Divinylbenzene, or DVB, belongs to the aromatic hydrocarbons and comes from petroleum distillation. This compound holds importance as a raw material in the production of resins and polymers. The chemical structure includes a benzene ring carrying two vinyl groups. The molecular formula reads C10H10, and its molar mass sits at 130.19 g/mol. Chemists working with DVB often see it as a versatile ingredient, showing up in different forms like transparent liquid, waxy solid, crystalline powder, and sometimes as spherical pearls. Each appearance points to differences in purity or production methods, but the chemical backbone stays the same.
Structurally, Divinylbenzene features a benzene nucleus connected by two ethenyl (vinyl) groups, usually para- or meta-substituted. Under standard laboratory conditions, DVB appears as a colorless to slightly yellowish liquid with a pungent, aromatic odor. Solid and flake forms show up when temperatures drop or specific distillation and purification methods apply. Its chemical nature is highly reactive, especially during free-radical polymerization. Most material on the market carries both monomeric forms and a small percentage of ethylvinylbenzene as a stabilizer. Specific gravity ranges from 0.91 to 0.92 g/cm3, and boiling point comes around 195°C to 197°C. Density plays a role in material choice for engineers setting up flow systems or considering solvent compatibility. In powder and pearl forms, the shape supports rapid and uniform dispersion, valued in industries relying on consistent mixing or filtration rates.
The HS Code of Divinylbenzene used for international shipping and customs classification most commonly appears as 290290. International transport sticks with this identifier, streamlining product tracking across borders. Despite its usefulness, the compound presents hazards both in concentrated and diluted forms. High flammability, possible harmful effects on skin and eyes, and vapor inhalation risks lead factories and handlers to install careful containment and ventilation. According to several Material Safety Data Sheets, short-term exposure causes irritation and headaches, and longer-term contact could harm the nervous system. Proper training and personal protective equipment, such as chemical-resistant gloves and goggles, become standard approaches for risk reduction on production floors.
In the industrial world, Divinylbenzene matters most in polymer science. Companies blend it into copolymers, crosslinking polystyrene and similar resins. The resulting materials, like ion exchange resins or specialty filtration beads, shape water purification systems and chemical processing plants. Many filtration resins depend on DVB’s stable, rigid structure to avoid breakdown during use. The solid and granular forms provide different surface areas, which influences the absorption and exchange properties critical for chemical refinement and water softening. Outside water treatment, manufacturers use Divinylbenzene in adhesives, specialty coatings, and some pharmaceuticals due to its reliability under heat and pressure. Each choice between liquid and solid forms depends on processing preferences or finished product requirements.
Like many petroleum-derived chemicals, Divinylbenzene presents environmental questions ranging from production waste to accidental spills. Spill scenarios may contaminate soil or groundwater if not contained by absorbent materials and neutralizing agents. Disposal must follow strict hazardous waste rules, and recycling or incineration options take precedence over landfilling. Regulatory agencies, such as OSHA and the European Chemicals Agency, monitor use and enforce safety labeling due to the compound’s reactivity and possible harmful side effects. On the job, a chemical engineer or plant operator deals with detailed safety protocols—ventilation systems, routine leak checks, emergency training, and thorough storage standards. Even with its risks, Divinylbenzene stays popular because the benefits for large-scale purification or advanced plastics outpace the hazards, given sufficient precautions.
Those setting up raw material stores or laboratory supplies often keep Divinylbenzene sealed in containers resistant to organic solvents. Ambient temperature and humidity affect both shelf life and chemical stability, so dry, cool, and dark places keep the material within specification. Direct sunlight breaks down the double bonds, leading to unwanted polymerization inside unopened drums or bags. Chemical compatibility charts guide storage away from strong acids, oxidizers, or bases, which may trigger hazardous reactions. Transport requires labeling under flammable liquid regulations, and spill kits must stand close by to absorb leaks. Regular stock rotation, date logging, and visual inspections avoid surprises—anything that looks off-color, emits a strong odor, or forms crystals warrants immediate analysis and likely disposal.
Throughout industries that rely on synthetic resins or engineered polymers, Divinylbenzene brings reliable crosslinking power, thermal stability, and a unique aromatic backbone. The HS Code ensures smooth border crossings and international commerce. Despite its hazards, careful attention to chemical properties, safe handling, storage conditions, and waste management allows continued innovation in water treatment, biomedical devices, semiconductor manufacturing, and specialty chemical synthesis. For anyone new to working with DVB, learning from experienced technicians and following all published safety and environmental controls stays non-negotiable.
