IUPAC name | Hydrochloric acid |
Other names | Muriatic acid, Spirit of salt |
Identifiers | |
CAS number | [7647-01-0] |
Properties | |
Molecular formula | HCl in water (H2O) |
Molar mass | 36.46 g/mol (HCl) |
Appearance | Clear colorless to light-yellow liquid |
Melting point | 26oC (247 K) 38% solution |
Boiling point | 110oC (383 K), 20.2% solution; 48oC (321 K), 38% solution. |
Solubility in water | Miscible |
Acidity (pKa) | 8.0 |
Viscosity | 1.9 mPa s at 25oC, 31.5% solution |
Flash point | Non-flammable |