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Tetrakis (Hydroxymethyl) Phosphonium Sulfate

Tetrakis Hydroxymethyl Phosphonium Sulfate 75% is a concentrated aqueous solution used as a biocide and preservative in various industrial processes. This clear, colorless liquid is known for its effectiveness in controlling microbial growth but requires careful handling due to its chemical properties.

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CAS: 55566-30-8

Characteristics:

  • Appearance: Clear, colorless to pale yellow liquid
  • Odor: Mild characteristic odor
  • Solubility: Fully soluble in water
  • pH: Acidic (typically between 3.0–5.0 for a 75% solution)
  • Density: Approx. 1.35 g/cm³
  • Boiling Point: Above 100°C (varies with concentration)
  • Stability: Stable under normal conditions but reacts with strong oxidizing agents
  • Biocidal Properties: Effective as a biocide and antimicrobial agent

Other Names:

  • THPS
  • Tetrakis Hydroxymethyl Phosphonium Sulfate
  • THPS Biocide

Safety Considerations:

  • Skin & Eye Irritation: Can cause irritation or burns; wear gloves, goggles, and protective clothing.
  • Inhalation Risk: Vapors or mist may cause respiratory irritation; use in a well-ventilated area.
  • Ingestion Hazard: Harmful if swallowed; may cause gastrointestinal irritation and toxicity.
  • Reactivity Risk: Avoid contact with strong oxidizers and bases; may release heat and gases.
  • Storage: Store in a cool, dry, well-ventilated area, away from strong acids, bases, and oxidizing agents.