PROCION RED MX-5B

ChEBI: A 2,4-dichloro-1,3,5-triazine with a multi-substituted napthalen-1-ylamino substituent at the 6-position.

Jujube red powder. Solubility in water (20℃) is 80g/L, (50℃) is 110g/L. The aqueous solution is bluish red, add 1mol/L sodium hydroxide to turn orange-red, then add the insurance powder and warm to light dark yellow, then add sodium perborate can't restore the original color. In concentrated sulfuric acid, dark red, no change after dilution; in concentrated nitric acid, red, no change after dilution.

Procion Red is a monoazo dye, that is highly soluble in water. It is used for dyeing cellulose, nylon, silk and wool.

Using aniline, H acid, and cyanuric chloride as raw materials, first condense H acid and cyanuric chloride, then diazotize aniline, couple with the aforementioned condensation products, and obtain finished products by salting out, filtering, and drying. . Add water, H acid and soda ash to the dissolving pot, stir to dissolve. Add water and cyanuric chloride in the condensation pot, stir and add ice to cool down to 5℃, put the dissolved H acid solution from the dissolving pot, add ice and soda ash at the same time, maintain 0-5℃, weakly alkaline, stir until The reaction is complete. Add water and hydrochloric acid to the diazotization kettle, add aniline while stirring, add ice to cool to 0°C, add sodium nitrite solution, and stir to maintain this temperature to the end of the reaction. Coupling: Put the materials in the condensation pot into the coupling pot through a cloth filter, start stirring at 0-2°C to add the aniline diazonium salt solution, and add the soda ash solution at the same time to accelerate the coupling reaction, until the pH is 6.8- when the reaction is complete 7. Salting out: Add table salt and urea to the coupling pot for salting out. After filtering, the filter cake is put into a kneader and mixed with anhydrous disodium hydrogen phosphate and anhydrous dipotassium hydrogen phosphate. The mixture was vacuum dried at 85°C. After crushing, it is blended with sodium sulfate in a blending machine to form a finished product.

Used for dyeing cotton, silk, wool and rayon fabrics

Procion Red has been used in the visualization of osteocyte canalicular system. It has been used as an adsorbate in the biosorption byBacillus subtilis.