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Ethene (Ethene)

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Ethen
Acetene
Ethene
Elayl
ETHYLENE
C2H4
etileno
R1150
Ethylen
Athylen
ethylene

+Expand -Stow

74-85-1

C2H4

28.053

2901210000

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Nature Description

Under normal temperature and pressure, it is colorless combustible gas with slight peculiar smell of hydrocarbon. Soluble in alcohols and ethers, insoluble in water. Lively nature. Freezing point-169.4 ℃, boiling point-103.71 ℃, relative density 0.5699(-103.8), refractive index 1.363, flash point <-66.9 ℃, critical temperature 9.90 ℃, critical pressure 4.95MPa, critical density 0.227kg/L, expansion coefficient 0.006894(-17.8 ℃), latent heat of evaporation 495.98J/g (at boiling point).

0.00126

?104℃

?169℃

-169.4℃

-100?°C

1.363

Product Applications

I. One of the most base stock in petrochemical industry. In terms of synthetic materials, it is widely used to produce polyethylene, vinyl chloride and polyvinyl chloride, ethylbenzene, styrene and polystyrene, Ethylene Propylene Rubber, etc. In terms of organic synthesis, it is widely used to synthesize ethanol, ethylene oxide, ethylene glycol, acetaldehyde, acetic acid, propionaldehyde, propionic acid and its derivatives and other basic organic synthetic source; After halogenation, it can produce chloroethylene, chloroethane and bromoethane; After oligomerization, it can produce α-olefin, and then produce higher alcohol, alkylbenzene, etc. II. Standard gas mainly used as analytical instruments for petrochemical enterprises III. Ethylene is an important organic chemical base stock, which is mainly used to produce polyethylene, Ethylene Propylene Rubber, polyvinyl chloride, etc.

Production method

Industrial ethylene production methods include petroleum hydrocarbon cracking, ethanol catalytic dehydration, coke oven gas separation, etc. Due to abundant oil and natural gas resources, mass production of ethylene has low cost and good quality. Therefore, a large amount of ethylene is mainly produced by petroleum cracking process. The ethanol catalytic dehydration method is limited to occasions where a small amount of ethylene is provided for fine chemicals.

Security

Dangerous Goods Marking： T

Safety instructions： S9: keep the container in a place with good ventilation. S33: take protective measures to prevent static electricity. S46: in case of accidental swallowing, seek doctor's advice immediately (display product container or label).

Hazardous material category code： R12;R67

Dangerous goods transportation number： UN 1962 2.1

Symbols： GHS02,GHS04,GHS07

Storage conditions： Store in a cool and ventilated warehouse for flammable gases. Keep away from fire and heat source. The temperature should not exceed 30℃. It should be stored separately with oxidant and halogen, and should not be mixed. Explosion-proof lighting and ventilation facilities are adopted. It is forbidden to use mechanical equipment and tools that are easy to generate sparks. The storage area should be equipped with leakage emergency treatment equipment.

Cautionary Statement： P210;P304+P340+P312;P377;P381;P410+P403

Signal word： Danger

Hazard Statement： H220;H280;H336