Chlorine Information

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Chlorine

Other Names

Bertholite

Chemical Formula

Cl2

CAS Number

7782-50-5

Industry Uses

Water Purification, Household Cleaners, Pool and Spa Treatments, Pesticides

Health Risks

Eye, throat, and airway irritation; pulmonary edema, death; skin burns; coughing, vomiting

Vapor Pressure

6.8 atm

Water Solubility

Slightly Soluble

Flammability

Flammable

Odor

Sharp, Bleach-like

Chlorine MSDS

What is Chlorine?

Chlorine is a greenish-yellow gas, with a sharp bleach-like odor. Chlorine does not occur as a free element in nature, but is abundant in the form of chloride salts. Chlorine is commonly used as a household cleaner and disinfectant. It is also used in water purification and manufacturing of paper and cloth. Chlorine gas was used in WWI, the Iraq War, and the War in Syria for chemical warfare. Chlorine is an oxidizer which may cause or intensify fire. Chlorine can explode if confined and heated under pressure. Chlorine is also very toxic to aquatic life. Chlorine can be cooled or pressurized to its liquid form.

Chlorine Exposure and Health Risks

Chlorine is a potent irritant to the eyes, respiratory tract, and lungs, resulting in burns and redness. Coughing and vomiting are common symptoms of chlorine exposure. Exposure to chlorine can also cause bronchitis or chronic lung conditions. Long term chlorine exposure can cause pulmonary edema resulting in death. Chlorine is toxic and can be fatal if inhaled.

Regulations

The table below summarizes the most-recent exposure limits.

Limit/Level

Type

Organization

0.50 ppm

AEGL-1 (8 hrs)

EPA

2.8 ppm

AEGL-2 (10 min)

EPA

0.71 ppm

AEGL-2 (8 hrs)

EPA

50 ppm

AEGL-3 (10 min)

EPA

7.1 ppm

AEGL-3 (8 hrs)

EPA

0.5 ppm

C (15 min)

NIOSH

1 ppm

Short Term Exposure Limit

OSHA

0.5 ppm

TWA

OSHA

Sources: NIOSH, OSHA, EPA

Measuring Chlorine

Chlorine can be measured in the air or in water (dissolved) by units of parts per million (ppm). We have dissolved monitors that measure free, residual, and/or total chlorine. Many of our products have digital communication capabilities for easy monitoring and control. We carry portable, fixed, and dissolved chlorine monitors and kits, and all of our chlorine products can be viewed HERE.

Contact us for help choosing the right monitor for your application