Hydrogen chloride

ClHCAS 7647-01-036.46 g/mol

Open in Covalent MOL file

Properties

Molecular formula: ClH
Molar mass: 36.46 g/mol
Exact mass: 35.9767 Da
Density: 1.1 g/mL
Melting point: −114 °C
Boiling point: −85 °C
Water solubility: 823 g/L (0 °C)
logP: 0.42Crippen estimate
Polar surface area: 0.0 Å²
H-bond donors / acceptors: 0 / 0
Rotatable bonds: 0

Hazards

Danger

H314 Causes severe skin burns and eye damageSkin corrosion/irritation
H331 Toxic if inhaledAcute toxicity, inhalation

Harmonised EU classification (CLP Annex VI, index 017-002-00-2), via PubChem.

Precautionary statements

P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P403+P233, P405, P501

Identifiers

CAS number

7647-01-0

SMILES

Cl

InChIKey

VEXZGXHMUGYJMC-UHFFFAOYSA-N

InChI

InChI=1S/ClH/h1H

Weigh it out

Type any one amount. The others follow from the molar mass and density.

Names and synonyms

12 names

Hydrochloric acid
Anhydrous hydrochloric acid
Chlorohydric acid
Dilute hydrochloric acid
Muriatic acid
Hydrogen chloride (HCl)
Hydrochloric acid gas
Enplate PO 236
Chloridric acid
NSC 77365
Baume HCL
ICON Etch

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 7647-01-0. Each row opens the sheet with its composition and PDF.

Hydrochloric Acid 35–38 %Fisher Scientific Company · 2025-12-18

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Work with Hydrogen chloride

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Boiling point under vacuumAt any pressure, from its normal boiling point Isotope patternExact mass and the mass spectrum pattern

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Deuterium chloride7698-05-7

Similar compounds

Ammonium chloride12125-02-950 % similar Hydrazinium chloride2644-70-450 % similar Hydrazine, dihydrochloride5341-61-750 % similar Cyclen tetrahydrochloride10045-25-733 % similar Piperazine hydrochloride142-64-333 % similar Chloroauric acid16903-35-833 % similar Chloroplatinic acid16941-12-133 % similar Dihydrogen hexachloroiridate16941-92-733 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

Elsewhere

PubChem CAS Common Chemistry NIST WebBook Wikipedia