Hydrochloric acid

July 15th, 2008 by

Hydrochloric acid (PH1)

IUPAC name
Hydrochloric acid
Other names
Muriatic acid, Spirit(s) of Salt
Identifiers
CAS number
RTECS number
MW4025000
Properties
Molecular formula
HCl in water (H2O)
Molar mass
36.46 g/mol (HCl)
Appearance
Clear colorless to
light-yellow liquid
Density
1.18g/cm3
Melting point
−27.32 °C (247 K)
38% solution.
Boiling point
110 °C (383 K),
20.2% solution;
48 °C (321 K),
38% solution.
Solubility in water
Miscible.
Acidity (pKa)
−8.0
Viscosity
1.9 mPa·s at 25 °C,
31.5% solution
Hazards
MSDS
External MSDS
MSDS
External MSDS
Main hazards
Corrosive
NFPA 704

0
3
1
COR
R-phrases
R34, R37
S-phrases
S26, S36, S45
Flash point
Non-flammable.
Related compounds
Other anions
F-, Br-, I-
Related acids
Hydrobromic acid
Hydrofluoric acid
Hydroiodic acid
Sulfuric acid
Supplementary [...]

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