This specification was technically approved by the Global Gases Committee and is the direct responsibility of the North American Gases Committee. Current edition approved by the North American Regional Standards Committee on August 27, 2001. Initially available at www.semi.org September 2001; to be published November 2001. Originally published in 1988; previously published in 1995.

Hydrogen chloride is a colorless, pungent, corrosive gas having a suffocating odor. Hydrogen chloride is heavier than air and fumes strongly in moist air. It is very soluble in water and alcohol, and also soluble in ether. While in the cylinder under pressure, hydrogen chloride is in the form of a gas over liquid. As long as liquid is present in the cylinder, the pressure will remain fairly constant. When the liquid phase is exhausted, the cylinder pressure will drop rather rapidly.

Referenced SEMI Standards
None.

Revision History
SEMI C3.35-1101 (technical revision)
SEMI C3.35-95 (technical revision)
SEMI C3.35-94 (technical revision)
SEMI C3.35-89 (technical revision)
SEMI C3.35-84 (first published)