Acid Red 57

CAS

12217-34-4

Catalog Number

ACM12217344

Category

Acid Dyes

Molecular Weight

571.55

Molecular Formula

C₂₄H₂₁N₄Na₂O₆S₂

MSDS COA Spec Sheet

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Specification

Synonyms

6-amino-5-[[2-[(ethylphenylamino)sulphonyl]phenyl]azo]-4-hydroxynaphthalene-2-sulphonic acid;2-Naphthalenesulfonic acid, 6-amino-5-2-(ethylphenylamino)sulfonylphenylazo-4-hydroxy-;Acid red 57 (C.I. 17053);Red 3GP;C.I. Acid Red 57;Apollo Nylon Fast Red L

Adsorption of Acid Red 57 on Polyacrylonitrile/Activated Carbon Composite Materials

Ashraf A El-Bindary, et al. Spectrochim Acta A Mol Biomol Spectrosc. 2014, 124, 70-7.

Acid Red 57 (AR57) is widely used as a colorant in various industries such as textiles, cosmetics, printing inks, and medicine. It is commonly used to stain protein fibers, such as wool and silk, and for staining biological samples in histology and microscopy.
However, AR57 is also a common dye molecule remaining in wastewater. Adsorption is one of the most convenient and efficient techniques for removing dyes from wastewater into stable forms. A polyacrylonitrile/activated carbon (PAN/AC) composite material was developed for the adsorption of AR57.
Adsorption experiment of acid red 57
· The adsorption experiments of anionic dye AR57 were carried out in batch equilibrium mode. A 0.2-0.6 g sample of PAN/AC composite with 50 ml aqueous solution of a 40-150 mg/L AR57 solution at various pHs (1-9) reached for 90 min.
· Experiments were conducted for various time intervals to determine when adsorption equilibrium was reached and the maximum removal of AR57 was attained.
· The solution was then filtered through a filter paper and the filtrates were subjected to quantitative analyses. The equilibrium concentration of each solution was determined at the wavelengths of UV-maximum at 512.5 nm.

Efficient Photocatalytic Degradation of Acid Red 57 via ZnO Nanowires

Kiwaan H A, et al. Journal of the Chinese Chemical Society, 2019, 66(1), 89-98.

Under UV light irradiation, acid red 57 (AR57) in aqueous solution can be removed by the synthesized ZnO nanowires through photocatalytic degradation, and its optimal degradation efficiency can reach 90.03%. In this process, the degradation of AR57 conforms to first-order kinetics, and OH· radical is the main free radical.
Photodegradation Mechanism of Acid Red 57
· During the photodegradation of dyes over ZnO, e-, h+, ·OH, and O2·- are reduced by adding silver nitrate (e- scavenger), potassium iodide (h+ scavenger), isopropanol (·OH scavenger), and p-benzoquinone (O2·- scavenger) into the reaction solution, respectively.
· The addition of silver nitrate and p-benzoquinone caused slight change in the photocatalytic degradation of AR57 dye.
· However, the photodegradation percentage of AR57 was considerably reduced from 82 to 29.69% and 62% with the addition of isopropanol (OH· scavenger) and potassium iodide (h+ scavenger), respectively.
· Hence, the hydroxyl radical (OH·) is the main reactive species during the photocatalytic degradation of AR57.

Biosorption of Acid Red 57 by C. Aphidicola Cells

Kiran I, et al. Biochemical engineering journal, 2006, 31(3), 197-203.

Microbial methods such as biosorption have been shown to play a role in dye adsorption removal. For example, acid red 57 (AR57) can be removed via biosorption by dried C. aphidicola cells. The biosorption of AR57 dye on C. aphidicola followed a pseudo-second-order kinetic model and also followed an intraparticle diffusion model up to 40 min. The maximum biosorption capacity of 2.08 × 10^-4 mol/g was obtained at 20 °C.
Acid red 57 dye biosorption experiments
· A constant mass of C. aphidicola cells (0.02 g) was put in a beaker and 50 cm3 of dye solution (150 mg dm-3) were added to it, followed by stirring with varying equilibrium times.
· Biomass was then separated by centrifugation at 4500 rpm for 5 min followed by the analysis of supernatant for dye concentrations using a spectrophotometer at λmax 512.5 nm.
· The pH was adjusted by HCl or NaOH solution to determine the effect of solution pH on the dye biosorption capacity of the fungal biosorbent.
· The effect of varying equilibrium times between 10 and 120 min on the dye biosorption capacity of the biosorbent was then evaluated.

What is the molecular formula of Acid Red 57?

The molecular formula of Acid Red 57 is C24H22N4O6S2.

What is the molecular weight of Acid Red 57?

The molecular weight of Acid Red 57 is 526.6 g/mol.

What are some synonyms for Acid Red 57?

Some synonyms for Acid Red 57 include C.I. Acid red 57 and 2-Naphthalenesulfonic acid.

When was Acid Red 57 created and last modified?

Acid Red 57 was created on 2005-08-08 and last modified on 2023-12-23.

What is the InChIKey of Acid Red 57?

The InChIKey of Acid Red 57 is RJZLMBIYRSBCDQ-UHFFFAOYSA-N.

How many hydrogen bond donor counts does Acid Red 57 have?

Acid Red 57 has 3 hydrogen bond donor counts.