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Perchloric Acid (HClO₄)

  • CAS Number: 7601-90-3
  • EINECS Number: 231-512-2
  • Chemical Formula: HClO₄
  • Molecular Weight: 100.46 g/mol
  • Appearance: Colorless to pale yellow liquid
  • Purity: 70% (common commercial grade)
  • Grade: ACS Reagent Grade
  • Packaging Specifications: Available in 25L, 50L, and 200L plastic drums or carboys
  • Density: Approximately 1.67 g/cm³
  • Melting Point: -112°C
  • Boiling Point: 203°C
  • Solubility: Miscible with water
  • pH Value: Strongly acidic

Applications:

  • Used as a strong oxidizer in chemical analysis and laboratory applications.
  • Essential in the production of perchlorate salts, such as ammonium perchlorate, a key component in rocket propellants.
  • Applied in the etching of metals and the cleaning of laboratory glassware.
  • Utilized in organic synthesis reactions and as a catalyst in various chemical processes.

Hazard Identification:

  • GHS Classification: Oxidizing liquid, Corrosive to metals, Health hazard
  • Hazard Statements:
    • H271: May cause fire or explosion; strong oxidizer.
    • H314: Causes severe skin burns and eye damage.
    • H332: Harmful if inhaled.
  • Precautionary Statements:
    • P210: Keep away from heat, sparks, open flames, and hot surfaces.
    • P280: Wear protective gloves, protective clothing, and eye protection.
    • P305+P351+P338: If in eyes, rinse cautiously with water for several minutes.

Storage and Safety:

  • Storage Conditions: Store in a cool, dry, and well-ventilated area, away from incompatible materials such as flammable substances.
  • Moisture Sensitivity: Keep tightly sealed in dry conditions to prevent moisture absorption and potential decomposition.
  • Handling: Use appropriate protective equipment (gloves, goggles, and clothing). Avoid inhalation of vapors and contact with skin and eyes.
  • Fire Safety: Use appropriate fire extinguishing agents such as CO₂ or dry powder. Keep away from heat and open flames.

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