Potassium Chlorate (KClO₃)

  • CAS Number: 3811-04-9
  • Chemical Formula: KClO₃
  • Appearance: White crystalline solid
  • Purity: ≥99% (Technical Grade)
  • Packaging Specifications: Available in 25kg fiber drums, 50kg steel drums, and 1-ton super sacks. Custom packaging options are available upon request.
  • Density: Approximately 2.32 g/cm³
  • Melting Point: Decomposes around 356°C
  • Boiling Point: Decomposes around 400°C
  • Solubility: Approximately 73 g/L in water at 25°C
  • pH Value: A 61.3 g/L solution in water at 25°C has a pH between 5.0 and 6.5.
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Applications:

  • Manufacture of safety match heads.
  • Production of colored smoke compositions in pyrotechnics.
  • Generation of oxygen in laboratory settings through thermal decomposition.
  • Component in explosive mixtures, though handling requires extreme caution due to sensitivity.
  • Used in chemical oxygen generators for providing breathable oxygen in confined spaces like submarines and spacecraft.
  • Serves as a bleach in the paper and textile industries to remove impurities and brighten the final product.

Hazard Identification:

  • GHS Classification: Oxidizing solid; Corrosive to metals; Health hazard
  • Hazard Statements:
    • H271: May cause fire or explosion; strong oxidizer.
    • H314: Causes severe skin burns and eye damage.
  • 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 and reducing agents.
  • Handling: Use appropriate protective equipment, including gloves, goggles, and protective clothing. Avoid inhalation of dust and contact with skin and eyes.
  • Fire Safety: In case of fire, use dry sand, dry chemical, or alcohol-resistant foam. Do not use water or CO₂ extinguishers, as potassium chlorate reacts with water and may produce oxygen, potentially intensifying the fire.

Inspection Report:

Inspection Item Unit Standard Specification Test Result
Content % ≥98.5 99.45
Appearance Colorless or white crystals or crystalline powder White crystalline powder
Moisture % ≤0.05 0.023
Chloride (as KCl) % ≤0.15 0.04
Chlorate (as KClO₃) % ≤0.45 0.089
Hypochlorite % Passes the test Passes the test
Particle Size Pass Rate % 99 100