Styrene, also known as ethylene benzene, is mainly colorless and transparent oily liquid, flammable, poisonous, insoluble in water, soluble in alcohols and ethers.
The properties of styrene are stable, mainly used in the manufacture of synthetic rubber, ion exchange resins, polyether resins, plasticizers and plastics. Styrene is an organic compound formed from a hydrogen atom of benzene instead of ethylene, and the vinyl electrons are conjugated to the benzene ring, insoluble in water, dissolved in ethanol, ether, and gradually polymerized and oxidized in exposure to air.
The industry is an important monomer of synthetic resins, ion exchange resins and synthetic rubbers.
Density of styrene
The density of 0.887g Ml-1,60℃ benzene under 60℃ was 0.839g ml-1.
Styrene belongs to class two flammable liquid, the relative density is 0.907, the spontaneous combustion point is 490 degrees Celsius, the boiling point is 146 degrees Celsius.
The risk of styrene Health hazards: irritation and anesthetic effects on the mucous membranes of the eye and upper respiratory tract. Acute poisoning: high concentration, immediately caused by eye and the irritation of the mucous membrane of the upper respiratory tract, eye pain, tears, runny nose, sneezing, sore throat, cough, followed by headache, dizziness, nausea, vomiting, malaise, etc. serious person can have vertigo, gait falter.
When the eye is contaminated with styrene liquid, it can cause burns. Chronic effects: Common Neurasthenia syndrome, headache, fatigue, nausea, loss of appetite, bloating, depression, forgetfulness, finger chatter, etc. irritation to the respiratory tract, prolonged exposure sometimes causes obstructive pulmonary lesions.
The skin is rough, chapped and thickened.
Environmental hazards: serious harm to the environment, water, soil and atmosphere can cause pollution.
Explosion Hazard: This product is flammable, it is a suspected carcinogen, with irritation.
Emergency treatment of styrene leakage Emergency treatment: The rapid evacuation of the leaking contaminated areas to the safe area, and quarantine, strict restrictions on access. Cut off the ignition. It is recommended that emergency treatment personnel wear self-contained positive pressure respirator and wear anti-virus clothing. Cut off the source of the leak whenever possible.
Prevent flow into the sewer, drainage ditch and other restrictive space. Small leakage: absorbed with activated carbon or other inert material.
can also use non-combustible dispersant made of emulsion scrub, wash liquid diluted and put into the waste water system. A large number of leaks: build a dike or dig a pit for shelter. Use foam cover to reduce vapor hazard.
Use explosion-proof pump to transfer to tanker or special collector, recycle or transport to waste disposal place.
Styrene Handling Precautions Closed operation, strengthen ventilation. Operators must undergo specialized training and strictly abide by the operating procedures. It is recommended that the operator wear a filter gas mask (half mask), wear chemical safety goggles, wear anti-virus penetration overalls, wear rubber oil-resistant gloves.
Stay away from fire, heat and smoking in the workplace. Use explosion-proof ventilation systems and equipment. Prevent the vapor from leaking into the workplace air. Avoid contact with oxidizing agent, acid type. The flow rate should be controlled during filling and grounding device to prevent electrostatic buildup. When handling, the light should be lightly unloaded to prevent damage to packaging and containers. Equipped with the corresponding varieties and quantities of fire equipment and leakage emergency treatment equipment.
Empty containers may have residues of harmful substances.
Styrene Storage Precautions Usually the product is added with a inhibitor. Store in a cool, airy storeroom. Keep away from fire and heat. The reservoir temperature should not exceed 30℃. Packaging requirements sealed, not in contact with air. Should be separated from the oxidant, acid, avoid mixing storage. It should not be stored or kept in large quantities. Use explosion-proof lighting, ventilation facilities. The use of mechanical equipment and tools that are prone to sparks is prohibited.