Hydrochloric Acid

HCl

IUPAC: Hydrogen chloride

CAS: 7647-01-0

Overview

Hydrochloric acid is a strong mineral acid found naturally in gastric acid. It is one of the most commonly used acids in industry and laboratory.

Composition

Element Symbol Atoms Atomic Mass
Hydrogen H 1 1.0080
Chlorine Cl 1 35.4500

Elemental Composition

Uses

  • Metal cleaning (pickling)
  • pH regulation
  • Gastric acid component
  • PVC production

Fun Facts

  • Your stomach produces about 2 liters of HCl per day to digest food

Safety

  • ⚠ Corrosive
  • ⚠ Produces toxic fumes
  • ⚠ Causes severe burns

Structure

SMILES

Cl

Properties

Type
acid
State
gas
Molar Mass
36.46 g/mol
Density
0.0015 g/cm³
Melting Point
-114.2 °C
Boiling Point
-85.1 °C
Solubility
823 g/L at 20°C

Molecular Descriptors

Exact Mass
35.9767
XLogP
0.8
TPSA
0.0 Ų
H-Bond Donors
1
H-Bond Acceptors
0
Rotatable Bonds
0
Heavy Atoms
1
Complexity
0.0

Frequently Asked Questions

What is Hydrochloric Acid?
Hydrochloric Acid (HCl) is a acid compound with the IUPAC name Hydrogen chloride.
What is the molecular weight of Hydrochloric Acid?
Hydrochloric Acid has a molar mass of 36.46 g/mol.
What state is Hydrochloric Acid at room temperature?
Hydrochloric Acid is a gas at room temperature.
Is Hydrochloric Acid organic or inorganic?
Hydrochloric Acid is classified as an inorganic compound.
What elements make up Hydrochloric Acid?
Hydrochloric Acid (HCl) is composed of Hydrogen (H), Chlorine (Cl).