[Chemical Knowledge]：The nature, use, upstream and downstream raw materials, storage methods, isononyl alcohol is dangerous goods?

Properties of isononanol

Isononyl alcohol (Isononyl Alcohol), chemical formula C9H20O, is a colorless transparent liquid with a slight alcohol-specific odor. Its molecular structure contains a nine carbon chain and a hydroxyl group, giving it the typical chemical properties of alcohols. The boiling point of isononanol is about 190-195°C, the melting point is about -70°C, and the density is about 0.83g/cm³. At room temperature, it can be miscible with organic solvents such as ethanol and ether, but its solubility in water is low, about 1.3g/L. Isononyl alcohol has high chemical stability, but it is flammable at high temperature or fire source.

Isononyl alcohol use

Isononyl alcohol is widely used in industry, and one of the most important uses is as a raw material for the production of plasticizers. It reacts with phthalic anhydride to form isononyl phthalate, a commonly used plasticizer widely used in plastics, rubber and coatings industries. Isononyl alcohol can also be used in the production of surfactants, lubricating oil additives and fatty alcohol polyoxyethylene ethers in cosmetics. In the coatings industry, isononanol is used as a solvent and co-solvent to improve the fluidity and adhesion of coatings.

Upstream raw materials

The production of isononanol mainly uses the hydrogenation reaction of nonene. Nonene is a mixture obtained by petroleum cracking or heavy oil catalytic cracking, and pure nonene is obtained by separation and purification. Under the action of cobalt, nickel and other catalysts, nonene generates isononanol through hydrogenation reaction. The source of nonene is mainly dependent on the petrochemical industry, so its price and supply are directly affected by fluctuations in the oil market. Hydrogen is also an important raw material for the production of isononanol, which is usually obtained by steam reforming of natural gas or water gas conversion in industry.

Downstream Products

The downstream products of isononyl alcohol mainly include various plasticizers, lubricating oil additives and surfactants. Taking plasticizers as an example, isononyl phthalate generated by isononyl alcohol esterification is an important plasticizer raw material, which is widely used in the production of PVC, PE and other plastic products to improve its flexibility and durability. In terms of lubricating oil additives, isononyl alcohol can be esterified into various ester compounds, which can improve the oxidation resistance and thermal stability of lubricating oil and prolong its service life. In the field of surfactants, isononyl alcohol can react with ethylene oxide to form isononyl alcohol polyoxyethylene ether, which is used in detergents and cleaners to improve their detergency and foam performance.

Isononyl alcohol storage method

Since isononanol is a flammable liquid, its storage must follow strict safety procedures. Isononyl alcohol should be stored in a cool and ventilated warehouse, away from fire and heat sources, and avoid direct sunlight. The storage container should use a well-sealed metal drum or tank, and regularly check the sealing condition to prevent leakage. The warehouse shall be equipped with appropriate fire fighting equipment, such as fire extinguishers, sandboxes, etc., to deal with sudden fire. Operators should wear protective equipment to avoid direct skin and eye contact with isononanol, and avoid inhaling its vapors during operation.

Market and Development Prospects

With the global emphasis on environmental protection and sustainable development, the market demand for isononyl alcohol continues to grow. Especially in the field of plasticizers, traditional phthalate plasticizers are gradually replaced by environmentally friendly plasticizers due to their potential environmental and health risks, while isononyl alcohol-derived plasticizers have a broad market prospect due to their good environmental performance and excellent physical and chemical properties. With the development of new materials and new technologies, the application of isononanol in the field of lubricant additives and surfactants is also expanding.

Environmental and Safety Considerations

In the process of producing and using isononanol, attention must be paid to environmental protection and safety issues. In the production process, advanced technology should be adopted to reduce the discharge of waste gas, waste water and waste residue, and effectively treat the emissions to avoid pollution to the environment. During use, management should be strengthened to ensure the safety of operators, and the storage and transportation of isononanol should be strictly supervised. Discarded isononanol and its packaging shall be disposed of in accordance with regulations to avoid contamination of soil and water sources.

Summary

As an important organic chemical raw material, isononyl alcohol has broad application prospects. Its excellent physical and chemical properties make it widely used in the fields of plasticizers, lubricant additives and surfactants. The production and use of isononanol is also accompanied by certain environmental and safety risks, which need to be controlled by effective measures. In the future, with the increasingly stringent environmental protection regulations and the continuous advancement of technology, isononyl alcohol will usher in greater market opportunities and development space.