BASIC RED 46

• CAS: 12221-69-1
• Catalog Number: ACM12221691
• Category: Main Products
• Molecular Weight: 401.30
• Molecular Formula: C18H21BrN6
• Synonyms: C.I. BASIC RED 46
• Appearance: Dark red powder

Case Study

Adsorption and Photocatalytic Removal Studies of Basic Red 46 Dye

Elhadj, Mekatel, et al. Separation Science and Technology, 2020, 55(5), 867-885.

Basic red 46 dye (BR 46) is an industrial dye used as a model compound of azo dyes in this work to study the removal processes by adsorption and photocatalysis. The two processes involved adsorption on activated clay followed by photocatalysis on ZnO. The results showed that the maximum adsorption capacity of activated clay under optimal conditions was 175 mg/g with an adsorption efficiency of 97%. The remaining BR 46 concentration was removed by photocatalysis on ZnO, resulting in a BR 46 elimination efficiency of up to 100%.
Adsorption and photocatalytic experiments
· The adsorption of BR 46 was conducted in a 250 cm3 double walled Pyrex reactor with temperature control using a thermostated bath. BR 46 solutions ranging from 25 to 125 mg/L were prepared by diluting a 1000 mg/L stock solution.
· The influence of pH on adsorption was investigated within the pH range of 3 to 9, adjusted with 0.1 N NaOH or 0.1 N H2SO4, and measured using a pH Meter.
· Kinetics, isotherms, and equilibrium adsorption of BR 46 solutions at concentrations of 25 to 125 mg/L were studied within the range of 25 to 50. The final concentration of BR 46 was determined using a UV-Vis spectrophotometer at λmax = 530 nm.
· The residual BR 46 concentration after adsorption was treated through heterogeneous photocatalysis on ZnO exposed to solar light. ZnO was synthesized from Zn (CH3COO)2, 2 H2O at 350°C in a hood.

Effective Adsorption Removal of Basic Red 46 Dye by Natural Clay

Paredes-Quevedo, Laura C., et al. Water, Air, & Soil Pollution, 2021, 232, 1-19.

In this work, basic red 46 (BR-46) dye was used as a model cationic textile dye to study its adsorption removal effect on natural (crude) bentonite. According to the adsorption curve, the adsorption capacity (q) of this bentonite is 594 mg g-1. In addition, the adsorption process of BR-46 on bentonite is fast (10 min) and more complicated than simple physical adsorption, which may involve chemical adsorption and the use of various types of adsorption sites.
Adsorption experiment of BR-46 on bentonite
· The adsorption experiment process of BR-46 on bentonite involved conducting experiments in a glass semibatch reactor with a capacity of 250 mL.
· The reactor was filled with 100 mL of BR-46 solution at various concentrations (5-80 mg L-1) and thermostated at 25 °C, 30 °C, or 45 °C. The pH of the solution was adjusted to 4-9 using NaOH or H2SO4. Bentonite powder (10 mg) was added to the solution, and adsorption was initiated under constant stirring.
· Periodically, 2 mL samples were withdrawn, filtered, and analyzed for absorbance at 530 nm using a UV-Vis spectrophotometer. The detection limit was 0.04 mg L-1. Experiments were conducted in triplicate, with the 60 mg L-1 concentration repeated eight times to determine experimental errors. Experimental errors ranged from 1-4% at different sampling times.

Custom Q&A

What is the molecular formula of Basic Red 46?

The molecular formula of Basic Red 46 is C18H21BrN6.

What is the molecular weight of Basic Red 46?

The molecular weight of Basic Red 46 is 401.3 g/mol.

What is the IUPAC name of Basic Red 46?

The IUPAC name of Basic Red 46 is N-benzyl-4-[(2,4-dimethyl-1,2,4-triazol-4-ium-3-yl)diazenyl]-N-methylaniline;bromide.

What is the InChIKey of Basic Red 46?

The InChIKey of Basic Red 46 is SYHRPJPCZWZVSR-UHFFFAOYSA-M.

What is the canonical SMILES representation of Basic Red 46?

The canonical SMILES representation of Basic Red 46 is CN1C(=[N+](C=N1)C)N=NC2=CC=C(C=C2)N(C)CC3=CC=CC=C3.[Br-].

What is the CAS number of Basic Red 46?

The CAS number of Basic Red 46 is 12221-69-1.

How many hydrogen bond acceptors does Basic Red 46 have?

Basic Red 46 has 5 hydrogen bond acceptors.

What is the topological polar surface area of Basic Red 46?

The topological polar surface area of Basic Red 46 is 49.7 Ų.

How many covalently-bonded units are present in Basic Red 46?

Basic Red 46 has 2 covalently-bonded units.

Is the compound canonicalized?

Yes, the compound is canonicalized.