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
Polystyrene is made up of styrene molecules. So the monomer is styrene (C8H8).
name of monomer: octene
formula: C8H16:
homologous series: alkene
The only elements in polystyrene are carbon and hydrogen.
Styrene is formed from hydrogen and carbon.
Plastics contain a fire retardant.
The atactic polystyrene is more crystalline than the syndiotactic polystyrene.
Polystyrene is not very dense.
the polystyrene film is cover all the ir range.
grapes
The main ingredients used in making paper are wood and bleach. These ingredients create the paper the way you see it today.
Expanded polystyrene foam.
Polystyrene plastic is the main component of millions of plastic. There are a number of polystyrene glues available in model and hobby stores. Almost all are a form of Butanone. I prefer to use MEK for my models. Mek is a form of industrial butanone. Super glues can also be used in polystyrene plastic.
what are the main ingredients in chile food
Polystyrene is NOT biodegradable
There are 3 main ingredients in the air that you breathe. Carbon, oxygen, and nitrogen are the 3 main elements.
what are the 5 main ingredients in Ghirardelli chocolate?
To my knowledge the main ingredients in Limca are : lettuce, tomatoes, onions, peppers and olives
Rigid polystyrene is a hard plastic Rigid polystyrene is a hard plastic
The main ingredients are: sodium percarbonate and soda ash.
Mashed potatoes and cabbage are the main ingredients in Colcannon.
Flour, salt, and eggs are the three main ingredients used to make stale pasta.
The atactic polystyrene is more crystalline than the syndiotactic polystyrene.