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Hydrogen Chloride

Gas Name:

Hydrogen Chloride

Chemical Formula:

HCl

Synonyms:

Hydrochloric Acid, Muriatic Acid, Chlorane

Product Uses, Sources & Applications

Hydrogen chloride, a corrosive gas that readily dissolves in water, is used in its aqueous form (hydrochloric acid) for a number of applications including:

Cleaning and refining of a variety of products such as metals, dyes and fertilizers in manufacturing facilities
Use as a chemical reagent in laboratories

Hazards

Toxicity

Short Term (15-minute STEL*):

5 ppm (CEIL)

Long-term (8-hr TWA*):

0.3

ppm

*Based on OSHA regulation. Always consult local regulations directly.

Flammability

Lower Explosive Limit (LEL):

N/A

NIOSH Pocket Guide:

View pocket guide

Physical Properties

Appearance and Odor:

Colorless to slightly yellow, with a strong, irritating odor

Relative Density (air = 1.0):

1.27

Recommendations

Sensor Type:

Electrochemical

Standard Range:

0-10 ppm or 0-30 ppm

Standard Trip Points:

1 ppm, 3 ppm, 5 ppm

Recommended Sensor Mounting Height:

12-18" AFF

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