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Styrene

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Identification
Molecular formula
C8H8
CAS number
100-42-5
IUPAC name
styrene
State
State

Styrene is a liquid at room temperature. It is volatile, with a tendency to readily evaporate, particularly when exposed to open air.

Melting point (Celsius)
-30.60
Melting point (Kelvin)
242.55
Boiling point (Celsius)
145.00
Boiling point (Kelvin)
418.15
General information
Molecular weight
104.15g/mol
Molar mass
104.1510g/mol
Density
0.9098g/cm3
Appearence

Styrene is a colorless to slightly yellow liquid that is highly refractive. It has a sweet smell in its pure form, though commercial samples often have a less pleasant odor due to impurities and oxidation. Styrene is notable for its ability to evaporate quickly and can become darker upon exposure to light and air due to polymerization.

Comment on solubility

Solubility of Styrene

Styrene, with the chemical formula C8H8, is known for its distinctive properties when it comes to solubility. It showcases the following key characteristics:

  • Nonpolar Nature: Styrene is a nonpolar compound, which typically leads to its limited solubility in polar solvents such as water.
  • Solvent Compatibility: Conversely, it is highly soluble in organic solvents. Common solvents include:
    • Hexane
    • Toluene
    • Chloroform
  • Temperature Influence: Solubility can be affected by temperature; generally, higher temperatures improve solubility in nonpolar solvents.

In summary, it can be said that:

“Styrene’s solubility is starkly influenced by the polarity of the solvent used.”

This means that while styrene remains largely insoluble in water due to its nonpolar characteristics, it thrives in nonpolar environments, making it a valuable compound in various industrial applications.

Interesting facts

Interesting Facts About Styrene

Styrene, also known scientifically as ethenylbenzene, is a fascinating compound that plays a critical role in both industrial applications and everyday products. Here are some captivating insights into this versatile chemical:

  • Key Building Block: Styrene is primarily used in the production of polystyrene, one of the most widely used plastics. Polystyrene can be found in products ranging from disposable cutlery and foam packaging to insulation materials.
  • Natural Occurrence: Interestingly, styrene can also be found in natural sources, such as in the rubber of some trees and in certain foods like cinnamon, which adds a unique flavor and aroma.
  • Environmental Concerns: While styrene is incredibly useful, it poses some environmental challenges. Styrene is a volatile organic compound (VOC) that can contribute to air pollution and can have harmful effects on human health, particularly if inhaled in high concentrations.
  • Historical Background: Styrene was first isolated from storax, a fragrant resin, by the chemist Eduard Simon in 1839. Its industrial production began in the early 20th century, leading to its widespread applications today.
  • Chemical Reactions: Styrene undergoes several types of reactions, such as polymerization, where thousands of styrene monomers link together to form polystyrene. This process can be initiated through heat, light, or chemical catalysts.

To quote renowned chemist Linus Pauling, "Chemistry is the study of symmetry." Styrene exemplifies this principle by exhibiting both structural and functional symmetry, making it a compound of great interest to chemists and industry professionals alike. Its ability to form complex structures and materials showcases the beauty and utility of chemical compounds in our daily lives.

In conclusion, styrene is more than just a simple chemical; it's a fundamental component that connects nature, health, and technology. Understanding its properties and impacts allows engineers, scientists, and consumers to make informed choices regarding its use.

Synonyms
STYRENE
Ethenylbenzene
100-42-5
Vinylbenzene
Phenylethylene
Benzene, ethenyl-
Styrol
Cinnamene
Phenylethene
Styrolene
Styrene monomer
Phenethylene
Vinylbenzol
Vinyl benzene
Styropol SO
Styren
Styrole
Benzene, vinyl-
Ethylene, phenyl-
Vinylbenzen
Stirolo
Styreen
Cinnamenol
Cinnamol
Vinyl-benzene
Bulstren K-525-19
Annamene
NCI-C02200
FEMA No. 3233
FEMA Number 3234
Styrol [German]
CCRIS 564
NSC 62785
Cinnaminol
HSDB 171
EINECS 202-851-5
UNII-44LJ2U959V
25086-18-4
DTXSID2021284
CHEBI:27452
AI3-24374
MAOMIN SM
44LJ2U959V
trans-Styrene-(beta)-d
MFCD00084450
NSC-62785
STYRENE-ALPHA-13C
DTXCID501284
Styrol (German)
EC 202-851-5
TTB 7302
MFCD00008612
Styrene-d5(StabilizedwithHydroquinone)
12770-88-6
Diarex hf 77
NCGC00091056-01
STYRENE-ALPHA,2,3,4,5,6-D6
STYRENE (IARC)
STYRENE [IARC]
Styreen [Dutch]
Styren [Czech]
Styrene, analytical standard
Stirolo [Italian]
Vinylbenzen [Czech]
Vinylbenzen [Dutch]
6911-81-5
Styron
Benzene, (1Z)-ethenyl-2-d-
Styrene 100 microg/mL in Methanol
styrene, monomer
Monomer, Styrene
MFCD00044231
Styrene (monomer)
CAS-100-42-5
COLESTYRAMINE IMPURITY A (EP IMPURITY)
COLESTYRAMINE IMPURITY A [EP IMPURITY]
Styrene (stabilized with 4-tert-Butylcatechol)
Vinylbenzene, inhibited
Phenylethylene, inhibited
UN2055
Styrene monomer, inhibited
ethenyl-benzene
phenyl-ethylene
p-vinyl benzene
SYN
Poly(Styrene-d8)
Styron (Salt/Mix)
Ethenylbenzene, 9CI
Styropol (Salt/Mix)
Styropor (Salt/Mix)
PhCH=CH2
STYRENE [HSDB]
Styrene, >=99%
STYRENE [MI]
Diarex hf 77 (Salt/Mix)
UN 2055 (Salt/Mix)
WLN: 1U1R
BIDD:ER0247
Styrene - stabilised with TBC
CHEMBL285235
Polystyrene, M.W. 50,000
CBA73242
NSC62785
Styrene, ReagentPlus(R), 99.9%
Tox21_113245
Tox21_200808
STL283958
Styrene 2000 microg/mL in Methanol
Styrene 5000 microg/mL in Methanol
Styrene; Phenylethylene; Vinylbenzene
AKOS000119972
FS27884
Styrene, SAJ first grade, >=99.0%
NCGC00091056-02
NCGC00091056-03
NCGC00091056-04
NCGC00091056-05
NCGC00258362-01
BP-13451
FP171383
SY061549
Styrene Solution 0.0001 Wt% in Toluene
DB-244813
NS00010820
S0651
EN300-19671
C07083
C19506
Q28917
A800199
Styrene, 99.5% stab. with 4-tert-Butylcatechol
Styrene contains 4-tert-Butylcatechol as stabilizer
F1908-0130
Z104474664
Styrene monomer, inhibited [UN2055] [Flammable liquid]
InChI=1/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H
Styrene, ReagentPlus(R), contains 4-tert-butylcatechol as stabilizer, >=99%
202-851-5
98444-30-5