Hydrochloric acid

Chinese name

盐酸

English name

Hydrochloric acid

Molecular formula

HCl

Synonyms

Anhydrous hydrogen chloride

Uses

Mainly used for production of dyes, spices, drugs, chlorides and corrosion inhibitors.

Properties

Appearance and properties: Colorless pungent gas.

Melting point (°C): -114.2
Relative density (water = 1): 1.19.	Melting point (°C): -85.0
Relative density (air = 1): 1.27	Saturated vapor pressure (kPa): 4225.6 (20 °C)
Critical pressure (MPa): 8.26	Critical temperature (°C): 51.4

Solubility: Easily soluble in water.

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