Description

Styrene CAS NO 91261-65-3 is a fundamental monomer and versatile organic compound essential for modern polymer chemistry. Its primary value lies in its ability to undergo polymerization and copolymerization, forming the backbone of numerous high-performance plastics and synthetic rubbers. This product is a critical raw material for manufacturers in the polymer, resin, and specialty chemical industries seeking reliable quality for their production processes.

Application

• Polystyrene (PS) Production: The primary use as a monomer for manufacturing general-purpose and high-impact polystyrene, used in packaging, disposable containers, and consumer goods.
• Acrylonitrile Butadiene Styrene (ABS) Resins: A key component in the production of tough, impact-resistant ABS plastics for automotive parts, electronic housings, and appliances.
• Styrene-Butadiene Rubber (SBR) & Latex: Copolymerization with butadiene to produce synthetic rubber for tires, belts, hoses, and latex for carpet backing and paper coating.
• Unsaturated Polyester Resins (UPR): Used as a reactive diluent and cross-linking agent in fiberglass-reinforced plastics for marine, automotive, and construction applications.
• Styrene-Acrylonitrile (SAN) Copolymer: Production of clear, rigid plastics with good chemical resistance for kitchenware, lenses, and battery cases.
• Expandable Polystyrene (EPS): Manufacture of lightweight foam beads for insulation, protective packaging, and food service containers.

Basic Information

Product Name	Styrene
CAS No.	91261-65-3
Molecular Formula	C8H8
Molecular Weight	104.15 g/mol
Synonyms	Ethenylbenzene; Vinylbenzene; Phenylethylene; Styrol; Cinnamene; Styrolene; Phenylethene; Styrene Monomer
EINECS	Contact for details

Quality Control

Our Styrene is produced and handled under stringent quality management protocols to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including gas chromatography (GC) for assay and impurity profiling. A Certificate of Analysis (COA) detailing specific results for each batch is provided to guarantee the product meets your technical requirements and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Recommended storage temperature is between 15-25°C. Keep away from incompatible materials such as strong acids, oxidizing agents, and peroxides. To prevent polymerization, ensure the inhibitor (typically 4-tert-butylcatechol, TBC) is present at effective levels during prolonged storage.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.5%
Color (APHA)	≤ 10
Peroxide (as H2O2)	≤ 10 ppm
Aldehyde (as Benzaldehyde)	≤ 50 ppm
Polymer	≤ 10 ppm
Inhibitor (TBC)	10 - 15 ppm
Water Content (KF)	≤ 100 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.