Thiophenethiol
Quinoline Thiophene Imidazole Thiazole
Thiophenethiol
Name Thiophenethiol
Chemical Formula C4H4SH
Molar Mass 86.14 g/mol
Appearance Colorless to pale yellow liquid
Odor Strong, unpleasant odor
Density 1.065 g/cm³ (at 20 °C)
Boiling Point 155 - 156 °C
Melting Point -40 °C
Solubility In Water Slightly soluble
Solubility In Organic Solvents Soluble in many organic solvents
Flash Point 44 °C
Pka 8.58
FAQ

What are the main uses of thiophenethiol?

Thiophenethiol (Thiophenethiol) is also an organic sulfur compound. It has a wide range of main uses and is used in many fields.

In the field of organic synthesis, thiophenethiol is an important reagent. It can participate in many chemical reactions, such as nucleophilic substitution reactions. In this reaction, the sulfur atom of thiophenethiol is rich in solitary pairs of electrons, which is nucleophilic and can react with substrates such as halogenated hydrocarbons to form new carbon-sulfur bonds. This is of great significance for the construction of complex organic molecular structures and helps chemists synthesize various organic compounds with special structures and functions.

It also plays an extraordinary role in materials science. It can be used to modify the surface of materials. Through the strong interaction between sulfur atoms and some metal surfaces, a self-assembled monolayer can be formed on the surface of metal materials. This can effectively change the properties of the surface of the material, such as wettability and conductivity, and then improve the performance of the material in specific environments. It has broad application prospects in electronic devices, sensors and other fields.

Furthermore, in the field of medicinal chemistry, it can also be seen. Due to its unique chemical structure and properties, it can be used as a structural unit of lead compounds, laying the foundation for the development of new drugs. By modifying and optimizing its structure, researchers are expected to obtain drug molecules with good biological activity and pharmacological properties, which will contribute to human health.

In addition, in the fragrance industry, thiophene mercaptan can be used to create unique fragrances due to its special smell, adding a unique flavor to perfumes, food additives, and other products.

What are the physical properties of thiophenethiol?

Thiophenethiol is one of the organic sulfur compounds. Its physical properties are quite unique, as follows:

Looking at its properties, under room temperature and pressure, thiophenethiol is mostly colorless to light yellow liquid, but its appearance may also change subtly due to differences in purity or storage conditions.

As for the smell, the smell emitted by this substance is extremely pungent and unique, just like many sulfur-containing compounds. Its smell is strong and unpleasant. If you accidentally smell it, you will feel pungent and unbearable. The characteristics of this smell are an important characteristic when identifying this substance.

When it comes to the melting point, the melting point of thiophene mercaptan is about -40 ° C. This value indicates that the substance begins to change from liquid to solid at relatively low temperatures. The characteristics of its melting point must be taken into account during the storage and transportation of the substance to ensure that it is in a suitable physical state.

In terms of boiling point, it is about 168-170 ° C. This boiling point value determines the temperature required for thiophene mercaptan to convert from liquid to gas under specific pressure conditions. This characteristic is a key parameter in the distillation, separation and other operations of chemical production, and is related to the ability to accurately extract or purify thiophene mercaptan from the mixture.

The density of thiophene mercaptan is about 1.065g/cm ³, which is slightly higher than that of water, which means that if it is mixed with water, the substance will sink to the bottom of the water. This density characteristic has important guiding significance in practical operation scenarios such as liquid-liquid separation.

In terms of solubility, thiophene mercaptan is soluble in a variety of organic solvents, such as ethanol, ether, benzene, etc. However, its solubility in water is very small. This difference in solubility is due to the characteristics of its molecular structure, which determines its dispersion and dissolution behavior in different solvent environments. It is a factor that must be carefully considered in many fields such as chemical synthesis and extraction.

What are the chemical properties of thiophenethiol?

Thiophenethiol is one of the organic sulfur compounds with unique chemical properties, which are described in detail below.

First, it is acidic. The sulfur-hydrogen bond (S-H) of thiophenothiol can dissociate protons and exhibit acidity. However, compared with common inorganic acids, its acidity is weaker. In a specific chemical reaction, this acidic property can cause thiophenothiol to release protons and react with alkali substances to form corresponding salts.

Second, it is quite nucleophilic. Sulfur atoms are rich in lone pair electrons, which are easy to attack electrophilic reagents and show nucleophilic properties. In the nucleophilic substitution reaction, the sulfur atoms of thiophene mercaptan can approach the carbon atoms of electrophilic reagents such as halogenated hydrocarbons, and the halogen atoms can leave, thereby forming new compounds containing sulfur.

Third, it is easy to oxidize. Thiophene mercaptan can be oxidized by various oxidants, such as common oxygen. After oxidation, the products are diverse, or disulfide (R-S-S-R) is formed, or further oxidized to sulfoxide (R-SO-R), sulfone (R-SO-R), etc.

Fourth, it can participate in metal coordination. The lone pair electrons of sulfur atoms can coordinate with metal ions to form metal complexes. This property is of great significance in catalytic reactions, materials science and other fields. By coordinating with metal ions, the reactivity and physical properties of thiophene mercaptan can be regulated.

Fifth, it has a special odor. Similar to most sulfur-containing organic compounds, thiophene mercaptan has a pungent and special odor, which can also be detected at very low concentrations.

The acidic, nucleophilic, redox, metal coordination ability and special odor of thiophene mercaptan have important applications in many fields such as organic synthesis, materials science, and medicinal chemistry.

What are the precautions for thiophenethiol during storage and transportation?

Thiophenethiol (Thiophenethiol) is active, and it needs to be cautious in storage and transportation to prevent accidents.

First, it is related to storage. This substance should be placed in a cool and well-ventilated place. Because thiophenethiol is prone to change when heated, it is necessary to avoid open flames and hot topics. The temperature of the warehouse should be controlled in an appropriate area, and it must not be too high to prevent its volatilization from intensifying or causing other dangers. And it must be stored decisively separately from oxidizing agents, acids, etc. Because of its active chemical properties, when encountering such substances, it is afraid of violent reactions and the risk of explosion.

Second, on transportation. Before transportation, it is necessary to check whether the packaging is intact and the seal is tight. If the package is damaged and thiophene mercaptan escapes, it will not only damage its quality, but also pose a hazard to the surrounding environment and people. During transportation, be sure to keep the car steady and avoid sudden braking or crutching to prevent the package from being damaged by collision. Transportation vehicles should also be equipped with corresponding varieties and quantities of fire equipment and leakage emergency treatment equipment. If traveling on highways, you must follow the designated route, do not change it at will, and do not stop in densely populated areas or residential areas for a long time.

Furthermore, whether it is storage or transportation, relevant operators must undergo professional training and be familiar with the characteristics of thiophene mercaptan and emergency treatment methods. When operating, be sure to strictly follow the operating procedures and wear appropriate protective equipment, such as gas masks, chemical protective clothing, etc., to ensure your own safety.

What are the effects of thiophenethiol on the environment and human health?

Thiophenethiol (Thiophenethiol) is also an organic sulfur compound. Its impact on the environment and human health cannot be ignored.

As far as the environment is concerned, if thiophenethiol escapes in the atmosphere, it may interact with other pollutants to form secondary pollutants and cause changes in air quality. And it has a foul smell, even if it is slightly concentrated, it is easily perceived by the senses, which can cause bad odor in the surrounding environment and disturb the lives of residents. If it flows into the water body, it may have various effects on aquatic organisms. Because of its sulfur content, it may affect the chemical balance of the water body, causing changes in the living environment of some aquatic organisms. Or toxic to fish, plankton, etc., breaking the ecological balance of the water body.

As for human health, thiophenethiol is irritating. If inhaled through the respiratory tract, it can irritate the mucosa of the respiratory tract, causing cough, asthma, and dyspnea. If it comes into contact with the skin, it may cause skin allergies, redness, swelling, and itching. If it is not carefully entered into the eyes, it will cause great irritation to the eyes, which can damage vision. Long-term exposure to thiophene mercaptan-containing environments may pose a chronic health risk. Or damage the nervous system, cause dizziness, fatigue, and memory loss. It may also affect the metabolism of the human body and interfere with normal physiological functions. And because of its certain toxicity, or potential carcinogenic risk, although relevant research may not be complete, it is necessary to prevent its potential threat to human health.

Therefore, in the production and use of thiophene mercaptan, safety regulations should be strictly adhered to to prevent its leakage, so as to reduce the harm to the environment and human health.