Hydrogen chloride

• Catalog No.: Hydrogen_chloride
• CAS Number: 7647-01-0
• M. F.: ClH
• M. W.: 36.46094

SYNONYMS

• IUPAC name: hydrogen chloride
• IUPAC Traditional name: hydrogen chloride
• Synonyms: Hydrochloric acid gas; Hydrochloride

DATABASE IDS

• Chemspider ID: 307
• Beilstein Number: 1098214
• EC Number: 231-595-7
• ATC CODE: A09AB03
• Unique Ingredient Identifier: QTT17582CB
• PubChem CID: 313
• MeSH Name: Hydrochloric+acid
• KEGG ID: D02057
• ATC CODE: B05XA13
• CAS Number: 7647-01-0
• CHEMBL: 1231821
• Gmelin ID: 322
• Wikipedia Title: Hydrogen_chloride
• CHEBI ID: 17883

PROPERTIES

• pKa: -7.0
• Apperance: Colorless gas
• pKb: 21.0
• Boiling Point: -85.05°C
• Std enthalpy of combustion: –95.31 kJ mol^-1
• Std enthalpy of formation: –92.31 kJ mol^-1
• Density: 1.490 g L^-1
• Heat Capacity: 0.7981 J K^-1 g^-1
• Melting Point: -114.22°C
• Std molar entropy: 186.902 J K^-1 mol^-1
• Odor: pungent
• Refractive Index: 1.0004456 (gas)
• Vapor Pressure: 4352 kPa (at 21.1 °C)
• EU Index: 017-002-00-2
• GHS Signal Word: Danger
• European Hazard Symbols: Toxic (T)
• European Hazard Symbols: Corrosive (C)
• LD50: 238 mg/kg (rat, oral)
• NFPA704:
  

  0

  3

  1

  ACID
• Risk Statements: R23, R35
• RTECS: MW4025000
• Safety Statements: S1/2, S9, S26, S36/37/39, S45
• UN Number: 1050
• GHS Hazard statements: 280, 314, 331
• GHS Precautionary statements: 261, 280, 305+351+338, 310, 410+403