Benzene is used mainly as an intermediate to make other chemicals, above all ethylbenzene, cumene, cyclohexane, nitrobenzene, and alkylbenzene. More than half of the entire benzene production is processed into ethylbenzene, a precursor to styrene, which is used to make polymers and plastics like polystyrene and EPS. Some 20% of the benzene production is used to manufacture cumene, which is needed to produce phenol and acetone for resins and adhesives.
The main symptoms of a chest infection can include: 1  a persistent cough. 2  coughing up yellow or green phlegm (thick mucus), or coughing up blood. 3  breathlessness or rapid and shallow breathing. 4  wheezing. 5  a high temperature (fever). 6  a rapid heartbeat. 7  chest pain or tightness.
Histoplasmosis is a fungal infection of the lungs causing muscle aches, fever, chest pain, cough, and more. Esophagitis. Esophagitis, an inflammation of the lining of the esophagus, causes chest pain, nausea, and more. Lung cancer (small cell) Small cell lung cancer is the least common type of lung cancer and can cause a cough, chest pain, and more. Pleural effusion. Pleural effusion is buildup of fluid in the pleura and can cause difficulty breathing or chest pain.