Name | procion red mx-5B |
Synonyms | procion red mx-5B C.I. Reactive Red 2 disodium 5-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(E)-phenyldiazenyl]naphthalene-2,7-disulfonate (3Z)-5-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonic acid |
CAS | 17804-49-8 |
EINECS | 241-776-2 |
InChI | InChI=1/C19H12Cl2N6O7S2.2Na/c20-17-23-18(21)25-19(24-17)22-12-8-11(35(29,30)31)6-9-7-13(36(32,33)34)15(16(28)14(9)12)27-26-10-4-2-1-3-5-10;;/h1-8,28H,(H,29,30,31)(H,32,33,34)(H,22,23,24,25);;/q;2*+1/p-2/b27-26+; |
Molecular Formula | C19H10Cl2N6Na2O7S2 |
Molar Mass | 615.334 |
Melting Point | >300 °C(lit.) |
Storage Condition | room temp |
Physical and Chemical Properties | Chemical properties jujube red powder. The solubility in water (20 ℃) is 80g/L,(50 ℃) is 110g/L. The aqueous solution is blue-red, add 1mol/L sodium hydroxide to turn orange-red, add sodium hydrosulfite and warm to light dark yellow, and add sodium perborate to not restore the original color. It is dark red in concentrated sulfuric acid and has no change after dilution; it is red in concentrated nitric acid and has no change after dilution. |
Use | Uses reactive brilliant red X-3B is mainly used for dyeing cotton, viscose fiber skein and fabric, with medium affinity, blue red dye and excellent brightness. Easy to hydrolysis, dyeing bath generally used 30-40 °c. Can be dyed single color, can also be color, color matching often use active yellow X-6G, active Orange X-GN or reactive brilliant orange X-7R and other combinations of various red, or with the active golden yellow X-G, active blue X-R composition of the three primary colors, all medium and deep colors. Generally not used for cotton, viscose fabric printing, can be used for direct printing of silk, polyester/cotton blended fabric, knitted fabric two Bath dyeing. |
Hazard Symbols | Xn - Harmful |
Risk Codes | R36 - Irritating to the eyes R42/43 - May cause sensitization by inhalation and skin contact. |
Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
WGK Germany | 2 |
RTECS | QJ6416000 |
Raw Materials | Sodium sulfate Kneader N-(Isoxazol-5-yl)sulphanilamide Aniline 8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate Cyanuric chloride |
using aniline, h acid and cyanuric chloride as raw materials, first condensation of h acid and cyanuric chloride, then diazotization of aniline, coupling with the aforementioned condensation products, salting out, filtering and drying to obtain the finished product..
Add water, H acid and soda ash into the dissolving pot and stir to dissolve it. Add water and cyanuric chloride to the condensation pot, stir and add ice to cool down to 5 ℃, put the dissolved H acid solution from the dissolution 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 in the diazotization pot, add aniline under stirring, add ice to cool to 0 ℃, add sodium nitrite solution, 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 bag filter, stir at 0-2 ℃ to add aniline diazonium salt solution, and add soda ash solution at the same time to accelerate the coupling reaction, and the pH value is 6.8-7 when the reaction is complete.
Salting out: Add salt and urea to the coupling pot for salting out. After filtration, the filter cake is put into the kneader and mixed evenly with anhydrous disodium hydrogen phosphate and anhydrous dipotassium hydrogen phosphate. The mixture was vacuum dried at 85°C. After crushing, it is mixed with sodium sulfate into a finished product in a mixing machine.
EPA chemical information | C. I. Reactive Red 2 (17804-49-8) |