STYRENE - (100-42-5)

pagpapakilala

pangalan: styrene; vinyl benzene; phenylethene
* IUPAC
CAS Number: 100-42-5
Chemical Formula: C8H8 or C6H5CHCH2
Molar Mass: 104.14912 g
mass Percent: C 92.257 %; H 7.7422 % 
isomers:  cubane  •  barrelene

pag-uuri

• organic • alkene • masamyo

Paggamit / Function

• "Styrene, used extensively in plastics and rubber manufacture..." 1

• "Manuf[acturing] plastics; synthetic rubber; resins; insulator." 2

• "A copolymer of styrene and butadiene, made with a 1-to-3 ratio of these raw materials, is the most important synthetic rubber now made; more than about 1.3×109 kg of styrene-butadiene rubber (SBR) is produced each year in the United States for making tires." 3

pisikal na Katangian

Temperatura ng pagkatunaw:*
-31°C 4 = 242.15 K = -23.8°F
-30.6°C 5 = 242.55 K = -23.08°F
-31°C 6 = 242.15 K = -23.8°F
Punto ng pag-kulo:*
146°C 7 = 419.15 K = 294.8°F
145°C 4 = 418.15 K = 293°F
146°C 6 = 419.15 K = 294.8°F
densidad (g/cm3):
0.9060 at 20°C 4
* - 1 atm pressure

solubility

ng husay:
hindi malulutas:  • 7

bonding

Double Bonds: 4
triple Bonds: 0
Sigma Bonds: 16
Pi Bonds: 4
total: 20
carboxyl Grupo: 0
hydroxyl Grupo: 0
paghahalo ng lahi: all carbons are sp2 hybridized
bonding: polar covalent
Ionic Character: 10.61 %

termokimika

ΔHf° (ℓ): 24.83 kcal/mol 8 = 103.89 kJ/mol
ΔHf° (g): 35.22 kcal/mol 8 = 147.36 kJ/mol
S° (ℓ): 56.78 cal/(mol•K) 9 = 237.57 J/(mol•K)
S° (g): 82.48 cal/(mol•K) 9 = 345.10 J/(mol•K)
ΔGf° (ℓ): 48.37 kcal/mol 10 = 202.38 kJ/mol
ΔGf° (g): 51.10 kcal/mol 10 = 213.80 kJ/mol
The heat of combustion is the amount of heat released when one mole of a substance undergoes combustion according to the general reaction equation:
CxHyOz + 0.25(4x+y-2z) O2 (g) → x CO2 (g) + 0.5y H2O (ℓ)

ΔHcomb° (ℓ): -1050.49 kcal = -4395.28872 kJ
ΔHcomb° (g): -1060.88 kcal = -4438.76048 kJ

reaksyon

Dehydrogenation of ethylbenzene:


Impormasyong pangkaligtasan

NFPA 704 Ratings:
Health: 2 - Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury.
Flammability: 3 - Liquids and solids that can be ignited under almost all ambient temperature conditions. Liquids having a flash point below 23°C (73°F) and having a boiling point at or above 38°C (100°F) or having a flash point between 23°C (73°F) and 38°C (100°F).
Reactivity: 2 - Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water.

Para sa karagdagang impormasyon

Wikipedia
Journals:
Anders Carlsson, Scand. J. Work Environ. Health 7, 45-50 (1981)
U. Flodin, K. Ekberg and L. Andersson, Brit. J. Ind. Med. 46, 805-808 (1989)
Hannu Norppa and Harri Vainio, Scand. J. Work Environ. Health 9, 108-114 (1983)
Hannu Härkönen, Antti Lehtniemi and Antero Aitio, Scand. J. Work Environ. Health 10, 59-61 (1984)

Pinagmumulan

(1) - Estok, George K. Organic Chemistry: A Short Text; W.B. Saunders: Philadelphia, 1959; p 59.
(2) - The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals, 13th ed.; Budavari, S.; O'Neil, M.J.; Smith, A.; Heckelman, P. E.; Kinneary, J. F., Eds.; Merck & Co.: Whitehouse Station, NJ, 2001; entry 8944.
(3) - Kotz and Treichel. Chemistry & Chemical Reactivity, 4th ed.; Thomson Brooks/Cole: Belmont, CA, 1999; p 524.
(4) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 3-46.
(5) - Dean, John A. Lange's Handbook of Chemistry, 11th ed.; McGraw-Hill Book Company: New York, NY, 1973; p 7-349.
(6) - Estok, George K. Organic Chemistry: A Short Text; W.B. Saunders: Philadelphia, 1959; p 58.
(7) - Shriner, Ralph L., Fuson, Reynold C., and Curtin, David Y. The Systematic Identification of Organic Compounds, 4th ed.; John Wiley & Sons: New York, 1962; p 315.
(8) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:90.
(9) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:90.
(10) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:90.