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Styrene Monomer SM Polymer Grade
Formula: C₆H₅CH=CH₂

Styrene Monomer

SM (Polymer Grade with TBC Inhibitor)

Styrene Monomer is a clear, colorless, oily liquid with a sweet, aromatic odor. It is the precursor to Polystyrene (PS), Expanded Polystyrene (EPS/Thermocol), and various synthetic rubbers. Ruvon supplies high-purity Polymer Grade Styrene, stabilized with TBC to prevent premature polymerization during transport.

CAS Number 100-42-5
Purity 99.6% Min
TBC Inhibitor 10 - 15 ppm

Product Overview

Styrene is an aromatic monomer. It contains a vinyl group (-CH=CH2) attached to a benzene ring. This vinyl group makes it extremely reactive and eager to form long chains (polymers). It is used to manufacture plastics that are lightweight, clear, and easy to mold.

  • High Reactivity: Polymerizes readily with heat or catalysts to form clear hard plastics (GPPS) or tough rubber (SBR).
  • Low Color: Our Polymer Grade has an APHA color of Max 10, ensuring crystal clear end products.
  • Strict TBC Levels: We maintain precise TBC levels to ensure the monomer stays liquid during storage but reacts perfectly when catalyzed.

Technical Specifications

Conforms to ASTM D-2827 Standard.

Parameter Specification Limit
Purity (GC) 99.6% Min
Appearance Clear Colorless Liquid
Polymer Content Max 10 ppm (Critical)
Inhibitor (TBC) 10 - 15 ppm (Standard)
Color (Pt-Co) Max 10
Water Content Max 200 ppm
Aldehydes (as Benzaldehyde) Max 200 ppm
Peroxides (as H₂O₂) Max 100 ppm

Mechanism: The Polymerization Trigger

[Image of styrene polymerization reaction mechanism]
Why does it need TBC?

Styrene is "restless." Its double bond wants to break and link up with other styrene molecules to turn into a solid plastic rock.

  • Heat Trigger: Heat or sunlight can trigger this reaction spontaneously inside the drum. This is dangerous and ruins the product.
  • The TBC Lock: We add Tert-Butyl Catechol (TBC). TBC acts like a "sleep inducer." It absorbs any free radicals that try to start the reaction, keeping the Styrene liquid. Note: TBC needs dissolved Oxygen to work, so Styrene tanks should not be completely sealed from air.

Industrial Applications

Polystyrene (PS)

Used to make GPPS (Clear cups, cases) and HIPS (Toys, fridge liners).

EPS (Thermocol)

Expanded Polystyrene for packaging, insulation, and protective helmets.

SBR Rubber

Styrene-Butadiene Rubber used in car tires, shoe soles, and conveyor belts.

UPR Resins

Reactive diluent in Unsaturated Polyester Resins for fiberglass boats and tanks.

ABS Plastic

Acrylonitrile Butadiene Styrene. Tough plastic for computer cases, luggage, and Lego bricks.

Styrene Acrylics

Used in emulsion paints, paper coatings, and textile binders.

Packaging Options

190 KG MS Drums

Standard packing. Must be stored in cool, covered warehouses.

Road Tanker / ISO Tank

Bulk supply (18-20 MT) for large polymer plants.

Safety & Handling Protocols

Flammable & Reactive

Styrene vapor is heavier than air and flammable (Flash Point 31°C).

  • Health: Inhalation causes drowsiness and irritation. Styrene is a suspected carcinogen. Use fume hoods.
  • Equipment: Use Copper-free equipment (Styrene can react with Copper). Use stainless steel or mild steel.
  • Emergency: In case of fire, do NOT use water jet. Use foam or dry powder.

Request a Quote for
Styrene Monomer

Polymer Grade (99.6%). Stabilized with TBC. Fresh Stock.

Minimum Order Quantity: 190 KG (1 Drum)
Full Tanker Load Available

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