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Chlorine Detection

Chlorine Detection

Chlorine

Chlorine is a halogen found in group 17 of the periodic table.
 
In its elemental form (Cl2 or "Dichlorine") under standard conditions, chlorine is a powerful oxidant and is used in bleach and disinfectants. Most chloride salts are soluble in water, thus chloride-containing minerals are usually only found abundantly in dry climates or deep underground.
 
As a common disinfectant, chlorine compounds are used in swimming pools to keep them clean and sanitary. In the upper atmosphere, chlorine-containing molecules such as chlorofluorocarbons have been implicated in the destruction of the ozone layer.
 
When it comes to chlorine detection, Air-Met can offer you excellent solutions for any application. We have a wide range of portable and fixed instruments suitable for most applications.
 
Chlorine Characteristics
Synonyms 
CAS No.7782-50-5
Chemical formulaCl2
Vapour density2.5 (air = 1)
Safe Work Australia ESTWA1 ppm (peak limitation)
STEL--
Flammable limitsLEL--
UEL--
Chemical/physical propertiesChlorine is a greenish-yellow gas at atmospheric pressure. Although non-combustible by itself, it is able to support the combustion of compounds containing hydrogen (e.g. hydrocarbons) due to its strongly oxidising nature.
Its has what is described as a suffocating odour, usually detectable above 0.2 to 0.4 ppm.
Hazardous propertiesChlorine gas is a severe irritant to the mucous membranes, conjunctiva (eyes) and respiratory system. At high concentrations, it will act as an asphyxiant by causing cramps in the muscles of the larynx and swelling in the mucous membranes.
Occurrence/UsesChlorine readily reacts with most other elements to form compounds such as sodium chloride (common salt), sodium hypochlorite (domestic bleach)(1), chlorinated hydrocarbons (chloroform, trichloroethylene etc.). Some of these substances, e.g. pesticides such as DDT, dieldrin and chlordane, present their own hazards.
Chlorine gas itself does not occur naturally but is produced industrially and transported, compressed in cylinders, to be used as a raw material in chemical plants manufacturing the above and many other substances. It is also used by direct injection:
(1) as a disinfectant in water treatment plants and public swimming pools;
(2) as a bleach in the pulp and paper industry.
Detectors availableElectrochemical (0 – 50 ppm/0 – 100 ppm)
Gas detector tube (0.05 – 40 ppm)
Suggested alarm levelsLo: 0.5 ppm
Hi: 1 ppm
Notes(1) Mixing sodium hypochlorite (domestic bleach) with an acid such as acetic acid (vinegar) can produce chlorine gas. Do NOT try this at home!

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