Application overview of tributyl borate
Tributyl borate is a colorless clear liquid that decomposes rapidly when exposed to water. It can be obtained by the reaction of butanol and H3BO3. Tributyl borate is an intermediate for the preparation of boron hydrogen compounds. It can be used to synthesize semiconductor boron diffusion sources, fire retardants, adhesives and anhydrous system desiccants. In addition, it can also be used as polymer additives, gasoline additives, sterilants, and retardants. It is used in fuels, automobile brake fluids and special surfactants, and has a wide range of applications.
Application and preparation of tributyl borate
Add 6.2 g boric acid (0.10 mol), hydroxytetrahydrofuran 47.4 mL n-butanol (0.52 mol), 1. sodium tetraborate 0 g sodium bisulfate monohydrate, and magnetic stirring beads into a 250 mL microwave-specific single-neck flask , and then place the flask in a microwave-heated reactor equipped with a water trap and a condenser tube. The set heating steps are divided into 5 steps, namely: heating at 60℃ for 2.0 min, heating at 80℃ for 2.0 min, heating at 90℃ for 5.0 min, heating at 100℃ for 2.0 min, heating at 118℃ for 2.0 min, the total heating time is is 13.0 minutes. Start the reactor, run the set program, heat to reflux and separate water. After the reaction is completed, transfer the product to a 100 mL distillation bottle. First, distill a small amount of water and excess n-butanol under normal pressure, and then perform distillation under reduced pressure. , collect fractions in the range of 85~89℃/0.6 kPa. The product is a colorless oily liquid with a slight fragrance under normal temperature and pressure, weighing 20.2g, and the corresponding yield is 87.4% (based on boric acid)
Applications of tributyl borate
A method for preparing rare earth-doped borate nanosheets and nanoflower phosphors: (1) Dissolve nitrate in a mixed solution of deionized water and ethanol; (2) Add tributyl borate, The amount of tributyl borate in the solution is 1 to 4 times that of nitrate; (3) Add ammonia to adjust the pH of the solution to 7.5 to 8.5; the volume ratio of water and ammonia to ethanol in the solution is 1:2; The ratio of the amount of nitrate to the total volume of water and ethanol is 0.025~0.1 mol/L; (4) Stir the solution for 1~2 hours, and incubate it at 160~200°C for 10~16 hours to obtain a white precipitate; (5) Centrifuge, wash and dry the white precipitate to obtain flake or flower-shaped rare earth doped yttrium borate phosphor powder. The preparation method of the invention is easy to operate, has simple process equipment, does not use toxic solvents, and prepares nanosheets and nanoflowers with uniform thickness, good dispersion and controllable structure.
CN200910092210.7 provides a method for preparing cobalt borate, which belongs to the field of preparation of composite accelerators. Cobalt borate is recognized as the rubber composite accelerator with the best adhesion properties. The method includes: mixing neodecanoic acid, isooctanoic acid, glacial acetic acid, xylene and cobalt hydroxide to perform an acid-base neutralization reaction, and obtaining an intermediate product after the neutralization reaction is completed; adding tributyl borate to the obtained intermediate product The ester is subjected to a boric acylation reaction, and calcium borate is added as an additive. The reaction product obtained after the boric acylation reaction is completed is cobalt boric acid. In this preparation method, neodecanoic acid, isooctanoic acid, and lower fatty acids glacial acetic acid and xylene are combined to perform an acid-base neutralization reaction with cobalt hydroxide to generate an intermediate product. Due to the action of glacial acetic acid and xylene, the reaction rate can be increased , accelerating the formation of intermediate products; and, in the final borate reaction, calcium borate is added as an additive together with tributyl borate, which effectively shortens the reaction time and improves the insolubility of the final cobalt borate. physical properties and anti-static properties.
