Acid Yellow 99

• CAS: 10343-58-5
• Catalog Number: ACM10343585
• Category: Main Products
• Molecular Weight: 496.35
• Molecular Formula: C16H13CrN4NaO8S
• Synonyms: Acid complex yellow GR
• Appearance: Yellow to brown powder

Case Study

Adsorption Behavior of Acid Yellow 99 on Aspergillus Niger Biomass

Naskar A, et al. Journal of Molecular Liquids, 2017, 242, 892-899.

Acid Yellow 99 is a common textile dye and therefore a common component of dye wastewater. In aqueous media, acid yellow dye 99 can be adsorbed by Aspergillus niger biomass, which may be a way for biomass to resist pollution. The results show that the maximum adsorption capacity of acid yellow 99 on biomass can reach 544.30 mg/g.
Adsorption of Acid Yellow 99 on Biomass
· The FTIR studies suggest that the carboxyl and amine groups are involved in intermolecular interactions for rapid and efficient dye adsorption.
· RSM analysis shows that the adsorption efficiency of ANB towards AY 99 is strongly pH dependent and the maximum adsorption (44.35 mg/g) occurs at pH 3.0.
· The experimental data can be well described by the pseudo-second order kinetic as well as Redlich-Peterson isotherm model.
· Thermodynamic study suggests that the present adsorption process is spontaneous, endothermic and entropy driven.
· Regeneration experiment reveals that AY 99 sorbed onto ANB can be successfully recovered in 0.1 M NaOH solution and four consecutive adsorption-desorption cycles can be carried out.

Zinc Oxide Material-Mediated Solar Decolorization of Acid Yellow 99 Dye

Pitchaimuthu S, et al. Applied Water Science, 2015, 5, 201-208.

Photocatalysis is a widely reported contaminated water treatment technology for dye contaminants in textile wastewater. Photocatalytic decolorization of acid yellow 99 (AY99) dye involves the development of photocatalysts such as β-cyclodextrin(β-CD)-enhanced zinc oxide (ZnO). The photodecolorization of AY99 dye in ZnO-β-CD/visible system shows better photocatalytic decolorization efficiency than ZnO/visible system.
Photodecolorization mechanism of AY99 dye in ZnO-β-CD system
· β-CD traps holes on the surface of active ZnO, forming stable ZnO/β-CD inclusion complexes.
· β-CD forms an inclusion complex with AY99 dye molecules, causing indirect photodecolorization to become the main reaction channel.
· AY99 dye molecules enter the cavity of β-CD, and β-CD is connected to the ZnO surface in the equilibrium stage, absorbs light radiation and is excited. Electrons are rapidly injected from the excited dye into the conduction band of ZnO.
· Another important free radical in ZnO-β-CD illumination is superoxide anion radical (·O2-). The dye and dye cationic radicals then degrade.

Custom Reviews

July 12, 2024

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Great Dye for Wool Carpets
I used Acid Yellow 99 from Alfa Chemistry in my research on wool carpet dyeing, and it provided excellent results. The yellow powder easily dissolved in strong sulfuric acid, producing a vibrant color that enhanced the carpet's appearance. I highly recommend this product for anyone in the textile industry.

Custom Q&A

What is the molecular formula of Acid Yellow 99?

The molecular formula of Acid Yellow 99 is C16H13CrN4NaO8S.

What is the molecular weight of Acid Yellow 99?

The molecular weight of Acid Yellow 99 is 496.3 g/mol.

What are the synonyms of Acid Yellow 99?

The synonyms of Acid Yellow 99 are Acid Yellow 99 (C.I. 13900), 10343-58-5, Acid Yellow 99 sodium;3-[[(Z)-1-anilino-3-hydroxy-1-oxobut-2-en-2-yl]diazenyl]-2-hydroxy-5-nitrobenzenesulfonate, and chromium.

What is the IUPAC name of Acid Yellow 99?

The IUPAC name of Acid Yellow 99 is sodium;3-[[(Z)-1-anilino-3-hydroxy-1-oxobut-2-en-2-yl]diazenyl]-2-hydroxy-5-nitrobenzenesulfonate;chromium.

What is the InChI of Acid Yellow 99?

The InChI of Acid Yellow 99 is InChI=1S/C16H14N4O8S.Cr.Na/c1-9(21)14(16(23)17-10-5-3-2-4-6-10)19-18-12-7-11(20(24)25)8-13(15(12)22)29(26,27)28;;/h2-8,21-22H,1H3,(H,17,23)(H,26,27,28);;/q;;+1/p-1/b14-9-,19-18?;;.

What is the CAS number of Acid Yellow 99?

The CAS number of Acid Yellow 99 is 10343-58-5.

What is the hydrogen bond donor count of Acid Yellow 99?

The hydrogen bond donor count of Acid Yellow 99 is 3.

What is the hydrogen bond acceptor count of Acid Yellow 99?

The hydrogen bond acceptor count of Acid Yellow 99 is 10.

What is the rotatable bond count of Acid Yellow 99?

The rotatable bond count of Acid Yellow 99 is 4.

How many hydrogen bond donor counts does Acid Yellow 99 have?

Acid Yellow 99 has 3 hydrogen bond donor counts.

How many hydrogen bond acceptor counts does Acid Yellow 99 have?

Acid Yellow 99 has 10 hydrogen bond acceptor counts.

What is the topological polar surface area of Acid Yellow 99?

The topological polar surface area of Acid Yellow 99 is 206 ?2.

How many rotatable bond counts does Acid Yellow 99 have?

Acid Yellow 99 has 4 rotatable bond counts.