Hydrogen Chloride Information

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Hydrogen Chloride

Other Names

Hydrochloric Acid; Muriatic Acid

Chemical Formula

HCl

CAS Number

7647-01-0

Industry Uses

Chemistry Laboratories; Fertilizers; Cleaners; Dyes

Health Risks

Irritation of eyes, skin, and respiratory system; Burns and Frostbite

Vapor Pressure

40.5 atm

Water Solubility

Soluble

Flammability

Non-Flammable

Odor

Pungent, irritating

Hydrogen Chloride MSDS

What is Hydrogen Chloride?

Hydrogen Chloride is a toxic, colorless gas that forms white fumes upon contact with atmospheric water vapor. Hydrogen chloride is a strong corrosive acid that is a major component of gastric acid. It is used widely in chemical laboratories as a reagent. Exposure to heat or flame will cause a container of hydrogen chloride to explode.

Hydrogen Chloride Exposure and Health Risks

Hydrogen Chloride is highly corrosive. It is very dangerous if inhaled, causing irritation to the respiratory system that can lead to coughing, choking, inflammation, and pulmonary edema. In extreme cases, exposure can cause circulatory system failure and ultimately death. Direct contact will cause severe burns, ulceration, and scarring. Chronic exposure has been reported to cause gastritis, bronchitis, dermatitis, photo-sensitization, and dental erosion.

Regulations

The table below summarizes the most-recent exposure limits.

Limit/Level

Type

Organization

1.8 ppm

AEGL-1 (8 hrs)

EPA

11 ppm

AEGL-2 (8 hrs)

EPA

26 ppm

AEGL-3 (8 hrs)

EPA

5 ppm

C

OSHA

5 ppm

C

NIOSH

Sources: NIOSH, OSHA, EPA

Measuring Hydrogen Chloride

Hydrogen chloride concentration in the air can be measured in units of parts per million (ppm). We carry portable and fixed hydrogen chloride monitors and kits. All of our hydrogen chloride products can be viewed HERE.

Contact us for help choosing the right monitor for your application