13121-70-5

  • English Name: Tricyclohexyltin Hydroxide
  • CAS Number: 13121-70-5.
  • Molecular Formula: C₁₈H₃₄OSn.
  • Molecular Weight: 385.16.
  • IUPAC Name: Tricyclohexylhydroxystannane

Physical Properties

  • Appearance: White or pale yellow powder.
  • Melting Point: 195-198°C.
  • Boiling Point: 426.1°C at 760 mmHg.
  • Solubility:
    • Insoluble in water (<1 mg/L at 25°C).
    • Soluble in organic solvents:
      • Methanol: 37 g/L
      • Dichloromethane: 34 g/L
      • Carbon tetrachloride: 28 g/L
      • Chloroform: 216 g/L.
  • Stability: Stable in aqueous suspensions from slightly acidic (pH 6) to alkaline conditions up to 100°C; decomposes under UV light.

Chemical Properties

  • Reactivity: Acts as a non-systemic acaricide with contact action.
  • Decomposition: Decomposes under UV light.

Uses

  • Agricultural Applications: Used as a contact acaricide to control motile stages of phytophagous mites on various crops, including pome fruit, stone fruit, vines, hops, nuts, vegetables, and ornamentals.
  • Compatibility: Non-phytotoxic to deciduous fruit, vines, vegetables, and outdoor ornamentals. Slight phytotoxicity may occur on citrus fruit and greenhouse ornamentals.

Safety Information

  • Toxicity:
    • Acute oral LD₅₀: 540 mg/kg (rats), 500-1000 mg/kg (rabbits), 780 mg/kg (guinea pigs).
    • Acute dermal LD₅₀: >2000 mg/kg (rabbits).
  • Hazard Classification:
    • GHS07: Warning
    • GHS09: Environmental hazard.
  • Hazard Statements:
    • H332: Harmful if inhaled.
    • H312: Harmful in contact with skin.
    • H302: Harmful if swallowed.
    • H400: Very toxic to aquatic life.
    • H410: Very toxic to aquatic life with long-lasting effects.
  • Safety Phrases:
    • S13: Keep away from food, drink, and animal feeding stuffs.
    • S60: This material and its container must be disposed of as hazardous waste.
    • S61: Avoid release to the environment.

Environmental Concerns

  • Aquatic Toxicity: Very toxic to aquatic life, with potential long-lasting effects.
  • Banned in Several Countries: Prohibited in Sweden, the USA, the UK, Australia, and several other countries.

Storage and Handling

  • Store in a cool, dry place, away from moisture and UV light.
  • Use appropriate personal protective equipment (PPE) to avoid contact with skin and eyes.

Packing and shipping