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Benzene Detection

Benzene Detection

Benzene

Benzene, benzol or Cyclohexatriene, is an organic chemical compound with the molecular formula C6H6. It is sometimes abbreviated Ph–H.
 
Benzene is a colourless and highly flammable liquid with a sweet smell and a relatively high melting point. Because it is a known carcinogen, its use as an additive in gasoline is now limited, but it is an important industrial solvent and precursor in the production of drugs, plastics, synthetic rubber, and dyes.
 
Benzene is a natural constituent of crude oil, and may be synthesized from other compounds present in petroleum. Benzene is an aromatic hydrocarbon and the second [n]-annulene ([6]-annulene), a cyclic hydrocarbon with a continuous pi bond.
 
Benzene can be detected in either ppm or percentage range. Airmet can assist you in finding the correct benzene detector for your application. Simply use the product selector below or call us on 1800 000 744
 
Benzene Characteristics
Synonyms Phenyl hydride
CAS No. 71-43-2
Chemical formula C6H6
Vapour density 2.7 (air = 1)
Safe Work Australia ES TWA 1 ppm (Category 1 carcinogen) (1)
STEL __
Flammable limits LEL 1.2 % by volume
UEL 8.6 % by volume
Equipment group IIA
Temperature classification T1
Chemical/physical properties Benzene is a colourless, volatile liquid with a highly flammable vapour and a distinctive aromatic odour, usually detectable by smell at around 5-12 ppm.
Hazardous properties Benzene is very toxic. Prolonged exposure is seriously damaging to blood-forming tissues (e.g. bone marrow), which leads to anaemia. It also has acute narcotic and irritant effects.
It is a known carcinogen with links to cases of leukaemia and possible links to cases of lymphoma, myeloma and lung cancer.
Occurrence/Uses Due to its carcinogenic properties, its use as an industrial solvent has been largely phased out but it is still used as raw material in the synthesis of various organic chemicals and plastics. It is still a component of petrol but, due to its carcinogenicity, is limited by regulation to levels of less than 1%.
Detectors available Photoionisation (PID) (0 – 40 ppm)
Gas detector tube (0.2 – 100 ppm)
Catalytic bead (0 – 100% LEL)
Suggested alarm levels Lo: 0.5 ppm
Hi: 1 ppm
Notes (1) Established human carcinogen

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