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butane butane (C4H10), also known as n-butane, are the two have the same molecular formula (C4H10) alkane hydrocarbons collectively. Include: butyl and iso-butane (2 - methyl propane). Butane is a flammable, colorless, easily liquefied gases. Is the development of petrochemical industry, an important raw material of organic material, its use more and more attention. Butane is the same formula of two (C4H10) alkanes - n-butane and isobutane - collectively.
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Introduction to the nature of the molecular structure of physical and chemical properties Explosion Hazards
Preparation of the production process from
Note use of emergency protective measures against leakage of toxic disposal of packaging and storing profile nature of the molecular structure of physical and chemical properties Explosion Hazards
Preparation of the production process from
Note use of emergency protective measures against leakage of toxic disposal of packaging and storing
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Edit profile of this paragraph identifies the Chinese name: butane English name: Butane Formula: C4H10 Molecular Weight: 58.12 Structural formula: CAS No: 106-97-8 RTECS No: EJ4200000 HS code: UN Number: 1011 Dangerous Product Code: 21012 IMDG rules page: 2147 Edit this paragraph to the molecular structure of C atoms sp3 hybrid orbital bonding, molecular non-polar molecules. Butane English: Butane Edit this paragraph the nature of colorless flammable gas. Melting point -138.432 ° C, boiling point -0.522 ° C, liquid density 600 g / l (0 ° C, 1 atm), refractive index 1.3326 (20 ° C), critical temperature 152.0 ℃, critical pressure 3796.0 kPa, the critical volume 255mL / mol. Insoluble in water [1], soluble in alcohol, ether, chloroform and other hydrocarbons. Form explosive mixtures with air, the explosion limit of 19% to 84% (evening). Physical and Chemical Properties Appearance: colorless gas with a slight odor. Main purposes: for organic synthesis and ethylene production, instrument calibration, is also used as fuel. Melting Point: -138.4 Boiling point: -0.5 Relative density (water = 1): 0.58 Relative density (Air = 1): 2.05 Saturated vapor pressure (kPa): 106.39 / O ℃ Solubility: soluble in water, alcohol, chloroform. Critical temperature (℃): 151.9 Critical Pressure (MPa): 3.79 Heat of Combustion (kj / mol): 2653 Explosion Hazards to avoid contact with the conditions: Flammability: flammable, minimum ignition energy (mj): 0.25 Building Regulations Fire Insurance Rating: A Flash point (℃): -60 ignition temperature (℃): 287 explosive limit (V%): 1.5 upper explosive limit (V%): 8.5 hazardous characteristics: air mixture can form explosive mixtures case of fire, high-heat combustion caused the explosion. Its vapor is heavier than air and can spread to the lower Department of considerable local and met fire a return to burning. Case of high fever, increased pressure within containers, cracking and the risk of explosion. Combustion (decomposition) products: carbon monoxide, carbon dioxide. Stability: Stable incompatible materials: strong oxidizers, halogens. Hazardous Polymerization: Will not occur fire fighting methods: cut off the gas source. If you can not immediately cut off the gas source, it is not extinguished the burning gas. Water cooling containers, if possible, the container from the scene empty Department. Water spray, foam, carbon dioxide. Production Edit this paragraph
Source of the materials found in oil gas, wet gas and cracked gas, such as ethylene petrochemical naphtha cracker plant, the generation of carbon four hydrocarbons, ethylene production is about 40%; oil refinery produced by catalytic cracking unit four carbon hydrocarbons, accounting for 6% of plant capacity, the separation can be butane. L Preparation of wet gas from gas and oil separation after the separation of its condensation pressure, available with propane, butane, liquefied petroleum gas, and then separated by distillation can get propane and butane. 2, four from oil cracking fractions isolated example of carbon, pyrolysis naphtha containing medium depth of about 65% butane and heavy fractions in the pyrolysis products of butane content is lower. In recent years, some refineries use zeolite catalysts and the catalytic unit hydrocracking process, resulting in butane gas refinery capacity has increased, butene yield decline. The butane separation process is as follows. The exhaust from the catalytic cracking unit, after fractionation,
chanel handbag wholesale, separation of carbon three fractions after isobutylene and EPA, from the bottom to take the top distillation column B Mang situation, since the extractive distillation tower above 90% of the butane. Edit this paragraph for use of this product in addition to direct fuel and coolant, the large number used for making a variety of organic synthetic material, such as can be prepared by the dehydrogenation of butene and butadiene; can be prepared by the isomerization of isobutane ; can be prepared by the oxidation of maleic anhydride, acetic acid, etc.; can be prepared by halogenation of halogenated butane; nitro butane can be prepared by nitration [2]; can be prepared at high temperature catalytic disulfide; can be produced by steam reforming Hydrogen. In addition, the motor fuel blending butane can be done to control the volatile matter; also can be de-asphalting heavy oil refining agent; oil wax precipitation in the solvent; for the overflow of the secondary oil recovery agent; resin foam; sea water into fresh water, refrigerant, and Ziegler olefin polymerization solvent. Chemical reactions and use of hydrocarbons is an inert gas, because of their CC and CH bond is very strong. They are not with acid,
chanel bags for sale, alkali, metal or oxidant response. Surprisingly, they are not with acid, alkali reaction. But gasoline (octane) and not with the concentrated sulfuric acid,
black chanel purse, alkali metal or the reaction of potassium permanganate. It burns to form carbon dioxide and water vapor ignited 2C4H10 + 13O2 == == 8CO2 (g) + 10H2O If there is sufficient air supply situation, butane combustion produces carbon dioxide and water vapor. If the air supply, will produce carbon and carbon monoxide. Includes the daily use of butane for domestic liquefied petroleum gas, also used in portable butane gas lighters and the furnace as fuel. Butane burns in air chemical equation: 2C4H10 + 13O2 == lighting == 8CO2 (g) + 10H2O Edit this paragraph and note the CFC freon can cause ozone depletion, caused concern. Therefore, refrigeration systems, especially in household refrigerators and freezers have increased use of isobutane (2 - methyl propane) for, instead of using freon as a refrigerant. Also add in the spray of isobutane also replace chlorofluorocarbons. Toxic hazard exposure limits: China MAC: not established Soviet MAC: 300mg/m3 U.S. TWA: ACGIH 800ppm, 1900mg/m3 U.S. STEL: not established pathways: inhalation toxicity: LD50: LC50: 658000mg/m3 4 hours (large rat inhalation) Health Hazard: The main role of anesthesia and weak stimuli. Acute poisoning: mainly headache, dizziness, drowsiness, nausea, drunken state, can be severe coma. Chronic effects: headache, dizziness, poor sleep, easy fatigue and other symptoms. First Aid Skin contact: Eye contact: Inhalation: rapidly from the scene to fresh air. Keep warm, breathing difficulties to oxygen. Respiratory and cardiac arrest by immediate artificial respiration and heart massage. Medical treatment. Ingestion: protection engineering control: production process sealed, fully ventilated. Respiratory protection: higher concentration environment, the wear supplied air respirators. Eye protection: general need special protection be worn when exposure to high concentrations of chemical safety glasses. Protective clothing: wearing overalls. Hand protection: general need special protection, exposure to high concentrations may wear protective gloves. Other: no smoking scene work. Avoid long-term repeated exposure. Into the tank, or other high concentration operations, someone care. Rapid withdrawal from air leakage leakage disposal officers first wind, and isolated until the gas dissipated, cut off the source of fire. Recommended emergency personnel wearing self-contained breathing apparatus to wear general fire protective clothing. Cut off the gas source, spray diluted solution will use exhaust gas leakage sent an open area or the installation of appropriate nozzle burned. Drainage (indoor) or powerful ventilation (outdoor). Reusable containers can leak, and to go through treatment to remove the remaining gas. Packaging and storing dangerous categories: Class 2.1 flammable gas packaging and marking of dangerous goods: 4 Packing Group: Storage: flammable compressed gas. Store in a cool, ventilated storage room. Storage temperature should not exceed 30 ℃. Away from fire and heat. To prevent direct sunlight. Should be oxygen, compressed air, oxidants, etc. separately. Storage room lighting, ventilation and other facilities should be explosion-proof type, switch to the positions of the. Equipped with the appropriate variety and quantity of fire equipment. Have a fire and explosion when the tank storage technology measures. Summer open-air storage tanks have cooling measures. Prohibit the use of easy to produce sparks of mechanical equipment and tools. Acceptance to the attention of name ', note the date of inspection bottles, advanced with the starting position. Handle with care disposal to prevent damaged cylinders and accessories.
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