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​Methane
    Publish time 2016-11-29 09:58    

Methane, an important fuel, is the main component of natural gas, accounting for about 87%. At room temperature at standard pressure, methane is colorless and odorless. The special smell of domestic natural gas is an artificial smell added for safety, usually using methanethiol or ethanethiol.

​Methane

Methane

Chemical formula: CH4

Packing specification: 40L cylinder

Purity: 99.9%, 99.999%

Pressure: 11MPa, 9.5MPa, 9.5MPa

CAS No. : 74-82-8

    Methane, an important fuel, is the main component of natural gas, accounting for about 87%. At room temperature at standard pressure, methane is colorless and odorless. The special smell of domestic natural gas is an artificial smell added for safety, usually using methanethiol or ethanethiol.
At atmospheric pressure, methane boils at −161 °C. Gas content in the air above 5% to 15 % is highly flammable. Liquefied methane will not burn except at high pressure (usually 4-5 atmospheric pressure). Chinese national standards stipulate that methane gas cylinders are brown with white characters.

    High temperature decomposition of methane can produce carbon black, used as pigment, ink, paint and rubber additives; Both chloroform and CCl4 are important solvents. Methane is widely distributed in nature and is one of the main components of natural gas, methane and pit gas. It can be used as fuel and raw material for the manufacture of hydrogen, carbon monoxide, carbon black, acetylene, hydrocyanic acid and formaldehyde. Methane is used as standard fuel for heating value testing of water heaters and gas stoves. Production of combustible gas alarm standard gas, school air. It can also be used as a carbon source for solar cells and vapor phase chemical deposition of amorphous silicon films. And methane is used as raw material for pharmaceutical and chemical synthesis.

In addition to being used as fuel, it is widely used in the synthesis of ammonia, urea and carbon black, as well as in the production of methanol, hydrogen, acetylene, ethylene, formaldehyde, carbon disulfide, nitromethane, hydrocyanic acid and 1, 4-butanediol, etc. Methane can be chlorinated to obtain 1, 2, trichloromethane and carbon tetrachloride.
    Methane gas is widely distributed in nature and is the main component of natural gas, biogas, oil field gas and coal mine tunnel gas. It can be used as fuel and raw material for the manufacture of hydrogen, carbon black, carbon monoxide, acetylene, hydrocyanic acid and formaldehyde.

Methanation:
High purity gas use:The production of raw materials for standard gas, calibrating gas, solar cells, amorphous silicon film, b hydrocarbon, hydrogen, ammonia, carbon black, methyl compounds, carbon disulfide, hydrocyanic acid, etc. 

    Physical and chemical properties of high purity methane gas: colorless and odorless flammable gas. Slightly soluble in water, soluble in ethanol, ether, benzene, toluene, etc. Relative vapor density (air =1) : 0.6, saturated vapor pressure (kPa) : 53.32 (-168.8℃).





    Precautions for methane gas: airtight operation, comprehensive ventilation. Operators must be specially trained and strictly abide by the operating rules. Operators are recommended to wear anti-static overalls. Keep away from fire and heat. No smoking in the workplace. Use explosion-proof ventilation systems and equipment. Prevent gas leakage into the workplace air. Avoid contact with oxidizing agents.

    During transmission, cylinders and containers must be grounded and bonded to prevent static electricity. Disload lightly during handling to prevent damage of cylinders and accessories. Equip with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. Store in a cool, ventilated warehouse. Keep away from fire and heat. The storage temperature should not exceed 30℃. Should be stored separately from oxidizing agent, avoid mixed storage by all means. Explosion-proof lighting and ventilation facilities are adopted. Prohibit the use of mechanical equipment and tools that can easily produce sparks. The storage area should be equipped with leakage emergency treatment equipment.