131-52-2

  • English Name: Sodium Pentachlorophenolate
  • CAS Number: 131-52-2
  • Molecular Formula: C₆Cl₅NaO
  • Molecular Weight: 288.32 g/mol

Physical Properties

  • Appearance: White or tan crystalline powder.
  • Melting Point: >300°C.
  • Solubility: Soluble in water, ethanol, and acetone; slightly soluble in DMSO.
  • Odor: Phenolic odor.

Chemical Properties

  • Stability: Stable in dry conditions but decomposes under sunlight.
  • Reactivity: Incompatible with strong oxidizing agents.

Uses

  • Applications: Used as a fungicide, herbicide, and disinfectant in wood preservation, water-based latex paints, cellulose products, textiles, adhesives, leather, pulp, paper, and industrial waste systems.
  • Agricultural Use: Used as a contact and preemergence herbicide, and for control of the intermediate snail host of schistosomiasis.

Safety Information

  • Toxicity: Toxic by ingestion, inhalation, and skin absorption.
  • Health Hazards: Causes irritation to eyes, nose, and throat. May cause weakness, headache, dizziness, nausea, and difficulty in breathing.
  • Environmental Concerns: Not persistent in water or soil due to bacterial decomposition. May photolyze in water and adsorb to sediments.
  • Carcinogenicity: Studies indicate that pentachlorophenol is nonmutagenic and does not bioaccumulate significantly in aquatic organisms.

Handling and Storage

  • Storage: Store in a cool, dry place, away from oxidizing agents.
  • Safety Precautions: Wear appropriate protective clothing and gloves. Avoid release to the environment.

Regulatory Information

  • Hazard Codes: T+ (Very toxic), N (Dangerous for the environment).
  • UN Number: 2567 (Hazard Class: 6.1, Packing Group: II).
  • Waste Disposal: Consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Packing and shipping