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Acids & Bases

Hydrochloric acid (30721)

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., fuming, ≥37%, APHA: 10, assay min. 37%

Hydrochloric acid is a corrosive, strong mineral acid with many industrial uses. One of the most important applications of hydrochloric acid is in the pickling of steel, to remove rust or iron oxide scale from iron or steel before subsequent processing. Another major use of hydrochloric acid is in the production of organic compounds, such as vinyl chloride and dichloroethane for PVC. Other organic compounds produced with hydrochloric acid include bisphenol A for polycarbonate, activated carbon, and ascorbic acid, as well as numerous pharmaceutical products. Other inorganic compounds produced with hydrochloric acid include road application salt calcium chloride, nickel(II) chloride for electroplating, and zinc chloride for the galvanizing industry and battery production.

General Information

  • CAS Number
    • 7647-01-0
  • Molar Mass
    • 36.46 g/mol
  • UNSPSC Code
    • 12352301
  • Application
    • Industrial

Physical Properties

  • Melting Point/Range
    • -35 °C
  • Solubility in Water
    • Completely miscible
  • Boiling Point/Range
    • 42 °C (1,013 hPa)
  • Color
    • Colorless
  • Physical Form
    • Crystalline powder
  • Density
    • 1.190 g/cm3 (20 °C)
  • Vapor Pressure
    • 965 hPa (50 °C)
  • pH
    • > 0.1 (20 °C)
  • Odor
    • Stinging

Safety Information

  • Thermal Decomposition
    • Fire or intense heat may cause violent rupture of packages.
  • Incompatible Materials
    • Amines, Ammonia, Incompatible with strong bases and oxidizing agents, Gives off hydrogen by reaction with metals
  • Corrosivity
    • Corrosive to metals
  • Chemical Stability
    • Stable under normal conditions.
  • Flammability
    • Not applicable

International Transportation

  • Chemical Class
    • 8
  • UN Number
    • 1789
  • Harmonized System Code
    • 28061000
  • Packing Group
    • II

General Information

  • CAS Number
    • 7647-01-0
  • Molar Mass
    • 36.46 g/mol
  • UNSPSC Code
    • 12352301
  • Application
    • Industrial

Physical Properties

  • Melting Point/Range
    • -35 °C
  • Solubility in Water
    • Completely miscible
  • Boiling Point/Range
    • 42 °C (1,013 hPa)
  • Color
    • Colorless
  • Physical Form
    • Crystalline powder
  • Density
    • 1.190 g/cm3 (20 °C)
  • Vapor Pressure
    • 965 hPa (50 °C)
  • pH
    • > 0.1 (20 °C)
  • Odor
    • Stinging

Safety Information

  • Thermal Decomposition
    • Fire or intense heat may cause violent rupture of packages.
  • Incompatible Materials
    • Amines, Ammonia, Incompatible with strong bases and oxidizing agents, Gives off hydrogen by reaction with metals
  • Corrosivity
    • Corrosive to metals
  • Chemical Stability
    • Stable under normal conditions.
  • Flammability
    • Not applicable

International Transportation

  • Chemical Class
    • 8
  • UN Number
    • 1789
  • Harmonized System Code
    • 28061000
  • Packing Group
    • II
  • CAS Number : 7647-01-0
  • Molar Mass : 36.46 g/mol
  • UNSPSC Code : 12352301
  • Application : Industrial
  • Melting Point/Range : -35 °C
  • Solubility in Water : Completely miscible
  • Boiling Point/Range : 42 °C (1,013 hPa)
  • Color : Colorless
  • Physical Form : Crystalline powder
  • Density : 1.190 g/cm3 (20 °C)
  • Vapor Pressure : 965 hPa (50 °C)
  • pH : > 0.1 (20 °C)
  • Odor : Stinging
  • Thermal Decomposition : Fire or intense heat may cause violent rupture of packages.
  • Incompatible Materials : Amines, Ammonia, Incompatible with strong bases and oxidizing agents, Gives off hydrogen by reaction with metals
  • Corrosivity : Corrosive to metals
  • Chemical Stability : Stable under normal conditions.
  • Flammability : Not applicable
  • Chemical Class : 8
  • UN Number : 1789
  • Harmonized System Code : 28061000
  • Packing Group : II