogenated when nitrification, except supersede (see substitution reaction) product, it can also have the addition product. Other electron withdrawing group on the furan ring, the decrease in activity, be easier to control the reaction. E.g., 2 - furan carboxylic acid chloride in 5 then decarboxylated to give 2 - chloro-furan. Furan furfural by mass production. Furan homologues may be generally from 1,4 - dicarbonyl compound preparation dehydration, for example: □ The boiling point of THF Tetrahydrofuran 67 ° C, the relative density of 0.8892 (20/4 ° C); are important polar aprotic solvent, miscible with water in any ratio; ether and the like, can be easily formed through the explosive oxides. Some halogenated ether is not generated in the Grignard reagent in THF and the reaction can be carried out smoothly, this may be due to the cyclic ether is THF, molecular oxygen and magnesium more easily complexed (see ligand compounds). THF is easy hydrolytic ring, this reaction can be produced using 1,4 - dihydroxy compounds, dihalo compounds. Benzofuran, coumarone known, used as industrial raw materials. Rotenone is a complex of 2,3 - dihydro-benzofuran derivatives, using a long insecticide toxicity is quite strong. Some plants contain within dibenzofuran derivative, lichen acid is a highly substituted on the phenyl ring dibenzofuran derivatives. Naphthalene, phenanthrene, anthracene, etc. can also be connected in parallel with the furan derivatives formed with anthracene vat dye can be used. (Qiyi)