| Liquid Chemicals |
Methanol
| Methanol | Methanol Also known as hydroxymethane, wood alcohol, or wood spirits, is an organic compound and the simplest saturated monohydric alcohol, with the chemical formula CH3OH/CH4O. It has a molecular weight of 32.04 and a boiling point of 64.7°C. Modern methanol is produced directly through an industrial catalytic process involving carbon monoxide, carbon dioxide, and hydrogen. Methanol is light, highly volatile, colorless, and flammable, with an odor very similar to ethanol (alcoholic beverages). However, unlike ethanol, methanol is highly toxic and cannot be consumed. It is commonly used as a solvent, antifreeze, fuel, or denaturant for ethanol, and can also be used to produce biodiesel through transesterification reactions. |
| Uses | Methanol is a versatile organic chemical raw material with great development potential. It has a wide range of applications and can be used to produce a series of organic chemical products such as formaldehyde, acetic acid, methanol-to-olefins (MTO), synthetic rubber, methylamine, dimethyl ether, sodium methoxide, dimethyl terephthalate, methyl methacrylate, methyl tert-butyl ether, and additional dimethyl ether and sodium methoxide. Furthermore, methanol can be blended with gasoline for combustion or used as an alternative to gasoline as a power fuel. It can also be used to synthesize methanol protein. |
Ethylene Glycol
| Ethylene Glycol | Ethylene Glycol Also known as "glycol" or "1,2-ethanediol," abbreviated as EG, has the chemical formula (CH2OH)2. It is the simplest diol. Ethylene glycol is a colorless, odorless, and sweet-tasting liquid that is toxic to animals, with a lethal dose for humans of approximately 1.6g/kg. Ethylene glycol is miscible with water and acetone but has limited solubility in ethers. It is used as a solvent, antifreeze, and as a raw material for the synthesis of polyester fibers (Dacron). Polyethylene glycol (PEG), a polymer of ethylene glycol, serves as a phase transfer catalyst and is also used in cell fusion; its nitrate ester is an explosive. |
| Uses | Ethylene glycol is primarily used in the production of polyester terephthalate fibers, polyester resins, as a desiccant, plasticizer, surfactant, synthetic fibers, cosmetics, and explosives. It also serves as a solvent for dyes, inks, and other materials, and is formulated into antifreeze for engines and dehydration agents for gases. It is used in the manufacture of resins and as a wetting agent for cellophane, fibers, leather, and adhesives. From ethylene glycol, synthetic resin PET can be produced. Fiber-grade PET is known as polyester fiber or terylene, while bottle-grade PET is used to make mineral water bottles and other containers. It can also be used to produce alkyd resins, glyoxal, and other products, and functions as an antifreeze. Besides being used as antifreeze in automobiles, it is also employed in the transport of industrial refrigeration, commonly known as a secondary refrigerant. Additionally, it can be used as a condenser, similar to water. |
Styrene
| Styrene | It is an organic compound formed by replacing one hydrogen atom of ethylene with benzene ring. The electron of the vinyl group is conjugated with the benzene ring, insoluble in water, soluble in ethanol and ether, and gradually undergoes polymerization and oxidation when exposed to air. |
| Uses | Styrene is an important monomer in the industrial synthesis of resins, ion exchange resins, synthetic rubbers, plastics, and more. It is used in the production of styrene-butadiene rubber, polystyrene, and polystyrene foam. It is also employed in copolymerization with other monomers to manufacture various engineering plastics for diverse applications. For instance, copolymerization with acrylonitrile and butadiene yields ABS resin, which is widely used in various household appliances and industrial applications. Copolymerization with acrylonitrile results in SAN, a resin that is impact-resistant and has a glossy appearance. When copolymerized with butadiene, it produces SBS, a thermoplastic rubber that is widely used as a modifier for polyvinyl chloride and polypropylene. Styrene is primarily used in the production of styrene-based resins and styrene-butadiene rubber, and it is also one of the raw materials for the production of ion exchange resins and pharmaceuticals. |
Benzene
| Benzene | It is an aromatic hydrocarbon, a colorless liquid that is flammable, volatile, and has a special aromatic odor at room temperature.. Benzene is highly toxic. According to the preliminary compilation reference of the Carcinogen List published by the International Agency for Research on Cancer of the World Health Organization on October 27, 2017, benzene is listed in Group 1 carcinogens. Benzene is the simplest aromatic hydrocarbon, insoluble in water but easily soluble in organic solvents, and it can also be used as an organic solvent itself. Benzene is a basic raw material in petrochemicals, and its production volume and technological level are indicators of a country's petrochemical development. |
| Uses | Benzene is most importantly used in industry as a chemical raw material for synthesizing dyes, synthetic rubbers, synthetic resins, synthetic fibers, plastics, pharmaceuticals, pesticides, photographic films, and petrochemical products. Due to its excellent solubility, it is widely used as an adhesive and industrial solvent. It serves as a solvent and cleaner in precision optical instruments, the electronics industry, and organic synthesis. Benzene is also used as an analytical reagent, such as a solvent and a standard material for chromatographic analysis. In cosmetics, it is used as a solvent, primarily as a diluent in nail polish and other cosmetics to accelerate drying and hardening and enhance the solubility of resin and other film components. Additionally, benzene is used as a solvent and in the synthesis of benzene derivatives, fragrances, dyes, plastics, pharmaceuticals, explosives, rubbers, etc. |
Acetonitrile
| Acetonitrile | Acetonitrile Also known as methyl cyanide, is a colorless, highly volatile liquid with a special ether-like odor. It exhibits excellent solvent properties and can dissolve a variety of organic, inorganic, and gaseous substances. Acetonitrile has a certain degree of toxicity and is infinitely miscible with water and alcohols. It undergoes typical nitrile reactions and is used to prepare many typical nitrogen-containing compounds, making it an important organic intermediate. |
| Uses | Acetonitrile is primary used as a solvent such as serving as a solvent for extracting butadiene, for synthetic fibers, and for certain specialty coatings. In the petroleum industry, it is used as a solvent to remove tar, phenols, and other substances from petroleum hydrocarbons. In the oil and fat industry, it is used as a solvent to extract fatty acids from animal and vegetable oils. In the pharmaceutical industry, it is used as a reaction medium for the recrystallization of steroidal drugs. When a polar solvent with a high dielectric constant is required, a binary azeotrope mixture of acetonitrile and water is often used: containing 84% acetonitrile with a boiling point of 76°C. Acetonitrile is also an intermediate in the production of pharmaceuticals (such as Vitamin B1) and perfumes, and is a raw material for the synthesis of s-triazine nitrogen fertilizer synergists. It is also used as a denaturant for alcohol. Additionally, it can be used in the synthesis of ethylamine and acetic acid, and has many applications in fabric dyeing and the lighting industry. |
MTBE
| MTBE | MTBE Methyl tert-Butyl Ether(MTBE) is an organic compound that exists as a colorless and transparent liquid. It is slightly soluble in water but easily soluble in ethanol and ether. MTBE serves as an excellent high-octane gasoline additive and antiknock agent. |
| Uses | MTBE is primarily used as a gasoline additive due to its excellent antiknock properties and its ability to increase octane values. It can also be cracked to produce isobutylene. MTBE has good miscibility with gasoline, low water absorption, and is environmentally friendly. It can be improved to serve as an analytical solvent and extractant. In chromatography, especially high-pressure liquid chromatography, it is used as an eluent. It forms azeotropes with some polar solvents such as water, methanol, and ethanol. Additionally, MTBE has mild anesthetic properties. |
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