Thiophenol

Thiophenol (PhSH) is an organosulfur compound with the chemical formula C6H5SH. This colourless liquid, characterized by a foul smell, is the simplest aromatic thiol. The structural resemblance of thiophenol and its derivatives to phenols lies in substituting the oxygen atom in the hydroxyl group (-OH) with a sulfur atom. The prefix "thio-" indicates the presence of sulfur in the compound. In the case of thiols, this implies the replacement of the alcohol oxygen atom with a sulfur atom, making them analogous to phenols with sulfur substitution.

Properties Of Thiophenol

Appearance	Colorless liquid
Odor	Unpleasant, pungent
Density	1.0766 g/mL
Melting Point	−15 °C (5 °F; 258 K)
Boiling Point	169 °C (336 °F; 442 K)
Solubility in Water	0.08%[2]
Solubility	Most organic solvents; aqueous base
Vapor Pressure	1 mmHg (18°C)[2]
Acidity (pKa)	6.62 (H2O) 10.28 (DMSO)
Magnetic susceptibility (χ)	-70.8·10−6 cm3/mol

Applications of Thiophenol

• Synthetic Intermediates: Thiophenol serves as a versatile intermediate in organic synthesis, particularly in the preparation of various sulfur-containing compounds such as thiophenyl ethers, thioesters, and thiazoles. These compounds find applications in pharmaceuticals, agrochemicals, and materials chemistry.
• Rubber Vulcanization: Thiophenol is utilized in the vulcanization process of rubber to improve its mechanical properties, durability, and resistance to heat and chemicals. It acts as a vulcanization accelerator, promoting the cross-linking of rubber molecules and enhancing the overall performance of rubber products.
• Pesticides and Herbicides: Thiophenol derivatives are employed in the synthesis of pesticides and herbicides for agricultural applications. They act as active ingredients or intermediates in the production of crop protection agents, including fungicides, insecticides, and herbicidal chemicals.
• Flotation Agents: Thiophenol derivatives are used as flotation agents in mineral processing operations to separate valuable minerals from gangue materials. They form hydrophobic complexes with metal ions, enhancing the selectivity and efficiency of flotation processes in mineral beneficiation.
• Analytical Chemistry: Thiophenol is utilized in analytical chemistry as a derivatizing agent for the detection and quantification of various analytes. It reacts with certain functional groups (e.g., carbonyl groups) to form stable derivatives, facilitating their analysis by spectroscopic or chromatographic techniques.

Packaging Options

• Drums.

Safety Guidelines

Emphasizing safety is crucial in any workplace dealing with chemical substances, whether they are hazardous or non-hazardous. Familiarize yourself with the properties, potential risks, and proper handling procedures for each chemical encountered. For comprehensive information, consult the Safety Data Sheets (SDS) and Technical Data Sheets (TDS) provided by Relic Chemicals representatives.

When working with chemicals, prioritize safety, regardless of potential hazards. Adhere to established safety protocols, seek guidance in uncertain situations, and make the well-being of yourself and others the top priority.

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