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Styrene

Styrene structure

CAS No:
100-42-5
Formula:
C8H8
Chemical Name:
Styrene
Synonyms:
Benzene,ethenyl-;Styrene;Ethenylbenzene;Cinnamene;Phenethylene;Phenylethene;Phenylethylene;Styrol;Styrole;Styrolene;Vinylbenzene;Vinylbenzol;Styropol SO;NSC 62785;TTB 7302;Maomin SM;S 0095;STC;Styrolution PS 124N;BYX 6;EM 50;M 00247;PS 124N;79637-11-9;1161074-30-1;1198090-46-8;1453489-93-4;1646200-96-5;2015955-51-6;2351150-23-5;2576469-81-1
Categories:
Cosmetic Ingredient > Dissolving Agent

Description

Styrene is a colorless or yellow, sweet odor liquid with a penetrating odor. It is produced during alkylation of benzene with ethylene. It is highly reactive and polymerizes rapidly with a violent explosive reaction. This demands proper handling, transportation, and storage by adding polymerization inhibitors in adequate quantities during these operations. Styrene monomer has been extensively used in the manufacture of chemical intermediates, fi lling components, plastics, styrene,styreen and s

Styrene Basic Attributes

Molecular Weight：

104.15

Exact Mass：

104.15

BRN：

1071236

EC Number：

202-851-5

HScode：

2902 50 00

Characteristics

PSA：

XLogP3：

3.0

Appearance：

Colorless Liquid

Density：

0.9060 g/cm³ @ Temp: 20 °C

Melting Point：

-31 °C

Boiling Point：

145 °C

Flash Point：

88 °F

Refractive Index：

n 20/D 1.546(lit.)

Water Solubility：

H2O: 0.3 g/L (20 ºC)

Storage Conditions：

2-8°C

Vapor Pressure：

12.4 mm Hg ( 37.7 °C)

Vapor Density：

3.6 (vs air)

Toxicity：

Oral-Rat LD50: 2650 mg/kg; Oral-Mouse LD50: 316 mg/kg

Flammability characteristics：

In case of fire, high temperature, oxidant is more flammable; burning produces irritating smoke

Explosive limit：

1.1-8.9%(V)

Odor：

Characteristic, sweet, balsamic, almost floral odor that is extremely penetrating

Safety Information

Packing level：

III

Hazard category：

Transport codes：

UN 2055 3/PG 3

wgk germany：

hazard class code：

10-20-36/38-40-36/37/38-39/23/24/25-23/24/25-11-48/20-63

safety instructions：

23-36-26-16-45-36/37-7-46

RTECS Number：

WL3675000

Marks：

Xn,T,F

Storage features：

Storehouse ventilated at low temperature and dry; stored separately from oxidants and acids; should not be stored for a long time to prevent polymerization

Explosive characteristics：

There is a danger of explosion when mixed with air or uncontrolled in case of peroxide polymerization

Stability/Shelf Life：

Stable, but may polymerize upon exposure to light. Normally shipped with a dissolved inhibitor. Flammable - vapour may travel considerable distance to ignition source

Precautionary statement(s)：

P201-P210-P261-P280-P304 + P340 + P312-P308 + P313

Hazard Statements：

H226-H315-H319-H332-H361d-H372

Toxicity

Toxicity class：

moderately toxic

Styrene Use and Manufacturing

Methods of Manufacturing

Ethylbenzene is used as the raw material. In the presence of T-315 platinum catalyst mainly made of iron trioxide (or aluminum), dehydrogenation at a temperature of 550-560 ℃ produces styrene, which is purified by distillation to obtain more than 99.5% refined Styrene.

Uses

Used in the manufacturing plastics; synthetic rubber; resins; insulator.

Computed Properties

Molecular Weight:104.15
XLogP3:2.9
Rotatable Bond Count:1
Exact Mass:104.062600255
Monoisotopic Mass:104.062600255
Heavy Atom Count:8
Complexity:68.1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Benzene

Downstream Products

Polystyrene

Price Analysis

Make your Styrene purchase based on the price and market insights! ECHEMI provides professional market insights with prices for you to make a better choice. Learn more on Styrene prices .

Data: 2026-10-16
Price: 10864.00Yuan/mt
Change: 376.0

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