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It can be found naturally occurring in crude oil but is usually manufactured in large amounts when benzene and ethylene are combined in an acid-catylized chemical reaction.
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Why do none of the substrates given as choices for this experiment include any with meta-directing group?
Because none of the substrates are deactivating. Both of the substrates, p-xylene and ethylbenzene, have slightly activating groups which direct ortho or para.
Main ingredients of polystyrene?
It starts with steam cracking of oil or reforming of natural gas to get a compound called Ethylene (C2H4) which is the first precursor chemical neeeded. Benzene is also used and is extracted from crude oil by catalytic action on a particular fraction of the oil stream. Benzene and Ethylene are combined to make Ethylbenzene Ethylbenzene is mixed with hot steam on a catalytic bed to make Styrene Then an initiator like benzoyl peroxide (very similar chemical to the catalyst that you mix to make Bondo putty with) is mixed with the Styrene which starts a reaction which is called a free radical polymerization which basically puts all those light gas bubbles in the liquid styrene and also causes it to turn to a solid
What causes the decolourization in the reaction mixture of ethylbenzene and bromine and dichloromethane?
H3CC(H2)-Ph + Br2 (brown) ---> H3CC(H)(Br)-Ph + HBr (colorless gas) This reaction has radical nature, and is catalyzed by peroxides, such as benzoyl peroxide. It proceeds fast at 80°C, slower at RT. In general, alpha position of alkylarenes (the carbon that is next to aromatic ring) is quite succeptible to all kinds of reactions.
Is xylene toxic?
Yes, depending on the criteria for toxicity. Like most other low-molecular weight aromatics, xylenes are moderate health hazards. While pure xylenes are not carcinogens or teratogens, commercial "mixed xylenes" contain approximately 20% ethylbenzene, which is considered to be concinogenic. However, xylenes are not "toxic," i.e. a poison, in a transportation sense and are regulated as "flammable liquids" in the USA by DOT, through the air by ICAO, and on the water by IMO.
What is an IUPAC name Butyl benzene or phenyl butane?
Benzene is NOT an IUPAC name but a common one... it's IUPAC name can be written as- cyclohexa-1,3,5-trien.
What are the characteristics of Ethylbenzene?
Ethylbenzene is a compound that is organic. It is one of the compounds used to make plastics. Ethylbenzene is a colorless liquid which boils at 277 degrees Fahrenheit. The molecular formula of Ethylbenzene is C8H10. Ethylbenzene also has an order that resembles gasoline.
What is the common name for ethylbenzene?
This is the common name. It could also be called phenylethane.
What is the boiling point of ethylbenzene?
The boiling point of 3-ethylhexane is 117,508 0C at standard pressure.
How do you separate ethyl benzene and ortho xylene using tbp distillation?
Their boiling points are to similar for distilation. Ethylbenzene B.P. 136C/ o,m,p-xylene B.P.'s 138-144C.
Why do none of the substrates given as choices for this experiment include any with meta-directing group?
Because none of the substrates are deactivating. Both of the substrates, p-xylene and ethylbenzene, have slightly activating groups which direct ortho or para.
Which household products have the highest emission of ethyl benzene?
Ethyl benzene is most commonly found in: coal tar, petroleum, ink, pesticides, and paint. Answer: You may be exposed to ethylbenzene from the use of:* Gasoline * Tobbacco products * From its use as a solvent in: - pesticides- carpet glues- varnishes- paints
What are the chemicals used by major gas companies in fracking?
During Hydrolic Fracturing or (fracking), the chemicals and substances used are, diesel fuel; Benzene; Ethylbenzene; Toluene; Xylene; Naphthalene; Polycyclic Aromatic Hydrocarbons; Methanol; Formaldehyde; Ethylene glycol; Glycol ethers; Hydrochloric acid; and Sodium Hydroxide
Does gasoline have chemicals?
Yes, gasoline is a mixture of various hydrocarbon compounds, such as benzene, toluene, ethylbenzene, and xylene, which are collectively known as BTEX compounds. It also contains additives like detergents and antioxidants. These chemicals give gasoline its characteristic properties and allow it to function as a fuel for internal combustion engines.
Main ingredients of polystyrene?
It starts with steam cracking of oil or reforming of natural gas to get a compound called Ethylene (C2H4) which is the first precursor chemical neeeded. Benzene is also used and is extracted from crude oil by catalytic action on a particular fraction of the oil stream. Benzene and Ethylene are combined to make Ethylbenzene Ethylbenzene is mixed with hot steam on a catalytic bed to make Styrene Then an initiator like benzoyl peroxide (very similar chemical to the catalyst that you mix to make Bondo putty with) is mixed with the Styrene which starts a reaction which is called a free radical polymerization which basically puts all those light gas bubbles in the liquid styrene and also causes it to turn to a solid
What is an example of cyclic hydrocarbon?
A halogenated hydrocarbon is a hydrocarbon in which one or more hydrogen atoms is replaced with a halogen atom such as chlorine or fluorine. One example of a halogenated hydrocarbon is trichloroethylene.
What causes the decolourization in the reaction mixture of ethylbenzene and bromine and dichloromethane?
H3CC(H2)-Ph + Br2 (brown) ---> H3CC(H)(Br)-Ph + HBr (colorless gas) This reaction has radical nature, and is catalyzed by peroxides, such as benzoyl peroxide. It proceeds fast at 80°C, slower at RT. In general, alpha position of alkylarenes (the carbon that is next to aromatic ring) is quite succeptible to all kinds of reactions.
What technology is involved in making styrene plastics?
Making styrene The basic unit of polystyrene is styrene, which is the product of a two-fold reaction. Ethylene and benzene, in the presence of a http://www.answers.com/topic/catalyst such as http://www.answers.com/topic/aluminum-chloride-data-page, form ethylbenzene (C8H8), which is then dehydrogenated (hydrogen is removed) at 1,112-1,202 degrees Fahrenheit (600-650 degrees Celsius) to form styrene (C8H8
