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Question: The physical and chemical properties of methanol. Answer: Methanol is a colorless, flammable, highly volatile liquid with a slight alcohol-like odor. Its specific gravity is 0.792 at 20/4°C, its boiling point is 64.5°C, and the specific gravity of its vapor is 1.11. It mixes easily with water, alcohol, ethers, and halogenated hydrocarbons, as well as with certain solvents. http://bbs.hcbbs.com/static/image/hrline/4.gif The petrochemical deep processing edition – the event to share pictures of chemical equipment has started! A vast amount of wealth, along with HaiChuan coins, is waiting for you to claim! http://bbs.hcbbs.com/thread-1760733-1-1.html Summary post for the Petrochemical Deep Processing section’s 【Daily Question】 – updated daily by the moderator. http://bbs.hcbbs.com/thread-1496481-1-1.html Summary post of weekly topics for the Petrochemical Deep Processing section~~~ Updated continuously! http://bbs.hcbbs.com/thread-1751483-1-1.html Petrochemical Sector—New Ideas for Energy Saving: The “Creative Thinking” Campaign http://bbs.hcbbs.com/thread-1666758-1-1.html Xiaomi phones available for you to claim. A thread on the Petrochemical Section for collecting various chemical technology materials http://bbs.hcbbs.com/thread-1654603-1-1.html Many prizes waiting for you to claim
A colorless, transparent, volatile liquid with an irritating odor. Soluble in water, and miscible with ethanol, ether, similar substances, benzene, and other organic solvents. Molecular weight: 32.04; melting point: -97.8°C; boiling point: 64.7°C; relative density: 0.79; relative vapor density: 1.1; critical pressure: 7.95 MPa; critical temperature: 240°C; saturated vapor pressure: 12.26 kPa (at 20°C); refractive index: 1.3288; flash point: 11°C; explosion limit: 5.5%–44.0% (by volume); autoignition temperature: 464°C; minimum ignition energy: 0.215 mJ. A toxic liquid that can cause blindness and death.
Methanol is a colorless, transparent, flammable, and volatile toxic liquid that is non-corrosive to metals at room temperature (with the exception of lead and aluminum), and it has a slight alcohol-like odor. Molecular weight: 32.04; relative density: 0.792 (20/4°C); melting point: -97.8°C; boiling point: 64.5°C; heat of combustion: 725.76 KJ/mol; flash point: 12.22°C; autoignition temperature: 463.89°C; vapor density: 1.11; vapor pressure: 13.33 KPa (100 mmHg at 21.2°C); explosive limit of vapor-air mixture: 6–36.5% (by volume). It is miscible with water, ethanol, ether, benzene, toluene, halogenated hydrocarbons, and many other organic solvents, but not miscible with petroleum ether. It burns easily when exposed to heat, open flame, or oxidizing agents. It can also cause corrosion to the paint surface of objects during evaporation. The combustion reaction is: 2CH3OH + 3O2 → 2CO2 + 4H2O
1. A colorless, transparent, volatile liquid with an irritating odor. Soluble in water, and miscible with ethanol, ether, similar substances, benzene, and other organic solvents. Molecular weight: 32.04; melting point: -97.8°C; boiling point: 64.7°C; relative density (water=1): 0.79; relative vapor density (air=1): 1.1; critical pressure: 7.95 MPa; critical temperature: 240°C; saturated vapor pressure: 12.26 kPa (20°C); refractive index: 1.3288; flash point: 11°C; explosion limit: 5.5%–44.0% (by volume); auto-ignition temperature: 464°C; minimum ignition energy: 0.215 mJ. A toxic liquid that can cause blindness and death. 2. Main uses: It is primarily used in the production of formaldehyde, fragrances, dyes, pharmaceuticals, **, antifreezes, solvents, etc.
Colorless and clear, with an irritating taste; flammable
Physical and chemical properties: A colorless, transparent, volatile liquid with an irritating odor. Soluble in water, and miscible with ethanol, ether, similar substances, benzene, and other organic solvents. Molecular weight: 32.04; melting point: -97.8°C; boiling point: 64.7°C; relative density (water=1): 0.79; relative vapor density (air=1): 1.1; critical pressure: 7.95 MPa; critical temperature: 240°C; saturated vapor pressure: 12.26 kPa (20°C); refractive index: 1.3288; flash point: 11°C; explosion limit: 5.5%–44.0% (by volume); auto-ignition temperature: 464°C; minimum ignition energy: 0.215 mJ. A toxic liquid that can cause blindness and death. Main uses: It is primarily used in the production of formaldehyde, fragrances, dyes, pharmaceuticals, **, antifreeze, solvents, and more.
Methanol is a colorless, clear liquid with a slight ethanol-like odor. It is volatile and flows easily. When burned, it produces no smoke and a blue flame. It can form azeotropic mixtures with various compounds. It is miscible with water, ethanol, ether, benzene, and other organic solvents of similar type. Its solvating power is greater than that of ethanol; it can dissolve various inorganic salts such as sodium iodide, calcium chloride, oxalic acid, copper sulfate, silver nitrate, ammonium chloride, and sodium chloride. Its relative density (d204) is 0.7915. The melting point is -97.8°C, while the boiling point is 64.7°C. The refractive index (n20D) is 1.3292. The flash point (closed cup) is 12°C. It is flammable; its vapors can form explosive mixtures with air, with an explosion limit of 6.0% to 36.5% (by volume). It is toxic
Methanol is a colorless and clear liquid. Has a slight ethanol-like odor. Volatile. Easy to flow. It burns without smoke and with a blue flame. It can form azeotropic mixtures with various compounds. It is miscible with water, ethanol, ether, benzene, similar substances, and other organic solvents. Its solubility is better than that of ethanol, and it can dissolve various inorganic salts, such as sodium iodide, calcium chloride, *ao acid an, copper sulfate, silver nitrate, ammonium chloride, and sodium chloride. Relative density (d204) 0.7915. Melting point -97.8°C. Boiling point 64.7°C. Refractive index (n20D) 1.3292. Flash point (closed cup) 12°C. Flammable; its vapor can form explosive mixtures with air, with an explosion limit of 6.0% to 36.5% (by volume). It is toxic; ingesting 15 ml can usually cause blindness, while the lethal dose is between 100 and 200 ml.
Methanol is a colorless, transparent, highly volatile, and flammable liquid. Has a slight alcohol smell. Specific gravity 0.792 (20/4°C), boiling point 64.5°C, vapor specific gravity 1.11; it is readily miscible with water, alcohol, ethers, and halogenated hydrocarbons, as well as with certain solvents.
A colorless, transparent, volatile liquid with an irritating odor. Soluble in water, and miscible with ethanol, ether, similar substances, benzene, and other organic solvents. Molecular weight: 32.04; melting point: -97.8°C; boiling point: 64.7°C; relative density (water=1): 0.79; relative vapor density (air=1): 1.1; critical pressure: 7.95 MPa; critical temperature: 240°C; saturated vapor pressure: 12.26 kPa (20°C); refractive index: 1.3288; flash point: 11°C; explosion limit: 5.5%–44.0% (by volume); auto-ignition temperature: 464°C; minimum ignition energy: 0.215 mJ. Toxic liquid that can cause blindness and death
A colorless, transparent, volatile liquid with an irritating odor. Soluble in water, and miscible with ethanol, ether, similar substances, benzene, and other organic solvents. Molecular weight: 32.04; melting point: -97.8°C; boiling point: 64.7°C; relative density (water=1): 0.79; relative vapor density (air=1): 1.1; critical pressure: 7.95 MPa; critical temperature: 240°C; saturated vapor pressure: 12.26 kPa (20°C); refractive index: 1.3288; flash point: 11°C; explosion limit: 5.5%–44.0% (by volume); auto-ignition temperature: 464°C; minimum ignition energy: 0.215 mJ. A toxic liquid that can cause blindness and death. Main uses: It is primarily used in the production of formaldehyde, fragrances, dyes, pharmaceuticals, **, antifreeze, solvents, and more.