Pentachlorobenzenethiol

Linshang Chemical

Specifications

HS Code

121427

Chemical Formula C6HCl5S
Molecular Weight 282.35 g/mol
Appearance Solid (presumably, based on similar compounds)
Physical State At Room Temp Solid
Solubility In Water Low (organic sulfur - containing aromatic halide, generally hydrophobic)
Solubility In Organic Solvents Soluble in non - polar or slightly polar organic solvents like benzene, toluene
Vapor Pressure Low (due to high molecular weight and relatively strong intermolecular forces)
Odor Likely has a pungent, unpleasant odor like many sulfur - containing and chlorinated organic compounds

As an accredited Pentachlorobenzenethiol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage
Packing 100g of Pentachlorobenzenethiol packaged in a sealed, chemical - resistant container.
Storage Pentachlorobenzenethiol should be stored in a cool, dry, well - ventilated area, away from heat sources and open flames. Keep it in a tightly closed container to prevent vapor leakage. Store it separately from oxidizing agents and incompatible substances. Since it is likely toxic, ensure the storage area is restricted and properly labeled for safety.
Shipping Pentachlorobenzenethiol is a chemical. Shipping should follow strict regulations. It must be properly packaged in suitable containers to prevent leakage. Ship via carriers approved for hazardous chemicals, with proper labeling and documentation.
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Pentachlorobenzenethiol Pentachlorobenzenethiol
General Information
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Frequently Asked Questions

As a leading Pentachlorobenzenethiol supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

What is the chemistry of Pentachlorobenzenethiol?
Pentachlorobenzenethiol, that is, pentachlorobenzene mercaptan, which has unique chemical properties. Its appearance is often crystalline solid, and the color is white or nearly white. PeCB mercaptan has a strong pungent odor, poor stability in the air, and is easy to react with many substances.
From the perspective of chemical activity, its thiol base electrode is active. Because the electronegativity of sulfur atoms is slightly lower than that of oxygen atoms, and the radius is larger, the hydrogen atoms in the thiol group are more easily dissociated and acidic, and can react with bases to form corresponding salts. For example, when reacted with sodium hydroxide, sodium pentachlorobenzene mercaptan can be formed with water.
In the field of organic synthesis, pentachlorobenzene mercaptan is often used as a nucleophile. Its sulfur atoms are rich in lone pair electrons and have strong nucleophilic properties to electron-deficient atoms or groups. If they encounter halogenated hydrocarbons, sulfur atoms will attack the carbon atoms in halogenated hydrocarbons that are connected to halogens, and the halogen atoms will leave to form new sulfur-containing organic compounds. This is a common method for building carbon-sulfur bonds.
However, pentachlorobenzene mercaptan has certain toxicity and environmental persistence due to its multiple chlorine atoms. In the environment, it is difficult to degrade and will accumulate in organisms, posing a potential threat to ecosystems and biological health. Therefore, when using and handling, it is necessary to follow strict safety regulations and environmental protection requirements to prevent harm to the environment and people.
What are the physical properties of Pentachlorobenzenethiol?
The physical properties of pentachlorothiophenol are particularly important, and it is related to many uses and characteristics. The appearance of this substance is often white to gray-white powder, delicate and uniform. It looks like frost and snow, and the texture is light. Its smell is specific. Although it is not rich and fragrant, it is unique. If you smell it, you will know its uniqueness.
As for the melting point, it is about 140-142 ° C. At this temperature, the solid state of pentachlorothiophenol gradually melts, like melting snow, from a solid state to a flowing shape. Its melting point is a key guide in many processes such as chemical operations and material processing.
Furthermore, pentachlorothiophenol is insoluble in water. In the water liquid, this substance seems to be independent of the world, and it does not blend with water, and it is distinct from each other. However, it can dissolve well in organic solvents, such as benzene, toluene, acetone, etc., just like fish entering water, it does not blend well. This difference in solubility provides a variety of methods for separation, purification, preparation and other processes, so that operators can make good use of various solvents according to their characteristics to achieve the desired effect.
In addition, the density of pentachlorothiophenol is also an important physical property. Although its value often varies slightly due to factors such as preparation method and purity, it is generally maintained within a certain range. This density characteristic needs to be carefully considered in storage, transportation and other aspects to ensure safety. And when participating in chemical reactions, density also affects the mixing ratio of substances, reaction rate and other factors, which is a key property that cannot be ignored.
What are the main applications of Pentachlorobenzenethiol?
Pentachlorothiophenol has a wide range of uses. In the rubber industry, it is often used as a plasticizer. The cap can break the molecular chain of raw rubber, reduce the viscosity of raw rubber, and then improve its plasticity, making rubber processing more convenient. Adding it during mixing can shorten the mixing time, reduce energy consumption, and improve the physical and mechanical properties of rubber products, such as tensile strength and wear resistance.
In the field of chemical synthesis, it also has its uses. It can be used as an intermediate to participate in the synthesis of a variety of organic compounds. By reacting with other reagents, more complex chemical structures can be constructed, laying the foundation for the preparation of specialty chemicals, drugs, etc.
In the modification of some specific materials, pentachlorothiophenol can also play a role. It can interact with the surface of the material to change the surface properties of the material, such as wettability, adhesion, etc., so as to expand the application range of the material and meet the special needs of material properties in different scenarios.
Although it has various uses, it has certain toxicity and environmental hazards due to its chlorine content. Therefore, it should be used with caution and follow relevant safety regulations and environmental protection requirements to ensure personal safety and ecological environment safety.
What is the preparation method of Pentachlorobenzenethiol?
The method of preparing pentachlorothiophenol has been used by many parties throughout the ages. One method can be obtained by reacting pentachlorobenzene with a sulfur-containing reagent under specific conditions.
Prepare an appropriate amount of pentachlorobenzene first, which is the main material of the reaction, and place it in a clean reactor. Then select a suitable sulfur-containing reagent, such as sodium hydrosulfide, and slowly add it to the kettle. This process requires strict control of temperature and pressure. The temperature should be maintained in a certain range, such as between [X] ° C and [X] ° C. The pressure should also be stabilized at about [X] kPa to prevent the reaction from being too violent or stagnant.
When reacting, an appropriate amount of catalyst may be added to promote the efficient progress of the reaction. The amount of this catalyst should be precisely prepared according to the proportion of the reaction material, and it must not be wrong. And it needs to be stirred continuously to make the material fully mixed and contacted to accelerate the reaction process.
When the reaction reaches the expected degree, that is, through specific separation methods, such as filtration, extraction, etc., the product pentachlorothiophenol is separated from the reaction system. Then it is washed, dried and other processes to remove impurities and obtain pure pentachlorothiophenol.
However, the preparation method may vary due to the purity of the material and the particularity of the reaction conditions. It is necessary for the operator to be careful and adjust flexibly according to the actual situation to obtain the ideal product.
Pentachlorobenzenethiol impact on the environment
In the case of pentachlorothiophenol, it is also a chemical substance. Its impact on the environment cannot be ignored.
This substance is quite toxic. If it escapes from nature, it will enter the water and soil, or it will be a serious disaster. The ecology of water bears the brunt. All creatures in the water, from the floating microorganisms to the genus of fish and shrimp, are harmed by it. Or it causes its physiological violation, growth is blocked, reproduction is difficult, and even death, and the ecological balance is chaotic.
In the soil, pentachlorothiophenol can accumulate in it, hindering the growth of plants. The roots of plants absorb this poison, and their stems, leaves, flowers, and plants are all affected by it. Or cause the plant to wither, the yield is sharply reduced, and the business of farming mulberry is also damaged.
And it is easy to evaporate in the atmosphere. If people absorb it, their health will be worried. Or it hurts the respiratory system, causing cough and asthma; or it damages the nervous system, making people think in a trance and lose memory.
Furthermore, pentachlorothiophenol is difficult to self-dissolve in the environment and persists for a long time. Over time, it gathers in the body of the organism, rises along the food chain, and the more high-level organisms accumulate, the more severe the damage. Therefore, when it comes to this thing, it is necessary to be careful and prevent it, control its use, control its discharge, and protect the tranquility of the environment and protect the well-being of all living beings.