Bis(2-ethylhexyl)amine, with the CAS number 106 - 20 - 7, is a high - quality chemical product. It is an organic compound with a molecular formula of C₁₆H₃₅N and a molecular weight of approximately 241.46 g/mol. This chemical typically appears as a clear, colorless to pale - yellow liquid. It has a characteristic amine odor. The boiling point of Bis(2 - ethylhexyl)amine is around 293 - 296°C, and its melting point is approximately - 60°C. It is insoluble in water but soluble in common organic solvents such as ethanol, ether, and benzene. The density of the product is about 0.81 g/cm³ at 20°C.
Bis(2 - ethylhexyl)amine has a wide range of applications in different industries. In the rubber industry, it is used as an accelerator and activator in the vulcanization process. It can improve the cross - linking efficiency of rubber molecules, thereby enhancing the physical and mechanical properties of rubber products, such as tensile strength, tear resistance, and abrasion resistance.
In the field of surfactants, it serves as an important raw material. It can be used to synthesize cationic, anionic, and non - ionic surfactants. These surfactants are widely used in detergents, emulsifiers, and dispersants. For example, in emulsifying agents, it helps to form stable emulsions of oil and water, which are used in various industrial processes and consumer products like cosmetics and paints.
In the metal extraction industry, Bis(2 - ethylhexyl)amine is used as a collector in the flotation process. It can selectively adsorb on the surface of metal ores, making it easier to separate valuable metals from gangue minerals.
When handling Bis(2 - ethylhexyl)amine, appropriate personal protective equipment (PPE) should be worn, including gloves, goggles, and a lab coat. In a laboratory or industrial setting, it should be stored in a cool, dry, well - ventilated area away from sources of ignition and incompatible substances.
For its use in the rubber industry, it is usually added during the mixing process of rubber compounds. The dosage should be determined according to the specific formulation and requirements of the rubber product. Generally, a small amount (usually a few percent) is sufficient to achieve the desired accelerator and activator effects.
When synthesizing surfactants, Bis(2 - ethylhexyl)amine is reacted with other chemical reagents under specific reaction conditions, such as appropriate temperature, pressure, and reaction time. The reaction should be carried out in a well - equipped chemical reactor under strict supervision to ensure safety and reaction efficiency.
In the metal flotation process, it is added to the flotation pulp in an appropriate concentration. The concentration needs to be adjusted according to the type and grade of the ore being processed.
Case 1: A rubber manufacturing company was facing problems with the low tensile strength and poor abrasion resistance of its rubber products. After adding Bis(2 - ethylhexyl)amine as an accelerator in the vulcanization process, the tensile strength of the rubber increased by 20%, and the abrasion resistance improved significantly. This led to an increase in the product's market competitiveness and customer satisfaction.
Case 2: A surfactant manufacturer used Bis(2 - ethylhexyl)amine to synthesize a new type of non - ionic surfactant. This surfactant showed excellent emulsifying and dispersing properties in the production of water - based paints. The paint had a more uniform particle size distribution, better stability, and improved gloss, which was well - received by the paint industry.
Case 3: In a metal mining company, the use of Bis(2 - ethylhexyl)amine as a collector in the flotation of copper ore increased the copper recovery rate from 80% to 85%. This not only improved the economic benefits of the mining operation but also reduced the waste of resources.
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