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  • Styrene CAS#100-42-5
  • Styrene CAS#100-42-5
  • Styrene CAS#100-42-5
  • Styrene CAS#100-42-5
  • Styrene CAS#100-42-5

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Styrene CAS#100-42-5

Styrene CAS#100-42-5

Basic Information

Essential Monomer for Synthetic Materials：Styrene serves as a key monomer in the production of synthetic rubber, adhesives, and plastics.


Versatile Industrial Applications：It is widely used in the manufacture of styrene-based sheets and other polymer products.


Clear and Colorless Liquid：At room temperature, styrene is a stable, transparent liquid, making it easy to handle and process.


Chemical Structure Benefits：The benzene ring bonded to the vinyl group provides desirable properties for polymerization and material performance.



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product description

Product Description of Styrene CAS#100-42-5

Styrene is a widely used chemical compound with the molecular formula C8H8 and the structural formula CH2=CHC6H5. It is also known by names such as styrol, vinylbenzene, phenylethene, phenylethylene, and styreen. Its structure consists of a benzene ring attached to a vinyl group. At room temperature and pressure, styrene is a clear, colorless liquid. It is an essential monomer for the production of synthetic rubber, adhesives, and plastics, including styrene sheets.


Product Application of Styrene CAS#100-42-5

Styrene is a core monomer for synthetic rubber (SBR), plastics (polystyrene, ABS, SAN), adhesives and coatings. It forms thermoplastic elastomers (SBS, SIS) and acts as a crosslinker for polymer modification. Additional applications include styrene-acrylic emulsions, fragrances, pharmaceutical intermediates (analgesics, antitussives), dye intermediates, pesticides and metal plating additives.

Product Information

Parameters


Melting point-31 °C (lit.)
Boiling point145-146 °C (lit.)
density0.906 g/mL at 25 °C
vapor density3.6 (vs air)
vapor pressure12.4 mm Hg ( 37.7 °C)
refractive indexn20/D 1.546(lit.)
Fp88 °F
storage temp.Store at <= 20°C.
solubility0.24g/l
formLiquid
pka>14 (Schwarzenbach et al., 1993)
Specific Gravity0.909
colorColorless
Odorat 0.10 % in triacetin. sweet balsam floral plastic
Odor Typebalsamic
Odor Threshold0.035ppm
explosive limit1.1-8.9%(V)
Water Solubility0.3 g/L (20 ºC)
FreezingPoint-30.6℃
SensitiveAir Sensitive
Merck148860
BRN1071236
Henry's Law Constant(x 10-3 atm?m3/mol): 3.91 at 25 °C (static headspace-GC, Welke et al., 1998)
Exposure limitsTLV-TWA 50 ppm (～212 mg/m3) (ACGIH and NIOSH), 100 ppm (～425 mg/m3) (OSHA and MSHA); ceiling 200 ppm, peak 600 ppm/5 min/3 h (OSHA); STEL 100 ppm （～425 mg/m3) (ACGIH).
Dielectric constant2.4（25℃）
Stability:Stable, but may polymerize upon exposure to light. Normally shipped with a dissolved inhibitor. Substances to be avoided include strong acids, aluminium chloride, strong oxidizing agents, copper, copper alloys, metallic salts, polymerization catalysts and accelerators. Flammable - vapour may travel considerable distance to ignition source
InChIKeyPPBRXRYQALVLMV-UHFFFAOYSA-N
LogP2.96 at 25℃
CAS DataBase Reference100-42-5(CAS DataBase Reference)
IARC2A (Vol. 60, 82, 121) 2019
NIST Chemistry ReferenceStyrene(100-42-5)
EPA Substance Registry SystemStyrene (100-42-5)


Safety Information


Hazard CodesXn,T,F
Risk Statements10-20-36/38-40-36/37/38-39/23/24/25-23/24/25-11-48/20-63
Safety Statements23-36-26-16-45-36/37-7-46
RIDADRUN 2055 3/PG 3
OEBA
OELTWA: 50 ppm (215 mg/m3), STEL: 100 ppm (425 mg/m3)
WGK Germany2
RTECSWL3675000
Autoignition Temperature914 °F
TSCAYes
HS Code2902 50 00
HazardClass3
PackingGroupIII
Hazardous Substances Data100-42-5(Hazardous Substances Data)
ToxicityLD50 in mice (mg/kg): 660 ± 44.3 i.p.; 90 ± 5.2 i.v.
IDLA700 ppm


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