Bis(pentachlorophenyl) disulfide is a fully chlorinated aromatic disulfide. It is odourless, stable under ambient conditions, insoluble in water, but readily soluble in ethanol, ethers and ketones. The compound is supplied as a white crystalline solid with ≥98 % purity.
Key physicochemical data:
Melting point: 236–238 °C (dec.)
Predicted boiling point: >500 °C (decomp.)
Density: 1.91 g cm⁻³ (20 °C, solid)
Flash point: >200 °C
Log P (octanol/water): 8.9 (predicted)
Typical uses:
Broad-spectrum fungicide and insecticide in crop-protection formulations.
Rubber-processing accelerator and vulcanising agent.
Precursor for pentachlorophenyl sulfoxides/sulfones used as flame-retardant and pharmaceutical intermediates.
Quality specification (commercial grade):
Purity (HPLC): ≥98 %
Water content (KF): ≤0.3 %
Free thiol (as C₆Cl₅SH): ≤0.2 %
Residue on ignition: ≤0.1 %
Heavy metals: ≤20 ppm
Hazard statement:
Toxic if inhaled or swallowed (H331 + H301). Causes skin and eye irritation (H315 + H319). May cause respiratory irritation (H335). Use only with adequate ventilation, gloves and eye protection; store locked up. SDS available on request .
